Southeast Coastal Plain and Caribbean Soil Survey Region #15

Technical Resources

Adamsville Series

Depth class: Very deep
Drainage class: Somewhat poorly drained
Permeability: Rapid
Landform: Natural levees adjacent to Lake Okeechobee
Parent material: Sandy sediments over buried organic matter
Slope: 0 to 5 percent
Taxonomic class: Hyperthermic, uncoated Aquic Quartzipsamments

Adamsville soils are closely associated with Basinger and Myakka soils. These associated soils do not have a buried organic layer.

Typical pedon of Adamsville fine sand, organic substratum; about 1,400 feet south and 2,300 feet west of the northeast corner of sec. 23, T. 38 S., R. 36 E.

A—0 to 5 inches; dark gray (10YR 4/1) fine sand; weak fine crumb structure; many fine roots; slightly acid; clear smooth boundary.
C—5 to 36 inches; very pale brown (10YR 8/2) sand; single grained; loose; few fine, medium, and coarse roots; slightly acid; clear wavy boundary.
Ob—36 to 53 inches; black (10YR 2/1) muck; moderate medium granular structure; friable; many fine roots; many distinct very pale brown (10YR 8/2) sand pockets; neutral; gradual wavy boundary.
C´—53 to 80 inches; light brownish gray (10YR 6/2) sand; single grained; loose; neutral.

The texture of the mineral part of the soil is either fine sand or sand. Reaction ranges from very strongly acid to neutral.

The A horizon has hue of 10YR, value of 3 to 5, and chroma of 1 or 2.

The C and C´ horizons have hue of 10YR, value of 5 to 8, and chroma of 1 to 3. In some pedons they do not have a dominant color and are multicolored in shades of yellow, gray, and brown.

The Ob horizon has hue of 5YR to 10YR, value of 1 to 3, and chroma of 1 or 2. It has few to many small pockets of white or gray sand.

Basinger Series

Depth class: Very deep
Drainage class: Poorly drained
Permeability: Rapid
Landform: Sloughs, low flats, depressions, and poorly defined drainageways
Parent material: Sandy marine sediments
Slope: 0 to 2 percent
Taxonomic class: Siliceous, hyperthermic Spodic Psammaquents

Basinger soils are closely associated with Adamsville, Immokalee, Myakka, Pomello, and St. Johns soils. Adamsville soils have a buried organic layer. Immokalee, Myakka, Pomello, and St. Johns soils have a Bh horizon.

Typical pedon of Basinger fine sand; about 4.5 miles northeast of Basinger, 250 feet west of Durrance Road, and 1 mile south of Eagle Island Road, NE1/4 of sec. 10, T. 35 S., R. 33 E.

A—0 to 2 inches; fine sand, very dark gray (10YR 3/1) when rubbed; weak fine granular structure; very friable; many fine roots; many uncoated light gray (10YR 7/2) sand grains; strongly acid; clear smooth boundary.
Eg—2 to 18 inches; light gray (10YR 7/2) fine sand; single grained; loose; few fine and medium roots; strongly acid; clear wavy boundary.
Bh/Eg—18 to 36 inches; light brownish gray (10YR 6/2) (Eg) and brown (10YR 5/3) (Bh) fine sand; common medium distinct dark reddish brown (5YR 3/2) weakly cemented bodies; common medium distinct very dark grayish brown (10YR 3/2) streaks along root channels; single grained; loose; few fine and medium roots; many uncoated sand grains in the Bh material; few fine faint yellowish brown (10YR 5/6) masses of iron accumulation; strongly acid; gradual wavy boundary.
C—36 to 80 inches; light brownish gray (10YR 6/2) fine sand; single grained; loose; many uncoated sand grains; strongly acid.

The combined thickness of the sand layers is more than 80 inches. Reaction ranges from extremely acid to neutral throughout.

Some pedons have an Oa horizon. It is muck and is less than 7 inches thick.

The A or Ag horizon has hue of 10YR, value of 2 to 6, and chroma of 1 or 2; or it is neutral in hue and has value of 2 to 6. It is sand, fine sand, or their mucky analogs.

The E or Eg horizon has hue of 2.5Y or 10YR, value of 5 to 8, and chroma of 1 to 4; or it is neutral in hue and has value of 5 to 8. The quantity of redoximorphic features in shades of gray, yellow, and brown ranges from none to common. The texture is sand or fine sand. Some pedons have a thin, transitional EB horizon between the E horizon and Bh/Eg horizon.

The Bh part of the Bh/Eg horizon has hue of 5YR to 10YR, value of 3 to 5, and chroma of 2 to 4. The Eg part has colors similar to those of the E horizon. The Bh/Eg horizon has few to many redoximorphic features, weakly cemented bodies, or streaks having hue of 5YR or 7.5YR, value of 2 or 3, and chroma of 3 to 8. Some pedons have a Bh horizon, which has ranges in color and texture similar to those of the Bh part of the Bh/Eg horizon. The Bh/Eg horizon is sand or fine sand.

The C horizon has hue of 5Y to 10YR, value of 5 to 8, and chroma of 1 to 4. It is sand or fine sand. In some pedons it has thin strata of loamy sand or loamy fine sand.

Bradenton Series

Depth class: Very deep
Drainage class: Poorly drained
Permeability: Moderate
Landform: Hammocks, low lying ridges, and flood plains
Parent material: Loamy marine sediments influenced by calcareous materials
Slope: 0 to 2 percent
Taxonomic class: Coarse-loamy, siliceous, superactive, hyperthermic Typic Endoaqualfs

Bradenton soils are closely associated with Ft. Drum and Parkwood soils. Ft. Drum soils have a Bk horizon. Parkwood soils have a thicker A horizon than that of the Bradenton soils.

Typical pedon of Bradenton fine sand; 8.0 miles north of the center of the town of Okeechobee and 2.5 miles west of U.S. Highway 441 on G-Bar-E Ranch, SE1/4 of SE1/4 of sec. 7, T. 36 S., R. 35 E.

A—0 to 4 inches; very dark gray (10YR 3/1) fine sand; weak fine granular structure; very friable; many fine and medium roots; salt-and-pepper appearance due to mixture of organic matter and light gray (10YR 7/1) sand grains; moderately acid; clear smooth boundary.
E—4 to 10 inches; grayish brown (10YR 5/2) fine sand; single grained; loose; many fine and medium roots; few medium distinct dark gray (10YR 4/1) areas of iron depletion; moderately acid; abrupt smooth boundary.
Btg1—10 to 19 inches; dark gray (10YR 4/1) fine sandy loam; weak medium subangular blocky structure; very friable; common fine and medium roots; few faint clay films on faces of peds and in root channels; few fine streaks of gray (10YR 5/1) sand; many fine and medium distinct yellowish brown (10YR 5/6) masses of iron accumulation; slightly acid; gradual wavy boundary.
Btg2—19 to 26 inches; gray (10YR 5/1) fine sandy loam; weak medium subangular blocky structure parting to moderate fine granular; very friable; few medium and coarse roots; few fine streaks of light gray (10YR 7/1) sand grains in root channels; sand grains coated and bridged with clay; common fine soft white (10YR 8/1) accumulations of calcium carbonate and common fine white (10YR 8/1) nodules of calcium carbonate; many fine distinct yellowish brown (10YR 5/6) and olive brown (2.5Y 4/4) areas of iron accumulation; slightly alkaline; gradual wavy boundary.
Cg1—26 to 34 inches; white (N 8/0) fine sandy loam; massive; slightly sticky and slightly plastic; few coarse roots; sand grains are coated with carbonates; few root channels; common streaks and pockets of grayish brown (10YR 5/2) fine sand; moderately alkaline; clear wavy boundary.
Cg2—34 to 70 inches; light brownish gray (2.5Y 6/2) fine sandy loam; massive; slightly sticky; many medium nodules of calcium carbonate; sand grains coated with carbonates; common streaks and pockets of light gray (10YR 7/1) fine sand; common medium distinct light olive brown (2.5Y 5/6) and few fine distinct olive brown (2.5Y 4/4) masses of iron accumulation; moderately alkaline.

The thickness of the solum ranges from 20 to 50 inches. Reaction ranges from strongly acid to neutral in the A and E horizons, from slightly acid to moderately alkaline in the Btg horizon, and from neutral to moderately alkaline in the BC and C horizons.

