. Bulletin. Natural history; Natural history. August, 1955 EvERS: Hill Prairies of Illinois 399. Fig. 14.—Housen hill prairie, north of Rockport, Pike County. The forest of the basal slope extends to the bluff top through the drainageway at the left of the prairie. ghastrurn nutans were abundant; A. sco- parius was infrequent. At the top of the brow slope was a strip of woodland. Its northeast side had a dense border, 3 to 6 feet wide, of Sorghastrum. At the base of the spurs, Mentzelia oligospernia grew in the crevices of the interrupted rock ledge. Seehorn-Payson.—The name of this hill prair
. Bulletin. Natural history; Natural history. August, 1955 EvERS: Hill Prairies of Illinois 399. Fig. 14.—Housen hill prairie, north of Rockport, Pike County. The forest of the basal slope extends to the bluff top through the drainageway at the left of the prairie. ghastrurn nutans were abundant; A. sco- parius was infrequent. At the top of the brow slope was a strip of woodland. Its northeast side had a dense border, 3 to 6 feet wide, of Sorghastrum. At the base of the spurs, Mentzelia oligospernia grew in the crevices of the interrupted rock ledge. Seehorn-Payson.—The name of this hill prairie comes from a village in Pike County and a township in Adams Coun- ty. In 1950, prairie occupied about an acre of slope; part of this area was in the southwest quarter of section 31, T. 3 S., R. 7 W., Adams County, and part in sec- tion 6, T. 4 S., R. 7 W'., in Pike County. Astragalus distortus occurred on the loess and on the rock ledges. Mentzelia oli- gospernia grew on the rock ledges and the rocky slope above the ledges. The prairie was heavily pastured by cattle and sheep. Poa pratensis was the most abundant grass on the prairie slopes; Andropogon scopa- rius was infrequent. In September, 1950, very little of the herbaceous vegetation was more than 6 inches tall; the average was 3 to 4 inches, except for an occa- sional bunch of Bouteloua curtipendula. This prairie was visited May 28, July 2, and September 9, 1950. Sessions.—In the 3 years this hill prai- rie was under observation, it occupied about acres of the upper southwest- and south-facing slope of the bluff in sec- tion 5, T. 5 S., R. 6 W., on the Sessions farm between Kinderhook and New Can- ton in Pike County. Prairie covered seven spurs, mixed forest the intervening coves. Above the rock ledge was a stony slope covered with prairie. Loess mantled the bluff. There was a generally flat upland to the northeast of the slope. Prairie cov- ered the almost flat spur-tops and some of the flat upland to the no
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
