440 
Gnaphalium obtusifolium L. Catfoot, 
old-field balsam, or sweet everlasting, 
was observed in 15 hill prairies. 
Helianthus divaricatus L. This sun- 
flower of dry woods and thickets was seen 
in 13 hill prairies, often on the upper 
slopes toward the crests of the ridges. 
Helianthus mollis Lam. Ashy  sun- 
flower, common in some upland prairies, 
was collected from loess hill prairie and 
the woodland border at Clendenny. 
Helianthus occidentalis Riddell. This 
sunflower was found growing in loess at 
East Henry and Bunker. 
Helianthus rigidus (Cass.) Desf. [H. 
laetiflorus var. rigidus (Cass.) Fern.] 
Prairie sunflower was seen in five hill 
prairies from Swarnes to Renault. 
Helianthus strumosus L. This’ sun- 
flower was encountered in loess at South- 
west Edgemont, Valmeyer, and Renault. 
At Fults and Fountain Bluff it was found 
in wooded coves. 
Heliopsis helianthoides (L.) Sweet. 
The scabrous form [var. scabra (Dunal) 
Fern.| of sunflower heliopsis was found 
in loess at Block House. 
Kuhnia eupatorioides L. False boneset 
was a common species in hill prairie. It 
was seen in rock and loess prairies from 
El Rancho and Devil’s Backbone to Cave 
Creek. 
Lactuca canadensis L. This wild let- 
tuce was found in loess at four hill prai- 
ries. Only a few isolated plants were 
present at each of these sites. 
*Lactuca scariola L. Prickly lettuce 
was seen only in the pastured Walnut 
Creek prairie. 
Liatris aspera Michx. This blazing- 
star or gay-feather was observed in 12 
hill prairies from Sunset Trail and Devil’s 
Backbone to Grand Canyon. 
Liatris cylindracea Michx. The cylin- 
dric blazing-star was collected from loess 
prairie at North Eldred, Chautauqua, 
Principia, Block House, Valmeyer, Fults, 
and Sampson; at Sunset Trail it was ob- 
served in crevices of rock ledges. 
Liatris scabra (Greene) K. Schum. 
This species was collected in rock prairie 
at Cave Creek and Fountain Bluff, where 
it occurred also in loess prairie and in 
crevices of the sandstone ledges. At Gov- 
ernment Rock (in the type locality for 
Ittinois NATURAL History SurRVEY BULLETIN 
Vol. 26, Art. 5 
this species) it was collected in rocky 
woodlands. 
Ratibida pinnata (Vent.) Barnh. Prai- 
rie coneflower, common in upland prairie, 
was found in nine scattered hill prairies. 
Rudbeckia missouriensis Engelm. This 
coneflower apparently is restricted in 
its range in Illinois to Monroe and Ran- 
dolph counties, where it was found in 
four hill prairies, Valmeyer, Fults, 
Sampson, and Phegley (Evers 1951). 
Rudbeckia serotina Nutt.* Black-eyed 
Susan was found in 12 hill prairies. It 
was not common at any of these sites. 
Senecio pauperculus Michx. This rag- 
wort was found in loess at Sunset Trail. 
Senecio plattensis Nutt. Prairie rag- 
weed was found in scattered hill prairies 
from North Savanna and Reavis Spring to 
Stotz. 
Silphium integrifolium Michx. Rosin- 
weed was found in scattered hill prairies 
from Fall Creek and East Henry to Cave 
Creek. 
Silphium laciniatum L. | Compass- 
plant was collected in four loess hill prai- 
ries, Swarnes, East Henry, Reavis Spring, 
and North Eldred. 
Silphium terebinthinaceum Jacq. This 
species was found at Valmeyer and Cave 
Creek. Scattered individuals at Cave 
Creek can be referred to the variety pin- 
natifidum (Ell.) Gray. 
Solidago altissima L. all goldenrod 
was found in eight hill prairies from 
Wiersma to Tamms. 
Solidago canadensis L. ‘This species 
was found in loess at El Rancho, Sunset 
Trail, and Wiersma. 
Solidago drummondii T. & G. Drum- — 
mond’s goldenrod was found in hill prai- 
rie at North Eldred, Chautauqua, Pheg- 
ley, and Fountain Bluff. It was collected 
also from crevices in rock ledges at Rich- — 
wood, Valmeyer, Fountain Bluff, and 
Government Rock. 
Solidago missouriensis var. fasciculata 
Holz. [S. glaberrima Martens.] Prairie 
goldenrod was seen at Principia and — 
Tamms. 
*This name was applied by Fernald (1950) to our 
common black-eyed Susan. He separated it from R. hirta 
L. on the shape of the basal and cauline leaves. The 
specific name serotina is used in this paper although fur- — 
ther study of the plant in the field and of herbarium 
specimens may show it not specifically distinct from R. 
hirta L 
