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near Cameron Lake

LANCASTER COUNTY: Wilderness Park at Jamaica, South of Lincoln. Plant along Salt Creek at edge of woods (Ulmus, Acer); with Carex blanda and Osmorhiza longistylis.

Diller

42o 48'30''N, 99o 59'10''W Ca. 13.6 km WNW of Meadville, on a west tributary to Turkey Creek. Plant common, along marshy banks of creek.

Quiniault Falls

Floodplain ditch. East of North Platte. 2740 ft.

Pr. Sevier Lake on the Hi. US-6, roadsides in semiarid places.

Damp sand of sandbar in Platte River, Two Rivers State Recreation Area

Mt. Arrowsmith. Altitude 3-5000 ft.

Massively abundant on the north side of Shields Lake, on sandy muck. Leaves not serrulate. With Ceratophyllum demersum intermixed.

Hall County, 3 miles east of Grand Island. Growing on shores of sand pit.

6.5 mi (10.5 km) W of DeSoto. Wooded slopes and flats on dolomitic substrate near Parker Creek, ca. 0.35 mi (0.6 km) NNE of its confluence with Big River. 38[degrees] 07'30"N, 90[degrees] 40'30"W. 560 ft (170 m).

Baraga County, Michigan. Under hemlock stand on sandy soil. Sect. 12, T49N R34W

Submerged in relatively shallow but fast.flowing portion of Brule River; ca. 1 mi. S Brule (T47N, R10W, S23)

Lat. ca. 42 [degrees] No. Roadside ditch. Dunning, 9 mi. NW. 2600 ft.

NE 1/4 Sec.10, StandishTwp. at the Pine River public access boat ramp. 15m E. of ramp on south river bank. Substrate - 2-5 cm peat over sandy till. Growing in 10cm standing water with Scirpus atrovirens, Cladium mariscoides, Juncus spp., and Eleocharis sp

Platte River, about 2 mi s of Columbus. S bank of s fork e of bridge. Wet sandy soil & sand bar.

N42.54750 degrees W100.63741 degrees (WGS84). T30N R28W NE1/4 NE1/4 Sec. 30. Dewey Lake. Shallow water. North shore of Dewey Lake near boat ramp.

Collected in the southwestern part of the Colorado Desert, San Diego County, California.

Boulder, Col.

Courtney, Mo. Waste ground.

Santa Fe Canon, 9 miles east of Santa Fe. Altitude 8000 feet.

Roadside, 6 miles west of Englewood.

Spring seep area above river, between river and dirt road.

Collected near Montesano, Chehalis County. Alt. 200 ft.

Norfolk Va.

Wales.

West Spanish Peak. Altitude 3000-3800 M.

Collected in a wet tallgrass meadow on the N side of the Niobrara River ca 50 meters NW of the County Line Bridge. Plants common in drier sites in sandy-loam soil.

Missouri Riv. Bluffs.

Twin Sisters, Cheley Creek.

Florida

Big Spring, 3 or 4 miles south of Bilby's Lakes

T12N R1E, E side NE1/4 s22. Disturbed roadside 7 mi. N, 3 mi. E of Utica; common here, infrequent in this part of the county (most frequent in SE).

rocky pasture, W.E. Kellogg's place on Mt. St., Haydenville (Williamsburg).

In low meadows north of Arlington.

Gibbon, Neb.

1 mile East of West Point on Highway 32 and 1/2 mile South. Along moist slope of Quercus ravine; with Solidago.

Locality: D.C.

In a dry salt marsh, west side of N. First St., Lincoln, just south of Cornhusker Highway.

near Harrison, only in the gumbo soils, elevation 4500-5000 feet.

Sandbar at Platte River south of Grand Island.

1 mile north of Riceville, along C. G. W. RR.

Oak woodland above the Gretna Fish Hatchery

[Dubious locality] Plattsmouth, Cass County, about 1890. Received in Marsh, 1938.

Gilbert Baker Wildlife Management Area. T32N R56E Sec18: NE4 NW4; Latitude = 42.75516 N; Longitude = 103.94302 W. WGS84. Shaded north-facing bank of deep narrow ravine. Pinus ponderosa forest of Pine Ridge. With Acer glabrum, Toxicodendron rydbergii, Frax

Three miles west of Hallsville along railroad right-of-way.

Near Green City, Weld County, Colorado

Hiway 77 and Waverly Road North of Lincoln. Pasture.

A nice grove at lower end of rock slide on Laguna side of Mt. Emory, Chisos Mountains