168 MISSOURI BOTANICAL GARDEN BULLETIN 
Aristida basiramea, forked aristida. 
This grass is abundant on dry hills near Allenton and Pacific. 
Distribution: Ill. to Manitoba, south to Va. and Kan. 
Asplenium Trichomanes, maidenhair spleenwort. 
This beautiful little fern is abundant along the lower hill slopes 
near Pacific and Allenton. Distribution: Throughout nearly the 
whole of North America except the extreme north; also in Europe, 
Asia, and Africa. 
Aster furcatus, forking aster. 
A few clumps of this white aster are to be found on the banks of 
the Meramec River near Allenton. Distribution: Ill. and Mo. 
Boltonia decurrens, clasping-leaved boltonia. 
Plentiful along the lake shores of the American Bottoms. It is 
distinguished by its winged stems and violet or purple inflorescence. 
Distribution: Ill. and Mo. 
Brasenia Schreberi, water shield. 
Abundant in a pond near Eureka, its only local station. Distribu- 
tion: Asia, Africa, and Australia. 
Cabomba caroliniana, Carolina water-shield. 
Found at two stations within this locality, one at Creve Coeur 
Lake, the other in ponds near Allenton. Distribution: S. Ill. to 
N. C., south to Fla. and Tex. 
Clematis Fremontii, Fremont’s clematis. 
Growing abundantly on glades near Allenton and Pacific. Distri- 
bution: Prairies, Kan. and Mo. 
Corallorhiza odontorhiza, small-flowered coral-root. 
One large colony on the hillsides near Bluff Lake, Ill. Distribu- 
tion: Mass. to Mich., Fla., and Mo. 
Diarrhena diandra, diarrhena. 
This grass is to be found scattered in the rich woods at Allenton, 
Pacific, and along the Illinois bluffs. Distribution: Ohio to Kan., 
south to Ga., Tenn., and Okla. 
Dicentra canadensis, squirrel corn. 
In rich woods near Pacific where it is very abundant. Distribu- 
tion: Nova Scotia to Minn., south to Va. and Ky., west to Mo. 
Echinodorus tenellus, dwarf water plantain. 
Scattered colonies growing along the shores of Bluff Lake, IIl. 
Distribution: Mass. to W. Ont. and Minn., south to Fla., Mo., 
and Tex. 
Heracleum lanatum, cow parsnip. 
This tall stout perennial is plentiful along Creve Coeur Lake, the 
only local station. Distribution: Newfoundland to the Pacific and 
southward to N. C., Ky., and Kan. 