The A horizon has hue of 10YR, value of 2 to 4, and chroma of 1; or it is neutral in hue and has value of 2 to 4. It is fine sand, sand, loamy sand, or loamy fine sand.

The E horizon has hue of 10YR, value of 5 to 7, and chroma of 1 to 3; or it is neutral in hue and has value of 4 to 7. In some pedons it has iron accumulations in shades of brown and yellow. It is fine sand, sand, loamy sand, or loamy fine sand.

The Btg horizon has hue of 5Y to 10YR, value of 3 to 7, and chroma of 1 or 2; or it is neutral in hue and has value of 4 to 7. The quantity of redoximorphic features in shades of yellow, brown, or red ranges from none to common. The texture of the horizon is dominantly fine sandy loam or sandy loam but ranges from loamy fine sand to sandy clay loam. In some pedons the lower part of the horizon contains soft accumulations of calcium carbonate and nodules of calcium carbonate.

The BC horizon, where present, has chroma of 1 to 3 and otherwise has the same range in color as the Btg horizon. The BC horizon is loamy sand, loamy fine sand, sandy loam, fine sandy loam, or very fine sandy loam. In some pedons it contains soft accumulations of calcium carbonate and nodules of calcium carbonate.

The C horizon has hue of 10YR to 5Y, value of 5 to 8, and chroma of 1 or 2; or it is neutral in hue and has value of 5 to 8. The texture ranges from sand to sandy clay loam. In some pedons the lower part of the horizon is a mixture of shells, shell fragments, and sand.

Some pedons have a layer of soft limestone underlying the Btg, BC, or C horizon. The limestone is at a depth of 40 to 80 inches, is about 1.5 to 3.0 feet in thickness, and has few or common solution holes or fractures. In some pedons variable layers of sand to sandy clay loam mixed with shells and shell fragments are beneath the limestone.

Floridana Series

Depth class: Very deep
Drainage class: Very poorly drained
Permeability: Slow or very slow
Landform: Depressions and flood plains
Parent material: Sandy and loamy marine sediments
Slope: 0 to 1 percent
Taxonomic class: Loamy, siliceous, superactive, hyperthermic Arenic Argiaquolls

Floridana soils are closely associated with Manatee, Okeelanta, Placid, Tequesta, and Terra Ceia soils. Manatee soils have a Bt horizon of sandy loam at a depth of less than 20 inches. Okeelanta and Terra Ceia soils are organic. Placid soils are sandy throughout. Tequesta soils do not have a mollic epipedon.

Typical pedon of Floridana soil, in an area of Floridana, Riviera, and Placid soils, depressional; about 1,300 feet east and 50 feet north of the southwest corner of sec. 34, T. 34 S., R. 34 E.

A—0 to 18 inches; black (10YR 2/1) fine sand; weak fine granular structure; very friable; many fine roots; sand grains coated with organic material; slightly acid; clear smooth boundary.
Eg—18 to 38 inches; gray (10YR 6/1) fine sand; single grained; loose; few fine and medium roots; slightly acid; clear wavy boundary.
Btg—38 to 60 inches; dark grayish brown (10YR 4/2) fine sandy loam; weak coarse subangular blocky structure; slightly plastic; sand grains coated and bridged with clay; few fine distinct yellowish brown (10YR 5/6) areas of iron accumulation; slightly alkaline; gradual wavy boundary.
Cg—60 to 80 inches; grayish brown (10YR 5/2) loamy fine sand; massive; friable; slightly alkaline.

Reaction ranges from very strongly acid to moderately alkaline in all horizons.

The A horizon has hue of 10YR, value of 2 or 3, and chroma of 1 or 2; or it is neutral in hue and has value of 2. It is sand, fine sand, or mucky fine sand.

The Eg horizon has hue of 10YR, value of 4 to 7, and chroma of 1 or 2. The quantity of masses of iron accumulation in shades of yellow and brown ranges from none to common. The texture is sand or fine sand.

The Btg horizon has hue of 10YR, value of 4 to 7, and chroma of 1 or 2. The quantity of redoximorphic features in shades of brown, gray, and yellow ranges from none to common. The texture is sandy clay loam, fine sandy loam, or loamy sand.

The BCg horizon, where present, has the same range in color and texture as the Btg horizon.

The Cg horizon has hue of 10YR, value of 4 to 7, and chroma of 1 or 2. It is loamy fine sand or loamy sand. The quantity of small pockets of shells and soft calcium carbonate ranges from none to common.

Ft. Drum Series

Depth class: Very deep
Drainage class: Poorly drained
Permeability: Rapid in the A horizon and the lower parts of the Cg horizon and moderate in the Bkg horizon
Landform: Hammocks, low ridges, and flats
Parent material: Sandy marine sediments
Slope: 0 to 2 percent
Taxonomic class: Sandy, siliceous, hyperthermic Aeric Endoaquepts

Ft. Drum soils are closely associated with Bradenton and Parkwood soils. These associated soils have an argillic horizon.

Typical pedon of Ft. Drum fine sand; about 0.25 mile south of Eagle Island Road and 200 feet west of Durrance Road, NE1/4 of NE1/4 of sec. 3, T. 35 S., R. 33 E.

A1—0 to 3 inches; very dark gray (10YR 3/1) fine sand; weak fine granular structure; very friable; common fine and medium roots; many uncoated light gray (10YR 7/1) sand grains; strongly acid; gradual smooth boundary.
A2—3 to 5 inches; dark gray (10YR 4/1) fine sand; single grained; loose; common fine and medium roots; common uncoated light gray (10YR 7/1) sand grains; strongly acid; gradual wavy boundary.
A3—5 to 17 inches; brown (10YR 4/3) fine sand; single grained; loose; few fine and medium roots; many sand grains coated with organic matter, some clean sand grains; few fine faint yellowish brown (10YR 5/6) and common medium faint very pale brown (10YR 7/4) areas of iron accumulation; slightly acid; abrupt wavy boundary.
Bkg—17 to 25 inches; very pale brown (10YR 8/2) fine sandy loam; weak medium subangular blocky structure parting to moderate fine granular; very friable; common medium and coarse roots; sand grains coated with calcium carbonate; common fine and medium distinct brownish yellow (10YR 6/6) and yellow (10YR 8/6/) masses of iron accumulation; slightly alkaline; gradual smooth boundary.
Cg1—25 to 38 inches; brownish yellow (10YR 6/6) fine sand; single grained; loose; few medium roots; many coarse distinct yellowish brown (10YR 5/6) and few coarse distinct yellowish brown (10YR 5/8) and very pale brown (10YR 7/3) masses of iron accumulation; few coarse distinct light gray (10YR 7/2) areas of iron depletions; neutral; gradual wavy boundary.
Cg2—38 to 56 inches; grayish brown (2.5Y 5/2) fine sand; single grained; loose; few fine roots; many medium distinct dark yellowish brown (10YR 4/4) and yellowish brown (10YR 5/8) masses of iron accumulation; slightly acid; gradual wavy boundary.
Cg3—56 to 80 inches; gray (5Y 6/1) fine sand; single grained; loose; few fine white (10YR 8/1) calcium carbonate nodules; slightly alkaline.

The thickness of the solum ranges from 15 to 42 inches. Reaction ranges from very strongly acid to neutral in the A horizon, from moderately acid to neutral in the E horizon, and from slightly acid to moderately alkaline in the Bkg and Cg horizons.

The A horizon has hue of 10YR, value of 3 to 5, and chroma of 1 to 3. It is fine sand or sand.

The Eg horizon, where present, has hue of 10YR, value of 5 to 7, and chroma of 1 or 2. It is fine sand or sand.

The Bkg horizon has hue of 2.5Y or 10YR, value of 5 to 8, and chroma of 2 or less; or it doesn't have a dominant matrix color and is multicolored in shades of gray, brown, and yellow. The quantity of redoximorphic features in shades of brown or yellow ranges from none to common. The texture is sand, fine sand, or loamy fine sand.

The Cg horizon has hue of 10YR, 2.5Y, or 5Y; value of 5 to 7; and chroma of 1 to 6. The quantity of redoximorphic features in shades of gray, yellow, and brown ranges from none to common. The texture is sand, fine sand, or loamy fine sand.

