440 



Illinois Natural History Survey Bulletip 



Vol. 26, Art. 5 



ihiiipharnim obtiisifoliuni L. Catfoot, 

 old-Held balsam, or sweet everlasting, 

 was observed in 15 hill prairies. 



Helian/hus 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. 



Htliniithiis mollis Lam. Ashy sun-, 

 flower, common in some upland prairies, 

 was collected from loess hill prairie and 

 the woodland border at Clendenny. 



Ihlianthus occidentalis Riddell. This 

 sunflower was found growing in loess at 

 East Henry and Bunker. 



Hilidiithiis ru/idui (Cass. I Desf. [//. 

 laelilhirus var. riijidiis (Cass.) Fern.l 

 Prairie sunflower was seen in fi\c iiill 

 prairies from Swarnes to Renault. 



Hi'UaiilhiH strumosus L. This sun- 

 flower was encountered in loess at South- 

 west Edgemont, X'almeyer, and Renault. 

 At Fults and Fountain Bluff it was found 

 in wooded coves. 



Heliopsis heliantlioides (L.) Sweet. 

 The scabrous form [var. scahra (Dunal) 

 Fern.] of sunflower heliopsis was found 

 in loess at I^lock House. 



Kiilnii/i iiipdtorioidi's 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. 'I"hi> wild let- 

 tuce was found in loess at four hill prai- 

 ries. Only a few isolated plants were 

 present at each of these sites. 



*Laciuca scarioln L. PrickK lettuce 

 was seen oiih in the pastured \Valnut 

 Creek prairie. 



Lia/ris aspera Michx. This blazing- 

 star or gay-feather was observed in 12 

 hill prairies from Sunset Trail and DeN'il'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 



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 missoiiriensis Engelm. 7his 

 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). 



Riidbiitia scrotina Nutt.* Black-eyed 

 Susan was found in 12 hill prairies. It 

 was not common at an\' of these sites. 



Si'nedfj patiperculiis 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. 



Silphinm inlegriiuiuiin Michx. Rosin- 

 weed was found in scattered hill prairies 

 from Fall Creek and East Henry to Cave 

 Creek. 



Silphiuiii lacininluin L. Compass- 

 plant was collected in four loess hill prai- 

 ries, Swarnes, East Henr\-, Reavis Spring, 

 and North Eldred. 



Silphiuni terebinthinacettni Jacq. This 

 species was found at V^almeyer and Cave 

 Creek. Scattered individuals at Cave 

 Creek can be referred to the variety pin- 

 natifidum (Ell.) Gray. 



Solidago altissima L. Tall goldenrod 

 was found in eight hill prairies from 

 \Viersma to Tamms. 



Solidago canadensis L. This species 

 was found in loess at El Rancho, Sunset 

 Trail, and Wiersma. 



Sdlidago 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. glaberriina 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. Tlic 

 specific name ifrnlina is used in this paper altliouph fur- 

 ther study of the plant in the field and of herbarium 

 specimens may show it not specifically distinct from R. 

 hirta 1.. 



