294 BOTANICAL GAZETTE. 
of the perigynium.—C. leviconica, Dew., Sill. wii pak 
47 (1857). Big Sioux and Yellowstone rivers, eee ok 
marck, Dakota, A. B. Seymour, 1884, and crete a yr Pe 
riable; the typical forms are slender with short pistillate sp es 
and short erect teeth, but they connect themselves in various ways 
with 
Generally distributed from New England and Canada to Oregon, 
and far northward. 
bs + ans ar. 
are hairy and the sheaths smooth, while the perigynia of V 
as the pubescence. 
i ri - VERRUCOSA, Muhl., Gram. 261 (1817) (C. glance 
Ell, and ©. verrucosa, Ell., Chapm. FI]. 542). Of the pee 
which has gone under the name of C. glaucescens, Ell., there eae 
forms, one characterized by a single and rather long-stalke . eo 
inate spike and drooping pistillate spikes, and the other Mf i 
to three short-stalked staminate spikes and-the upper Pe hers 
spikes erect. The first form was first described by Muh 5 
as C. verrucosa in 1817 and in 1824 by Elliott (Sketch me 
and Georgia, 553) as C. glaucescens. The form with shorter Pe 
and more erect spikes is described by Elliott (1. c. 555) pene 
verrucosa, Muhl.?” The two forms are not noice 7 a 
to merit even a varietal separation. They were united %) 