Immokalee Series

Depth class: Deep or very deep
Drainage class: Poorly drained or very poorly drained
Permeability: Rapid or very rapid in the A and E horizons and moderate or moderately rapid in the Bh horizon
Landform: Flatwoods and depressions
Parent material: Sandy marine sediments
Slope: 0 to 2 percent
Taxonomic class: Sandy, siliceous, hyperthermic Arenic Alaquods

Immokalee soils are closely associated with Basinger, Myakka, Orsino, Pomello, and St. Johns soils. Basinger and Orsino soils do not have a spodic horizon. Myakka soils have a spodic horizon within a depth of 30 inches. Pomello soils are somewhat poorly drained or moderately well drained. St. Johns soils have an umbric epipedon.

Typical pedon of Immokalee fine sand; 7.0 miles north of the center of the town of Okeechobee and 100 yards west of U.S. Highway 441, SW1/4 of sec. 10, T. 36 S., R. 35 E.

A—0 to 6 inches; very dark gray (10YR 3/1) fine sand; salt-and-pepper appearance when dry due to mixture of organic matter and light gray (10YR 7/1) sand grains; weak fine crumb structure; very friable; many fine and medium roots; very strongly acid; clear smooth boundary.
E1—6 to 12 inches; gray (10YR 6/1) fine sand; single grained; loose; common fine and medium roots; many coarse faint gray (10YR 5/1) and few coarse faint dark gray (10YR 4/1) areas of iron depletion; very strongly acid; gradual wavy boundary.
E2—12 to 35 inches; white (10YR 8/1) fine sand; single grained; loose; few fine, medium, and coarse roots; few fine very dark gray streaks in root channels; very strongly acid; abrupt wavy boundary.
Bh1—35 to 43 inches; black (10YR 2/1) fine sand; lower 2 inches grades to dark reddish brown (5YR 2/2); weak fine granular structure; friable; common fine and medium roots; very strongly acid; clear wavy boundary.
Bh2—43 to 54 inches; dark reddish brown (5YR 3/3) fine sand; single grained; loose; few fine and medium roots; few fine distinct gray (10YR 5/1) sand lenses and pockets; very strongly acid; gradual wavy boundary.
BC—54 to 80 inches; dark brown (10YR 4/3) fine sand; single grained; loose; few fine faint dark brown (10YR 3/3), pale brown (10YR 6/3), and light gray (10YR 7/1) areas of iron accumulation and depletion; strongly acid.

Reaction ranges from extremely acid to moderately acid.

The A horizon has hue of 10YR, value of 2 to 4, and chroma of 1 or 2; or it is neutral in hue and has value of 2 to 4. Where value is less than 3, the horizon is less than 10 inches thick. The texture is sand or fine sand.

The E horizon has hue of 2.5Y or 10YR, value of 5 to 8, and chroma of 1 or 2; or it is neutral in hue and has value of 5 to 8. The quantity of redoximorphic features in shades of gray, yellow, brown, or red ranges from none to common. The E horizon is sand or fine sand. Commonly, a transitional horizon that ranges from 1/2 inch to 2 inches in thickness is between the base of the E horizon and the Bh horizon.

The Bh horizon has hue of 5YR to 10YR, value of 2 or 3, and chroma of 3 or less. It is sand, fine sand, loamy sand, or loamy fine sand. It has few or common vertical or horizontal intrusions or masses of dark gray to light gray or light brownish gray sand or fine sand.

Some pedons have a second sequum of E´ and B´h horizons. Where present, the E´ horizon has the same range in color as the E horizon and the Bh´ horizon has the same range in color as the Bh horizon.

The BC horizon has hue of 7.5YR or 10YR, value of 3 to 5, and chroma of 2 to 4. Some pedons have a BC/Bh horizon. It has a matrix color similar to that of BC horizon and has medium and coarse fragments of material from the Bh horizon. The BC horizon is fine sand or sand.

The C horizon, where present, has hue of 10YR, value of 4 to 7, and chroma of 1 to 4. The quantity of redoximorphic features in shades of brown, yellow, or gray ranges from none to common. The C horizon is fine sand or sand.

Manatee Series

Depth class: Very deep
Drainage class: Very poorly drained
Permeability: Moderate
Landform: Depressions, broad drainageways, and flood plains
Parent material: Sandy and loamy marine sediments
Slope: 0 to 2 percent
Taxonomic class: Coarse-loamy, siliceous, superactive, hyperthermic Typic Argiaquolls

Manatee soils are closely associated with Floridana, Okeelanta, Placid, Tequesta, and Terra Ceia soils. Floridana soils have a sandy epipedon that is 30 to 40 inches in thickness. Okeelanta and Terra Ceia soils are organic. Placid soils do not have an argillic horizon. Tequesta soils do not have a mollic epipedon.

Typical pedon of Manatee loamy fine sand, depressional; about 6.0 miles north of the center of the town of Okeechobee and 1.0 mile east of U.S. Highway 441 on Williamson's Ranch, NW1/4 of NW1/4 of sec. 23, T. 36 S., R. 35 E.

Ap—0 to 12 inches; black (10YR 2/1) loamy fine sand; moderate fine and medium granular structure; very friable; many fine and medium roots; 10 to 15 percent organic matter; common distinct light gray (10YR 7/1) fine sand grains; neutral; gradual wavy boundary.
A—12 to 18 inches; black (10YR 2/1) loamy fine sand; weak fine granular structure; very friable; many fine and medium roots; many light gray (10YR 7/1) fine sand grains and many medium granules of mucky fine sand; neutral; gradual wavy boundary.
Bt—18 to 24 inches; very dark grayish brown (10YR 3/2) fine sandy loam; weak coarse subangular blocky structure parting to moderate medium granular; friable; many fine and medium roots; many sand grains coated and bridged with clay; few medium distinct light gray (10YR 7/1) areas of iron depletion; slightly alkaline; clear wavy boundary.
Btg—24 to 36 inches; dark gray (10YR 4/1) fine sandy loam; weak coarse subangular blocky structure parting to moderate medium granular; friable; common fine and medium roots; few thin streaks of light gray (10YR 7/1) fine sand; many sand grains coated and bridged with clay; few fine distinct olive brown (2.5Y 4/4) areas of iron accumulation; moderately alkaline; gradual wavy boundary.
BCkg—36 to 48 inches; dark gray (10YR 4/1) fine sandy loam; weak medium subangular blocky structure; friable, slightly sticky and slightly plastic; common fine and medium roots in upper part of the horizon; common medium soft accumulations of calcium carbonate and many fine nodules of calcium carbonate; many medium faint grayish brown (10YR 5/2) areas of iron accumulation; moderately alkaline; gradual wavy boundary.
Cg—48 to 80 inches; light gray (5Y 6/1) fine sandy loam; massive; slightly sticky and slightly plastic; common medium nodules of calcium carbonate; common coarse distinct greenish gray (5G 5/1) and bluish gray (5G 6/1) areas of iron depletion; moderately alkaline; calcareous.

The thickness of the solum ranges from 30 to 60 inches. Reaction in the A horizon ranges from moderately acid to slightly alkaline. Reaction in the B and C horizons ranges from neutral to moderately alkaline.

The A horizon has hue of 10YR, value of 2 or 3, and chroma of 1; or it is neutral in hue and has value of 2 or 3. It is fine sandy loam, loamy fine sand, loamy sand, fine sand, mucky loamy sand, mucky loamy fine sand, or mucky fine sand.

The Bt horizon has hue of 10YR or 2.5Y, value of 2 to 5, and chroma of 1 or 2. The quantity of redoximorphic features in shades of gray, brown, and yellow ranges from none to common. The Bt horizon is fine sandy loam or sandy loam. In some pedons it has small pockets or streaks of fine sand or loamy fine sand.

The Btg horizon has hue of 10YR to 5Y, value of 4 to 7, and chroma of 1. The quantity of redoximorphic features in shades of gray and brown ranges from none to common. The Btg horizon is fine sandy loam, sandy loam, or loamy fine sand. In some pedons it has small pockets or streaks of fine sand or loamy fine sand.

The BCkg horizon has hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 1 or 2; or it is neutral in hue and has value of 4 to 7. The quantity of redoximorphic features in shades of gray and brown ranges from none to common. The BCkg horizon has few or common nodules of calcium carbonate. The nodules can be soft, hard, or both. Some pedons have a BCk horizon instead of a BCkg horizon. The BCk horizon has the same range in colors as the BCkg horizon. The BCkg horizon is fine sandy loam, sandy loam, or loamy fine sand.

