438 



Illinois Natural History Survey Bulletin Vol. 26, Art. 5 



Gtdiuni af'/irine L. Cleavers was found 

 in nine hill prairies. It was nowhere ver\ 

 abundant in the prairies, but was common 

 in the adjacent woodlands. 



Galium circaezans Michx. Wild lico- 

 rice, a plant of thickets and rocky woods, 

 was found jirowinj; in three hill prairies. 

 Also, it was seen in wooded coves. 



Galium pilosum Ait. This bedstrav\ , 

 a plant of thickets and rocky woods, was 

 seen in three loess prairies and one rock 

 prairie in southern Illinois. It was found 

 in wooded coves also. 



H'jiistonia hinieulata (Poir.) Britt. 

 This species of bluets was found at Cave 

 Creek and Block House. 



Houstonia lonijifolia Gaertn. This spe- 

 cies was encountered in rock prairie at 

 Fountain Bluff and in loess prairie at 

 \ almeyer. 



Itdustonia nigricans (Lam.) Fern. 

 This narr(iw-lca\cd species of bluets was 

 found growing abundanth in hill prairie 

 from Swarnes to South Prairie du Rocher, 

 except at Block House, South Edgemont, 

 Sugar Loaf, and Chaltin Bridge. It was 

 present also at North Kldred, Richwood, 

 and Pere .Martiuette. 



Caprifoi.iaceae 



Syinphoricarpijs orhirulatus Moench. 

 Buckbrush, a plant of thickets, pastures, 

 and open woods, was seen in 16 loess hill 

 prairies. It was frequent in the coves; in 

 places it formed open pure stands and 

 was the only shrubb) species present. 



Triostcum perjoliatum L. Horse-gen- 

 tian, or « ild coffee, a species of open 

 woods and thickets, was observed in loess 

 prairie at Fall Creek, Reavis Spring. 

 \Valnut Creek, and Block Hou e. 



I ihurnum rufidulum Raf. Southern 

 blackhaw, a small tree or shrub of rocky 

 woods, thickets, and glades, was found in 

 rock prairie at Government Rock and 

 Fountain Bluff. It was found in coves at 

 Phegley and on the rock ledges at Re- 

 nault, Chautauqua, and Clendenny. 



Campanulace.ae 



Campanula rntundifolia L. [C. inter- 

 cedens Witasek.] This bellflower was 

 collected from rock prairie at Bielema. 

 It was also seen on the cliffs at Balk and 

 on sandstone at Fountain Bluff. 



Spccularia perfoliata (L.) A. DC. 

 \ enus's looking-glass, a plant of fallow 

 fields, prairies, and waste places, was 

 found growing in eight hill prairies. 



LOBELIACEAE 



Lohilia spicata Lam. Spiked or pale- 

 spike lobelia was observed in 1 1 loess hill 

 prairies. 



Lobelia spica/a var. leptostacliys (A. 

 DC.) Mack. & Bush. [L. leploslachys 

 A. DC. I This variety was found in six 

 loess hill prairies, in two of these prairies 

 with the t\pical form of the species. 



COMI'OSITAE 



*.lchilha millcjrilium L. Yarrow, com- 

 mon in pastures, waste places, along road- 

 sides, and similar places, was found infre- 

 quently in five hill prairies. 



A tjosiris iiispidata (Pursh) Raf. This 

 plant was found in loess prairie at Reavis 

 Spring. 



.1 mhrosia coronopifolia T. & G. [./. 

 psiloslacltya var. coronopifolia (T. & G.) 

 Farw.] Western ragweed was found in 

 central Illinois hill prairies at Sessions, 

 Reavis Spring, Northeast Meredosia, 

 Bluffs, Walnut Creek, and North Fldred. 

 It is abundant in the sand prairies of Illi- 

 nois. 



.1 mhrosia clatior L. [./. artemisiijoliii 

 var. clalior (L. ) Descourtils.J The com- 

 mon ragweed was found in 12 loess hill 

 prairies. 



.1 mhrosia Irijidn L. Giant ragweed 

 was found in hill prairie only at Chau- 

 tauqua. It was observed in a disturbed 

 part of the rock prairie and was onl\ 

 about 2 feet tall. 



A ntennaria neglecia Greene. This small 

 pussytoes was found between the bunches 

 of gras^ at Menominee Station, Reavis 

 Spring, Northeast Meredosia, Bluffs, 

 Walnut Creek, and North Eldred. 



A ntennaria plantaginijolia (L.) Hook. 

 This species was seen in seven hill prai- 

 ries. It was more abundant in the adja- 

 cent rocky open woods than in the prairie 

 areas. 



Artemisia caudata Michx. This worm- 

 wood, frequently encountered in sand 

 prairies, was observed in rocky and sandv 

 loess hill prairies at seven sites in northern 

 and central Illinois. 



