138 BOTANICAL GAZETTE. 
broad, striated. Male spike terminal, an inch long; glumes ob- 
tuse, brown, with a white edge. Female spikes distant from the 
male, sessile, upright, linear, pressed close, reddish brown, with 
some male flowers at the top; lower one with a bracteal leaf as 
long as the spike. A native of Virginia, Pennsylvania, ete., de- 
scribed by Lamarck from a dried specimen.” 2 
C. werocarpa, 8. H. Wright, Sill. Journ. Sec. Ser. xlii, 334, C. 
angustata var. xerocarpa, Bailey, Carex Cat., is simply an attenU- — 
ated form of C. stricta, and it has no characters to separate it 
from the species. I find it growing from the same tussocks with 
the ordinary form. Occasionally the inflorescence is reduced to 
one androgynous spike. ©. Virginiana var. elongata, Bklr., Lin- 
nea, 40, 432, appears from the description to be a very large 
form of the same. 
. 755. 
C. xerocarpa, 8. H. Wright, Sill. Journ. Sec. Ser. xlii, 334- 
C. aperta, Boott, is perhaps too near C, stricta. The reticu- 
lated fibres of the lower sheaths of the latter species is the readiest 
distinction between the two. Careless collectors often fail © 
secure the lower sheaths, or the fibres are destroyed in pulling 
up the specimens. Occasional plants will be found in which thls 
character is normally obscure, however. CC. aperta commonly 
sine nhs spikes than. stricta, and sharper and more spreading 
scales. 
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CAREX LIDDONI AND C, ADUSTA. 
and _Torr., and expressed a doubt of its distinctness from that 
species. A subsequent knowledge of the species has definitely 
far different C. adusta. The form of the perigynium is widely 
different in typical specimens of each species, but it varies muct 
in the intermediate forms, Except in the var. minor of C. aaual 
the ovate or orbicular form of the perigynium readily disti” 
guishes C. adusta from the lanceolate-fruited C. Tiddoni. The 
most distinctive difference between the two, however, lies 12 the 