The Cg horizon has hue of 10YR to 5GY, value of 4 to 7, and chroma of 1 or 2; or it is neutral in hue and has value of 2 or 3. The quantity of accumulations or nodules of calcium carbonate ranges from none to common. In some pedons, the Cg horizon contains streaks of sandy clay loam, contains few to many shell fragments, or is underlain by layers of shell fragments. The texture of the Cg horizon ranges from fine sand to sandy loam.

Myakka Series

Depth class: Very deep
Drainage class: Poorly drained
Permeability: Rapid in the A and E horizons and moderate or moderately rapid in the Bh horizon
Landform: Flatwoods
Parent material: Sandy marine sediments
Slope: 0 to 2 percent
Taxonomic class: Sandy, siliceous, hyperthermic Aeric Alaquods

Myakka soils are closely associated with Adamsville, Basinger, Immokalee, Pomello, and St. Johns soils. Adamsville and Basinger soils do not have a spodic horizon. Immokalee soils have A and E horizons with a combined thickness of more than 30 inches. Pomello soils are better drained than the Myakka soils. St. Johns soils have an umbric epipedon.

Typical pedon of Myakka fine sand; about 1,800 feet north and 1,300 feet east of the southwest corner of sec. 22, T. 35 S., R. 34 E.

A—0 to 4 inches; fine sand, black (10YR 2/1) crushed; weak fine granular structure; very friable; common fine and medium roots; very strongly acid; clear smooth boundary.
E1—4 to 16 inches; gray (10YR 6/1) fine sand; single grained; loose; common fine roots; very strongly acid; gradual wavy boundary.
E2—16 to 27 inches; white (10YR 8/1) fine sand; single grained; loose; strongly acid; abrupt wavy boundary.
Bh—27 to 46 inches; mixed very dark grayish brown (10YR 3/2) and black (10YR 2/1) fine sand; weak fine granular structure; very friable; sand grains coated with organic matter; very strongly acid; gradual wavy boundary.
C/B—46 to 80 inches; brown (10YR 5/3) fine sand; single grained; loose; moderately acid.

The solum is more than 30 inches thick. Reaction ranges from extremely acid to slightly acid throughout.

The A horizon, when crushed, has hue of 10YR, value of 2 to 4, and chroma of 1. Uncrushed, it has a salt-and-pepper appearance. It is sand or fine sand.

The E horizon has hue of 10YR, value of 5 to 8, and chroma of 1 or 2. In some pedons it has small pockets and streaks of gray sand. The E horizon is sand or fine sand. The combined thickness of the A and E horizons ranges from 20 to 30 inches.

The Bh horizon has hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 3. The quantity of medium to coarse, vertical or horizontal, tongues or pockets of gray or light gray sand ranges from none to common. The Bh horizon is sand, fine sand, or loamy fine sand.

Some pedons have a second sequum of E´ and Bh´ horizons. Where present, the E´ horizon has the same range in color and texture as the E horizon and the Bh´ horizon has the same range in color and texture as the Bh horizon.

The C part of the C/B horizon has hue of 10YR, value of 3 to 5, and chroma of 2 or 3. The B part has the same range in color as the Bh horizon. The C/B horizon is fine sand or sand.

The C horizon, where present, has hue of 10YR, value of 4 to 7, and chroma of 1 to 3. It is sand or fine sand.

Okeelanta Series

Depth class: Very deep
Drainage class: Very poorly drained
Permeability: Rapid
Landform: Large freshwater marshes and small depressions
Parent material: Hydrophytic plant remains over marine sands
Slope: 0 to 2 percent
Taxonomic class: Sandy or sandy-skeletal, siliceous, euic, hyperthermic Terric Medisaprists

Okeelanta soils are closely associated with Floridana, Manatee, Placid, Tequesta, and Terra Ceia soils. Floridana, Manatee, Placid, and Tequesta soils are of mineral origin. Terra Ceia soils have organic horizons with a combined thickness of more than 51 inches.

Typical pedon of Okeelanta muck; about 1,200 feet south and 2,100 feet east of the northwest corner of sec. 30, T. 36 S., R. 36 E.

Oa1—0 to 3 inches; black (10YR 2/1) muck; moderate medium granular structure; very friable; many fine and medium roots; 30 percent fiber unrubbed, 10 percent rubbed; slightly acid; clear smooth boundary.
Oa2—3 to 24 inches; very dark brown (10YR 2/2) muck; weak coarse subangular blocky structure; very friable; many fine and medium roots; 15 percent fiber unrubbed, 5 percent rubbed; slightly acid; gradual wavy boundary.
Oa3—24 to 28 inches; very dark brown (10YR 2/2) muck; massive; friable; 10 percent fiber unrubbed, 5 percent rubbed; about 15 percent mineral content; slightly acid; clear wavy boundary.
C—28 to 80 inches; gray (10YR 5/1) sand; single grained; loose; many coarse faint gray (10YR 6/1) areas of iron depletion and few coarse faint dark gray (10YR 4/1) areas of iron accumulation; slightly acid.

Reaction ranges from moderately acid to moderately alkaline. The combined thickness of the organic layers ranges from 16 to 50 inches.

The Oa horizon has hue of 5YR to 10YR, value of 2 to 4, and chroma of 1 to 3. The content of fiber ranges from 5 to 50 percent unrubbed and from 3 to 15 percent rubbed. In some pedons the surface layer is composed of hemic materials.

The C horizon has hue of 10YR, value of 4 to 7, and chroma of 2 or less. It is sand, fine sand, or loamy sand. The quantity of shell fragments ranges from none to many.

Orsino Series

Depth class: Very deep
Drainage class: Moderately well drained
Permeability: Very rapid
Landform: Moderately high ridges and knolls
Parent material: Sandy marine or eolian deposits
Slope: 0 to 2 percent
Taxonomic class: Hyperthermic, uncoated Spodic Quartzipsamments

Orsino soils are closely associated with Immokalee and Pomello soils. These associated soils have a spodic horizon.

Typical pedon of Orsino fine sand; about 2,000 feet west and 200 feet south of the northeast corner of sec. 3, T. 34 S., R. 35 E.

A—0 to 4 inches; dark gray (10YR 4/1) fine sand; weak fine granular structure; very friable; many fine roots; very strongly acid; clear wavy boundary.
E—4 to 12 inches; light gray (10YR 7/1) fine sand; single grained; loose; few fine roots; very strongly acid; abrupt irregular boundary.
B/E and Bh—12 to 14 inches; dark reddish brown (5YR 3/3) fine sand (Bh); common light gray (10YR 7/1) 1- to 5-inch diameter tongues of fine sand E material; weak fine granular structure; very friable; few fine roots; few or common pockets of yellowish brown (10YR 5/6) and pale brown (10YR 6/3) areas of iron accumulation; very strongly acid; clear irregular boundary.
Bw1—14 to 24 inches; brown (10YR 5/3) fine sand; single grained; loose; strongly acid; gradual irregular boundary.
Bw2—24 to 45 inches; very pale brown (10YR 7/3) fine sand; single grained; loose; few fine distinct brownish yellow (10YR 6/6) and reddish yellow (7.5YR 6/6) areas of iron accumulation; strongly acid; gradual wavy boundary.
C—45 to 80 inches; light gray (10YR 7/1) fine sand; single grained; loose; few fine distinct brownish yellow (10YR 6/6) and yellow (10YR 7/6) areas of iron accumulation; strongly acid.

The thickness of the solum is 40 inches or more. Reaction ranges from extremely acid to moderately acid. The content of silt plus clay in the 10- to 40-inch control section is less than 5 percent.

The A horizon has hue of 10YR, value of 4 to 6, and chroma of 1 or 2. It commonly has a salt-and-pepper appearance. It is sand or fine sand.

The E horizon has hue of 2.5Y or 10YR, value of 6 to 8, and chroma of 1 or 2. It is sand or fine sand.

The E part of the B/E and Bh horizon has the same range in color as the E horizon. The Bh parts of the horizon have hue of 5YR to 10YR, value of 2 to 4, and chroma of 2 to 4. They occur at the contact of the E and B horizons as discontinuous layers or lenses that range from 1/4 inch to 2 inches in thickness. The texture is sand or fine sand.

