1888. | BOTANICAL GAZETTE. 83 
inflated perigynia, occurring in the most northern states; a 
more slender form with slimmer pointed perigynia, growing 
in the middle and southern states; a depauperate form with 
very short perigynia, found in the southwest. The following 
nerved below, cuspidate or muticous, all except the lowest 
ones shorter than the perigynium. Boott, t. 86.—New Eng- 
land to Michigan and Illinois, and Pennsylvania. 
Var, angustifolia Boott, Ill. 34, t. 87.—C. /axifora Ell. Sk. 
Pl 
longer, sharper, and more spreading than in the species.— 
Southern Ohio, Pennsylvania and New Jersey, southward to 
Florida and Texas. ‘Common in the middle states. The 
variety, as outlined here, includes somewhat more than Dr. 
Boott evidently intended to designate, but there are no char- 
acters, so far as I know, which separate the extreme southern 
very narrow-leaved form from the plants of the central states. 
It is still a question as to the relationship of this variety with 
Carex oligocarpa Schk ; 
or the upper ones wholly muticous.—St. Louis, Mo., Eggert, 
Arkansas, Hasse (specimens somewhat intermediate between 
this and var. angustifolia), Texas, /Vea//y. 
4. Carex flava Linn., emend.—Carex flava is a puzzling pa 
Species. It varies towards C. Géderi Retz, a species which 
may not be distinct. Yet there appears to be a satisfactory — 
line of demarcation between the two, and a greater accumu~ 
lation of confusing material must come in before their union 
Can be justified. The essential characters of typical C. flava 
