438 
Galium aparine L. Cleavers was found 
in nine hill prairies. It was nowhere very 
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 growing in three hill prairies. 
Also, it was seen in wooded coves. 
Galium pilosum Ait. This bedstraw, 
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. 
Houstonia lanceolata (Poir.) Britt. 
This species of bluets was found at Cave 
Creek and Block House. 
Houstonia longifolia Gaertn. This spe- 
cies was encountered in rock prairie at 
Fountain Bluff and in loess prairie at 
Valmeyer. 
Houstonia nigricans (Lam.)_ Fern. 
This narrow-leaved species of bluets was 
found growing abundantly in hill prairie 
from Swarnes to South Prairie du Rocher, 
except at Block House, South Edgemont, 
Sugar Loaf, and Chalfin Bridge. It was 
present also at North Eldred, Richwood, 
and Pere Marquette. 
CAPRIFOLIACEAE 
Symphoricarpos orbiculatus 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 shrubby species present. 
Triosteum perfoliatum L. Horse-gen- 
tian, or wild coffee, a species of open 
woods and thickets, was observed in loess 
prairie at Fall Creek, Reavis Spring, 
Walnut Creek, and Block House. 
Viburnum 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. 
CAMPANULACEAE 
Campanula rotundifolia 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. 
Itutinois NaturAL History SurvEY BULLETIN 
Vol. 26, Art. 5 
Specularia perfoliata (L.) A. DC. 
Venus’s looking-glass, a plant of fallow 
fields, prairies, and waste places, was — 
found growing in eight hill prairies. 
LOBELIACEAE 
Lobelia spicata Lam. Spiked or pale- 
spike lobelia was observed in 11 loess hill 
prairies. 
Lobelia spicata var. leptostachys (A. % 
DC.) Mack. & Bush. [L. leptostachys — 
A. DC.] This variety was found in six 
loess hill prairies, in two of these prairies 
with the typical form of the species. 
COMPOSITAE 
*Achillea millefolium L. Yarrow, com- 
mon in pastures, waste places, along road- 
sides, and similar places, was found infre- 4 
quently in five hill prairies. 
Agoseris cuspidata (Pursh) Raf. This — 
plant was found in loess prairie at Reavis — 
Spring. ; 
Ambrosia coronopifolia T. & G. [A. — 
psilostachya 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 Eldred. © 
It is abundant in the sand prairies of Illi- — 
nois. 4 
Ambrosia elatior L. [A. artemistifolia — 
var. elatior (L.) Descourtils.] The com- — 
mon ragweed was found in 12 loess hill — 
prairies. 3 
Ambrosia trifida 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 only 
about 2 feet tall. . 
Antennaria neglecta Greene. This small — 
pussytoes was found between the bunches ~ 
of grass at Menominee Station, Reavis — 
Spring, Northeast Meredosia, Bluffs, 
Walnut Creek, and North Eldred. [ 
Antennaria plantaginifolia (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 sandy 
loess hill prairies at seven sites in northern 
and central IIlinois. 