The Bw horizon has hue of 7.5YR or 10YR, value of 4 to 7, and chroma of 3 to 8.

The C horizon has hue of 10YR, value of 6 to 8, and chroma of 1 to 4. The quantity of redoximorphic features in shades of gray, red, yellow, or brown ranges from none to common.

Parkwood Series

Depth class: Very deep
Drainage class: Poorly drained
Permeability: Rapid, except slow or moderately slow in the upper part of the B2tca horizon
Landform: Hammocks and poorly defined drainageways
Parent material: Marine sediments
Slope: 0 to 2 percent
Taxonomic class: Coarse-loamy, siliceous, superactive, hyperthermic Mollic Endoaqualfs

Parkwood soils are closely associated with Bradenton and Ft. Drum soils. These associated soils do not have a thick A horizon.

Typical pedon of Parkwood fine sand; about 3/8 mile north of the intersection of U.S. Highway 98 and the entrance to Basswood Estates, 3.0 miles northwest of the town of Okeechobee, NW1/4 of SW1/4 of sec. 6, T. 37 S., R. 35 E.

A1—0 to 6 inches; fine sand, very dark gray (10YR 3/1) crushed; weak fine crumb structure; friable; many fine and coarse roots; salt-and-pepper appearance when uncrushed due to mixture of organic matter and gray sand grains; calcareous in lower 2 inches; neutral; gradual wavy boundary.
A2—6 to 9 inches; black (10YR 2/1) fine sand; weak fine granular structure; friable, nonsticky; many fine to coarse roots; calcareous; moderately alkaline; clear wavy boundary.
B2tca—9 to 22 inches; gray (10YR 5/1) fine sandy loam; moderate medium granular structure; friable, nonsticky; few to many fine and coarse roots; calcareous; few fine faint yellowish brown (10YR 5/6) areas of iron accumulations; moderately alkaline; gradual wavy boundary.
B31ca—22 to 39 inches; gray (10YR 5/1) loamy fine sand; weak medium granular structure; friable; few fine roots; sand grains coated and bridged with clay; many root channels filled with white (N 8/0) calcium; lower part of the horizon has thin pockets or lenses of white (N 8/0) fragmental carbonatic material; calcareous; many coarse distinct yellowish brown (10YR 5/6 and 5/8) areas of iron accumulation; moderately alkaline; gradual wavy boundary.
B32ca—39 to 52 inches; gray (10YR 6/1) loamy fine sand; weak fine granular structure; friable; few fine roots; root channels filled with carbonates; calcareous; many coarse distinct yellowish brown (10YR 5/8) areas of iron accumulation; moderately alkaline; gradual wavy boundary.
Cg—52 to 80 inches; light gray (N 7/0) loamy fine sand; single grained; loose; few small semihard carbonate nodules; few fine distinct yellowish brown (10YR 5/6) areas of iron accumulation; moderately alkaline.

The thickness of the solum ranges from 35 to 65 inches. Reaction in the A horizon ranges from neutral to moderately alkaline. Reaction in the B and C horizons is slightly alkaline or moderately alkaline.

The A horizon has hue of 5Y to 10YR, value of 2 or 3, and chroma of 1 or 2; or it is neutral in hue and has value of 1 or 2. It is fine sand, loamy fine sand, or sandy loam. Some pedons have a thin, continuous A2 horizon. Where present, it has hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 1 or 2 or is neutral in hue and has value of 4 to 6.

The Bt horizon has hue of 2.5Y or 10YR, value of 4 to 8, and chroma of 1 or 2. It has few to many redoximorphic features in shades of yellow and brown. It is sandy loam or fine sandy loam. In some pedons it has thin subhorizons of sandy clay loam, but the weighted content of clay is less than 18 percent in the upper 20 inches. Common or many secondary carbonate accumulations are present in old root channels and occur as pockets or lenses. In some pedons the horizon has fragments of shell.

The B3 horizon has the same range in characteristics as the Bt horizon, except that the range in texture includes loamy fine sand.

The Cg horizon has hue of 5Y to 10YR, value of 4 to 7, and chroma of 1 or 2; or it is neutral in hue and has value of 5 to 7. It is loamy fine sand, fine sand, or sand. In some pedons it contains shell fragments.

Pineda Series

Depth class: Deep or very deep
Drainage class: Poorly drained
Permeability: Rapid over slow or very slow
Landform: Sloughs and poorly defined drainageways
Parent material: Marine sediments
Slope: 0 to 2 percent
Taxonomic class: Loamy, siliceous, active, hyperthermic Arenic Glossaqualfs

Pineda soils are closely associated with Riviera, Valkaria, and Wabasso soils. Riviera soils do not have a Bw horizon. Valkaria soils are sandy throughout. Wabasso soils have a spodic horizon.

Typical pedon of Pineda fine sand; about 100 feet north and 1,400 feet east of the southwest corner of sec. 25, T. 36 S., R. 35 E.

A—0 to 3 inches; very dark grayish brown 10YR (3/2) fine sand; single grained; loose; many fine roots; moderately acid; clear smooth boundary.
E—3 to 6 inches; dark gray (10YR 4/1) fine sand; single grained; loose; many fine roots; moderately acid; clear wavy boundary.
Bw1—6 to 12 inches; yellowish brown (10YR 5/6) fine sand; single grained; loose; many fine roots; many fine yellowish red (5YR 5/8) masses of iron accumulation; moderately acid; gradual wavy boundary.
Bw2—12 to 21 inches; strong brown (7.5YR 5/8) fine sand; single grained; loose; few fine roots; common medium distinct yellowish red (5YR 5/8) areas of iron accumulation; moderately acid; clear wavy boundary.
Bw3—21 to 34 inches; pale brown (10YR 6/3) fine sand; single grained; loose; slightly acid; clear wavy boundary.
E´—34 to 38 inches; light gray (10YR 7/2) fine sand; single grained; loose; neutral; abrupt irregular boundary.
B/E—38 to 52 inches; olive gray (5Y 5/2) sandy loam (Btg); weak coarse subangular blocky structure; friable; tongues of light gray (10YR 7/2) material from the E´ horizon; common medium distinct olive brown (2.5Y 4/4) and olive (5Y 5/3) areas of iron accumulation; neutral; gradual wavy boundary.
Cg—52 to 80 inches; gray (5Y 5/1) sandy loam; massive; very friable; slightly alkaline.

The thickness of the soil ranges from 40 to 80 inches. The combined thickness of the A, E, Bw, and E´ horizons ranges from 20 to 40 inches. Reaction ranges from strongly acid to neutral in the A, E, Bw, and E´ horizons, from strongly acid to moderately alkaline in the Btg horizon, where present, and from moderately acid to moderately alkaline in the Cg horizon.

The A horizon has hue of 10YR, value of 2 to 5, and chroma of 1 or 2. It is sand or fine sand.

The E horizon, where present, has hue of 10YR, value of 5 to 7, and chroma of 1 or 2. The quantity of redoximorphic features in shades of yellow and brown ranges from none to common. The texture is sand or fine sand.

The Bw horizon has hue of 10YR or 7.5YR, value of 4 to 8, and chroma of 3 to 8. It is sand or fine sand.

The E´ horizon and E part of the B/E horizon have hue of 10YR, value of 5 to 8, and chroma of 2 to 4. They are sand or fine sand.

The B/E horizon has vertical sandy intrusions or tongues of the overlying albic materials (E). The tongues are about 5 centimeters or more in length and width and make up more than 15 percent of the B/E horizon. The Btg part of the B/E horizon has hue of 5BG to 10YR, value of 4 to 7, and chroma of 1 or 2. The quantity of redoximorphic features in shades of yellow or brown ranges from none to common. The B/E horizon is sandy loam, fine sandy loam, or sandy clay loam.

The Btg horizon, where present, has colors and textures similar to those of the Btg part of the B/E horizon.

The C horizon has hue of 5Y to 10YR, value of 5 to 8, and chroma of 1 or 2. It is sand, fine sand, loamy sand, sandy loam, or sandy clay loam. In some pedons it has shell fragments in the lower part.

Placid Series

Depth class: Very deep
Drainage class: Very poorly drained
Permeability: Rapid
Landform: Depressions, low flats, flood plains, and poorly defined drainageways on uplands
Parent material: Sandy marine sediments
Slope: 0 to 2 percent
Taxonomic class: Sandy, siliceous, hyperthermic Typic Humaquepts

Placid soils are closely associated with Floridana, Manatee, Okeelanta, Tequesta, and Terra Ceia soils. Floridana and Manatee soils have an argillic horizon. Okeelanta and Terra Ceia soils are organic. Tequesta soils have a histic epipedon.

Typical pedon of Placid fine sand, in an area of Floridana, Riviera, and Placid soils, depressional; about 1.5 miles north of the Okeechobee city limits, 2.25 miles west of U.S. Highway 441, and 0.5 mile south of Highway 68, NW1/4 of sec. 32, T. 35 S., R. 35 E.

A1—0 to 10 inches; black (10YR 2/1) fine sand; moderate medium crumb structure; friable; many fine and medium roots; few root channels; few small pockets (stripped matrix) of dark gray (10YR 4/1) and gray (10YR 5/1) fine sand; very strongly acid; gradual smooth boundary.
A2—10 to 20 inches; very dark gray (10YR 3/1) fine sand; weak fine crumb structure; very friable; many fine and medium roots; few root channels; narrow tongues and small pockets of black (10YR 2/1), dark gray (10YR 4/1), and very dark grayish brown (10YR 3/2) material in lower part of the horizon; very strongly acid; clear wavy boundary.
Cg1—20 to 30 inches; gray (10YR 5/1) fine sand; single grained; loose; few fine roots; few fine faint dark gray (10YR 4/1) and very dark gray (10YR 3/1) areas of iron accumulation; strongly acid; gradual wavy boundary.
Cg2—30 to 48 inches; grayish brown (10YR 5/2) fine sand; single grained; loose; common medium faint very dark gray (10YR 3/1) and very dark grayish brown (10YR 3/2) areas of iron accumulation; strongly acid; gradual wavy boundary.
Cg3—48 to 80 inches; dark grayish brown (10YR 4/2) fine sand; single grained; loose; few fine faint very dark gray (10YR 3/1) areas of iron accumulation; strongly acid.

The soil is more than 80 inches thick. Reaction in the A horizon ranges from extremely acid to strongly acid. Reaction in the underlying horizons ranges from extremely acid to slightly acid.

The A horizon dominantly has hue of 7.5YR or 10YR, value of 2 or 3, and chroma of 3 or less. In some pedons it has value of 4 in the lower 3 to 6 inches. The A horizon is sand, fine sand, loamy sand, loamy fine sand, or their mucky analogs. In some pedons it has up to 3 inches of muck on the surface.

The Cg horizon has hue of 10YR to 5Y, value of 4 to 8, and chroma of 3 or less. It is sand, fine sand, loamy sand, or loamy fine sand. The quantity of redoximorphic features in shades of yellow or brown ranges from none to common.

Pomello Series

Depth class: Very deep
Drainage class: Moderately well drained or somewhat poorly drained
Permeability: Moderately rapid
Landform: Ridges and knolls
Parent material: Sandy marine sediments
Slope: 0 to 5 percent
Taxonomic class: Sandy, siliceous, hyperthermic Oxyaquic Alorthods

Pomello soils are closely associated with Basinger, Immokalee, Myakka, Orsino, and St. Johns soils. Basinger and Orsino soils do not have a spodic horizon. Immokalee, Myakka, and St. Johns soils are poorly drained and are in the lower landscape positions.

Typical pedon of Pomello fine sand, 0 to 5 percent slopes; about 2.5 miles west of U.S. Highway 441 on County Road 68 and 200 feet north of the southwest corner of sec. 29, T. 35 S., R. 35 E.

A—0 to 4 inches; gray (10YR 6/1) fine sand; weak fine granular structure; very friable; many fine and medium roots; very strongly acid; clear wavy boundary.
E—4 to 42 inches; white (10YR 8/1) fine sand; single grained; loose; common fine and medium roots; few dark gray (10YR 4/1) strata in root channels; very strongly acid; abrupt wavy boundary.
Bh1—42 to 47 inches; dark reddish brown (5YR 2/2), black (5YR 2/1), and dark reddish brown (2.5Y 3/4) fine sand; weakly cemented; massive; friable; common fine and medium roots; sand grains coated with organic matter; very strongly acid; clear wavy boundary.
Bh2—47 to 54 inches; dark reddish brown (5YR 3/3) fine sand; few coarse faint dark brown (7.5YR 3/2) iron accumulations; massive; friable; few medium roots; sand grains coated with organic matter; very strongly acid; clear wavy boundary.
Bw—54 to 66 inches; brown (10YR 4/3) fine sand; single grained; loose; common medium faint dark brown (10YR 3/3) areas of iron accumulation; very strongly acid; clear wavy boundary.
Cg—66 to 80 inches; light gray (10YR 7/2) sand; single grained; loose; very strongly acid.

The thickness of the solum is 40 inches or more. Reaction ranges from very strongly acid to moderately acid.

The A horizon has hue of 2.5Y or 10YR, value of 4 to 7, and chroma of 2 or less. It is sand or fine sand.

The E horizon has hue of 2.5Y or 10YR, value of 5 to 8, and chroma of 2 or less. It is sand or fine sand.

The Bh horizon has hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 3. In some pedons streaks or tongues of the E horizon extend into the Bh horizon. The Bh horizon is sand or fine sand.

The Bw horizon, where present, has hue of 5YR to 10YR and value and chroma of 3 to 6. It is sand or fine sand.

The C horizon has hue of 2.5Y or 10YR, value of 5 to 7, and chroma of 1 to 4. It is sand, fine sand, or coarse sand.

In some pedons a B´h horizon is present instead of the C horizon. The B´h horizon has the same range in texture and color as the Bh horizon and is as much as 14 inches thick.

Riviera Series

Depth class: Deep
Drainage class: Poorly drained
Permeability: Rapid in the A horizon and slow or very slow in the B horizon
Landform: Broad, low flats (sloughs) and depressions
Parent material: Marine sediments
Slope: 0 to 2 percent
Taxonomic class: Loamy, siliceous, active, hyperthermic Arenic Glossaqualfs

Riviera soils are closely associated with Pineda, Valkaria, and Wabasso soils. Pineda and Valkaria soils have a high-chroma Bw horizon. Wabasso soils have a spodic horizon.

Typical pedon of Riviera fine sand; about 2,000 feet north and 1,600 feet east of the southwest corner of sec. 19, T. 36 S., R. 36 E.

A1—0 to 3 inches; black (10YR 2/1) fine sand; weak fine crumb structure; very friable; common fine and medium roots; very strongly acid; clear smooth boundary.
A2—3 to 7 inches; gray (10YR 5/1) fine sand; single grained; loose; common fine and medium roots; strongly acid; clear smooth boundary.
E1—7 to 12 inches; light brownish gray (10YR 6/2) fine sand; single grained; loose; common fine roots; common fine and medium distinct brownish yellow (10YR 6/6) areas of iron accumulation; moderately acid; gradual smooth boundary.
E2—12 to 16 inches; light gray (10YR 7/2) fine sand; single grained; loose; moderately acid; gradual smooth boundary.
E3—16 to 22 inches; very pale brown (10YR 8/2) fine sand; single grained; loose; common coarse distinct brownish yellow (10YR 6/6) areas of iron accumulation; moderately acid; abrupt wavy boundary.
Bt/E—22 to 27 inches; light gray (10YR 7/2) fine sandy loam (Bt) and very pale brown (10YR 8/2) tongues of sand (E); weak coarse subangular blocky structure; slightly sticky; sand grains coated and bridged with clay; neutral; strongly acid; clear wavy boundary.
Btg—27 to 40 inches; 40 percent light gray (10YR 7/1) and 60 percent gray (10YR 6/1) fine sandy loam; weak fine subangular blocky structure; friable; common coarse distinct yellowish brown (10YR 5/8) areas of iron accumulation; slightly alkaline; clear smooth boundary.
IIC—40 to 80 inches; grayish brown (2.5Y 5/2) fine sandy loam; massive; slightly sticky; slightly alkaline.

The thickness of the solum ranges from 35 to 65 inches.

The A horizon has hue of 10YR, value of 2 to 5, and chroma of 1 or 2. It is sand or fine sand. Reaction ranges from very strongly acid to neutral.

The E horizon has hue of 10YR, value of 5 to 8, and chroma of 1 or 2. It is sand or fine sand. Reaction ranges from strongly acid to neutral.

The Bt/E horizon has hue of 5Y to 10YR, value of 3 to 7, and chroma of 1 or 2. The texture of the B part is sandy loam, fine sandy loam, or sandy clay loam. The tongues and interfingering material from the E horizon are sand or fine sand. Reaction of the Bt/E horizon ranges from slightly acid to moderately alkaline.

The Btg horizon has hue of 5Y to 10YR, value of 3 to 7, and chroma of 1 or 2. It has few to many redoximorphic features in shades of brown and yellow. Reaction ranges from slightly acid to moderately alkaline. The Btg horizon is fine sandy loam, sandy loam, or sandy clay loam.

The IIC horizon ranges from fine sandy loam to either a mixture of sand and shell fragments or to a mixture of shell fragments and marl.

St. Johns Series

Depth class: Very deep
Drainage class: Poorly drained or very poorly drained
Permeability: Moderate
Landform: Broad flats and depressions
Parent material: Marine sediments
Slope: 0 to 2 percent
Taxonomic class: Sandy, siliceous, hyperthermic Typic Alaquods

St. Johns soils are closely associated with Basinger, Immokalee, Myakka, and Pomello soils. Basinger soils do not have a spodic horizon. Immokalee, Myakka, and Pomello soils do not have a thick, dark A horizon.

Typical pedon of St. Johns fine sand; about 1.75 miles north of State Road 68 and 4.0 miles southeast of Ft. Drum, SE1/4 of sec. 31, T. 34 S., R. 36 E.

A1—0 to 10 inches; black 10YR (2/1) fine sand; weak fine crumb structure; friable; many fine, medium, and coarse roots; many clean sand grains; about 15 percent organic matter; very strongly acid; clear smooth boundary.
A2—10 to 14 inches; very dark gray (10YR 3/1) sand; single grained; loose; common fine roots; many clean light-colored sand grains; very strongly acid; gradual smooth boundary.
E—14 to 22 inches; light gray (10YR 6/1) sand; few tongues and small pockets of dark gray (10YR 4/1) sand; single grained; loose; few fine and medium roots; very strongly acid; abrupt wavy boundary.
Bh1—22 to 34 inches; black (10YR 2/1) sand; massive; firm; common fine, medium, and coarse roots; few small pockets of light gray (10YR 6/1) sand grains; very strongly acid; clear wavy boundary.
Bh2—34 to 42 inches; dark reddish brown (5YR 2/2) sand; common very dark brown (10YR 2/2) and dark reddish brown (5YR 3/3) pockets in the lower few inches; massive; friable; few fine roots and pores; few medium black (10YR 2/1) concretions or firm fragments; very strongly acid; gradual wavy boundary.
BC—42 to 66 inches; dark brown (7.5YR 3/2) sand; single grained; loose; few fine roots; common medium faint very dark brown (7.5YR 2/2 and 2/4), dark grayish brown (10YR 4/2), and dark yellowish brown (10YR 3/4 and 4/4) areas of iron accumulation and depletion; very strongly acid; gradual wavy boundary.
C—66 to 80 inches; pale brown (10YR 6/3) sand; single grained; loose; very strongly acid.

The A horizon is less than 30 inches thick. Reaction ranges from extremely acid to strongly acid throughout the profile. Texture is sand or fine sand in all horizons, except the Bh horizon, which is loamy sand or loamy fine sand in some pedons.

The A horizon has hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 or 2; or it is neutral in hue and has value of 2.

The E horizon has hue of 10YR, value of 5 to 7, and chroma of 1 or 2; or it is neutral in hue and has value of 5 to 7.

The Bh horizon has hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 or 2; or it is neutral in hue and has value of 2. Some pedons have a continuous layer about 1 inch thick at the top of the Bh horizon. This layer contains about 4 percent or more organic matter. In some pedons the Bh horizon has vertical or horizontal tongues or masses or both of gray or light gray sand.

The BC horizon has hue of 7.5YR or 10YR, value of 3 to 6, and chroma of 2 to 4.

Some pedons have a second sequum of E´ and Bh´ horizons. Where present, the E´ horizon has colors similar to those of the E horizon and the Bh´ horizon has colors similar to those of the Bh horizon.

The C horizon has hue of 10YR, value of 4 to 7, and chroma of 1 to 3.

Tequesta Series

Depth class: Very deep
Drainage class: Very poorly drained
Permeability: Rapid over moderately slow
Landform: Flood plains and depressional areas
Parent material: Hydrophytic plant remains over marine sediments
Slope: 0 to 2 percent
Taxonomic class: Loamy, siliceous, active, hyperthermic Arenic Glossaqualfs

Tequesta soils are closely associated with Floridana, Manatee, Okeelanta, Placid, and Terra Ceia soils. Floridana, Manatee, and Placid soils do not have a histic epipedon. Okeelanta and Terra Ceia soils are organic.

Typical pedon of Tequesta muck in an area of Manatee, Floridana, and Tequesta soils, frequently flooded; about 2,700 feet north and 800 feet west of the southeast corner of sec. 33, T. 36 S., R. 33 E.

Oa—0 to 10 inches; black (10YR 2/1) muck; 30 percent fiber unrubbed, 10 percent rubbed; moderate medium granular structure; friable; many fine and medium roots; few clean sand grains; slightly acid; clear smooth boundary.
A1—10 to 18 inches; black (10YR 2/1) fine sand; weak fine granular structure; friable; many fine and medium roots; slightly acid; gradual wavy boundary.
A2—18 to 33 inches; light brownish gray (10YR 6/2) fine sand; single grained; loose; neutral; clear wavy boundary.
Btg—33 to 62 inches; dark gray (10YR 4/1) fine sandy loam; weak medium subangular blocky structure; slightly sticky; common medium faint dark grayish brown (10YR 4/2) areas of iron accumulation; slightly alkaline; gradual wavy boundary.
IIC—62 to 80 inches; light gray (10YR 7/2) fine sand; single grained; loose; neutral.

The solum is 30 inches or more in thickness. Reaction ranges from strongly acid to neutral in the Oa and A horizons and from slightly acid to moderately alkaline in the B and IIc horizons.

The Oa horizon has hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 4; or it is neutral in hue and has value of 2.

The A1 horizon has hue of 10YR, value of 2 to 4, and chroma of 1. The A2 horizon has hue of 10YR, value of 5 or 6, and chroma of 1 or 2; or it is neutral in hue and has value of 4 to 6. The quantity of redoximorphic features in shades of gray and brown ranges from none to common. The texture is sand or fine sand.

The Btg horizon has hue of 10YR, value of 4 to 6, and chroma of 1 or 2. In some pedons tongues of material from the A2 horizon extend into the Btg horizon. The Btg horizon is sandy loamy, fine sandy loam, or sandy clay loam.

The IIC horizon has hue of 10YR, value of 4 to 7, and chroma of 1 or 2. It is sand, fine sand, or loamy sand. In some pedons it contains shell fragments.

Terra Ceia Series

Depth class: Very deep
Drainage class: Very poorly drained
Permeability: Rapid
Landform: Freshwater marshes and depressions
Parent material: Hydrophytic plant remains over marine sediments
Slope: 0 to 1 percent
Taxonomic class: Euic, hyperthermic Typic Medisaprists

Terra Ceia soils are closely associated with Floridana, Manatee, Okeelanta, Placid, and Tequesta soils. Floridana, Manatee, Placid, and Tequesta soils are mineral soils. Okeelanta soils have sandy mineral material within a depth of 50 inches.

Typical pedon of Terra Ceia muck; about 1,600 feet east and 1,700 feet north of the southwest corner of sec. 23, T. 37 S., R. 35 E.

Oa1—0 to 8 inches; dark reddish brown (5YR 2/2) muck; 10 percent fiber unrubbed, 2 percent rubbed; moderate coarse subangular blocky structure; friable; many fine and medium roots; slightly acid; clear wavy boundary.
Oa2—8 to 53 inches; black (10YR 2/1) muck; 45 percent fiber unrubbed, 5 percent rubbed; weak coarse subangular blocky structure; friable; many fine and medium roots; neutral; gradual wavy boundary.
IIC1—53 to 60 inches; black (10YR 2/1) fine sand; single grained; loose; common tongues and small pockets of black (10YR 2/1) muck; neutral; gradual smooth boundary.
IIC2—60 to 80 inches; dark gray (10YR 4/1) fine sand; single grained; loose; black and very dark gray streaks in old root channels; neutral.

Reaction ranges from moderately acid to moderately alkaline. The thickness of the organic matter is more than 51 inches.

The Oa horizon has hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 or 2; or it is neutral in hue and has value of 2. The content of fiber ranges from 5 to 30 percent unrubbed and from 3 to 15 percent rubbed. The content of mineral material ranges from 5 to 20 percent. In some pedons the surface layer is composed of hemic materials.

The IIC horizon, where present, has hue of 10YR, value of 2 to 6, and chroma of 2 or less. It is sand, fine sand, or loamy sand. In some pedons it contains shell fragments.

Valkaria Series

Depth class: Very deep
Drainage class: Poorly drained
Permeability: Rapid
Landform: Sloughs, depressions, and poorly defined drainageways
Parent material: Marine sands
Slope: 0 to 2 percent
Taxonomic class: Siliceous, hyperthermic Spodic Psammaquents

Valkaria soils are closely associated with Pineda, Riviera, and Wabasso soils. These associated soils have a Bt horizon.

Typical pedon of Valkaria fine sand; about 2,050 feet north and 800 feet west of the southeast corner of sec. 20, T. 34 S., R. 34 E.

Ap—0 to 6 inches; very dark gray (10YR 3/1) fine sand; weak fine crumb structure; friable; many fine roots; slightly acid; clear smooth boundary.
E—6 to 19 inches; grayish brown (10YR 5/2) fine sand; single grained; loose; many fine roots; neutral; clear wavy boundary.
Bw1—19 to 30 inches; brownish yellow (10YR 6/8) fine sand; single grained; loose; few fine roots; common medium distinct dark yellowish brown (10YR 4/6) areas of iron accumulation; slightly alkaline; gradual wavy boundary.
Bw2—30 to 46 inches; yellowish brown (10YR 5/4) fine sand; single grained; loose; few fine roots; few coarse distinct very pale brown (10YR 7/4) and common medium distinct dark grayish brown (10YR 4/2) and dark yellowish brown (10YR 4/4) areas of iron accumulation and depletion; slightly alkaline; clear wavy boundary.
C—46 to 80 inches; white (10YR 8/1) fine sand; single grained; loose; slightly alkaline.

The thickness of the solum ranges from 35 to more than 60 inches. The texture of the soil is sand or fine sand. Reaction ranges from strongly acid to moderately alkaline.

The A or Ap horizon has hue of 10YR, value of 2 to 4, and chroma of 1 or 2.

The E horizon has hue of 10YR, value of 5 to 7, and chroma of 1 or 2. The quantity of redoximorphic features in shades of gray, yellow, and brown ranges from none to common.

The Bw horizon has hue of 10YR or 7.5YR, value of 5 to 7, and chroma of 3 to 8. It has few to many redoximorphic features in shades of brown, red, and yellow.

The C horizon has hue of 10YR, value of 4 to 8, and chroma of 1 or 2.

Wabasso Series

Depth class: Deep or very deep
Drainage class: Poorly drained or very poorly drained
Permeability: Rapid in the A and E horizons and slow or very slow in the Bt horizon
Landform: Flatwoods, flood plains, and depressions
Parent material: Sandy and loamy marine sediments
Slope: 0 to 2 percent
Taxonomic class: Sandy, siliceous, hyperthermic Alfic Alaquods

Wabasso soils are closely associated with Pineda, Riviera, and Valkaria soils. These associates soils do not have a spodic horizon.

Typical pedon of Wabasso fine sand; about 300 feet north of Airport Road and 2.5 miles northwest of the center of the town of Okeechobee, NE1/4 of NE1/4 of sec. 7, T. 37 S., R. 35 E.

A—0 to 4 inches; very dark gray (10YR 3/1) fine sand; salt-and-pepper appearance due to mixture of light gray sand grains; weak fine crumb structure; very friable; many fine and medium roots; very strongly acid; clear smooth boundary.
E—4 to 16 inches; gray (10YR 5/1) fine sand; single grained; loose; common fine and medium roots; strongly acid; abrupt wavy boundary.
Bh—16 to 28 inches; dark reddish brown (5YR 2/2) fine sand; massive; friable; few fine and medium roots; reddish brown (5YR 4/4) masses of iron accumulation and gray iron depletions lining pores along old root channels; strongly acid; gradual smooth boundary.
E´—28 to 32 inches; very pale brown (10YR 7/3) fine sand; single grained; loose; common fine and medium roots; few fine faint yellow (10YR 7/6) masses of iron accumulation and few medium faint light brownish gray (10YR 6/2) iron depletions lining pores along old root channels; neutral; clear wavy boundary.
Bt1—32 to 36 inches; light gray (10YR 6/1) fine sandy loam; weak coarse subangular blocky structure; friable; few fine and medium roots; few patchy clay films in root channels; sand grains coated with clay; many medium distinct brownish yellow (10YR 6/8) masses of iron accumulation and few fine ironstone nodules; neutral; gradual wavy boundary.
Bt2—36 to 48 inches; yellowish brown (10YR 5/8) fine sandy loam; weak medium subangular blocky structure; friable; few fine and medium roots; sand grains bridged and coated with clay; streaks of white carbonates in root channels; many coarse distinct gray (10YR 6/1) masses of iron depletion; slightly alkaline; gradual wavy boundary.
Cg1—48 to 60 inches; light gray (10YR 7/1) loamy fine sand; massive; friable; few fine and medium roots; many medium and coarse distinct yellow (10YR 6/6) masses of iron accumulation; common small to large strong brown (7.5YR 5/6) ironstone nodules; slightly alkaline; gradual wavy boundary.
Cg2—60 to 80 inches; gray (N 6/0) fine sand; single grained; loose; common medium and coarse light olive brown (2.5Y 5/6) masses of iron accumulation; slightly alkaline.

The A horizon has hue of 2.5Y or 10YR, value of 2 to 4, and chroma of 1 or 2; or it is neutral in hue and has value of 2 to 4. It is sand or fine sand. Reaction ranges from extremely acid to slightly acid.

The E horizon has hue of 2.5Y or 10YR, value of 5 to 7, and chroma of 1 or 2; or it is neutral in hue and has value of 5 or 6. The quantity of redoximorphic features in shades of yellow and brown ranges from none to common. The texture is sand or fine sand. Reaction ranges from extremely acid to slightly acid. The combined thickness of the A and E horizons is less than 30 inches.

The Bh horizon has hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 4; or it is neutral in hue and has value of 2 or 3. It is loose to friable and is noncemented. In some pedons it has thin, firm, weakly cemented ortstein in less than half of the pedon. Some pedons have a BC/Bh horizon. Where present, this horizon has hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 to 4 and may contain spodic fragments. The texture of the Bh horizon and the BC/Bh horizon is sand, fine sand, loamy sand, or loamy fine sand. Reaction ranges from very strongly acid to neutral.

The E´ horizon, where present, has hue of 2.5Y or 10YR, value of 5 to 8, and chroma of 1 to 3; or it is neutral in hue and has value of 5 or 6. It is sand or fine sand. Reaction ranges from very strongly acid to moderately alkaline.

The Bt horizon is at a depth of less than 40 inches. It has hue of 2.5Y or 10YR, value of 5 to 7, and chroma of 1 to 8; has hue of 5Y, 5G, or 5GY, value of 4 to 7, and chroma of 1 or 2; or is neutral in hue and has value of 5 or 6. It has few to many redoximorphic features in shades of gray, brown, yellow, and red. The content of small ironstone nodules ranges from none to common. The texture is fine sandy loam, sandy loam, or sandy clay loam. In many pedons the Bt horizon has pockets or intrusions of coarser textured material. Reaction ranges from very strongly acid to moderately alkaline.

The Cg horizon has hue of 5Y or 10YR, value of 5 to 8, and chroma of 1 or 2. The quantity of redoximorphic features in shades of brown and yellow ranges from none to common. The quantity of small to large ironstone nodules ranges from none to common. In some pedons the Cg horizon contains shell fragments. The texture is sand, fine sand, or loamy sand. Reaction is slightly alkaline or moderately alkaline.

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