( 282 ) 
0.04-0.1r mm. or very rarely 0.18 mm. long: stipulodes also re- 
duced, ovate or oblong, those in the upper whorl usually 0.09—0.16 
mm. long, rarely peed more or ay than eee those in the eee 
whorl 0.05-0.14 mm. long: leaves 6— ho 
long, the lower 3-8, usually 6 or 7, ed doubly cotiated, 
the uncorticated tip 1-3-celled; posterior leaflets reduced to me 
papillae, 0.035-0.085 mm. long, the anterior 0.09-0.26 mm. lo ae 
in both cases rarely near the upper limit given, as bracteoles in male 
plants the anterior 0.18-0.32 mm. long, or about one-half the 
exceeding or shorter than the probably immature sporocarps: an- 
theridia seen up to 0.62 mm. in diameter; most red mature 
ena o.7 mm. long, 0.45 mm. wide, its odspore 0.42 mm. long, 
wide, striae probably 8—10; whorl of crown-cells o.1— 
O.12 mm. , 0.2 mm. wide at base, the individual cells ovate- 
globose, not eee connivent. 
Type collected by John Macoun, zo. 76, at Long Lake, Saskatche- 
wan, July 8, 1879; in the herbarium of the New York Botanical 
Garden 
De bucon: Vermont to Saskatchewan. 
Illustrations: Bull. Torrey Club doc. czé. 
Exsiccatae: Allen, Char. Am. Exsicc. 27. 
Originally considered a distinct species by Dr. Allen, but he was 
persuaded to reduce it to a variety of C. aspera, which is its nearest 
ally. It seems to be distinct, however, by having shorter stipulodes, 
by the reduction of the spines to papillae, by the similar reduction 
of the posterior leaflets, and by shorter bracteoles. Probably also 
the striae upon the odspore are fewer than in any form of genuine 
C. aspera. 
32. Cuara cuBensis Allen, Bull. Torrey Club 21: 163. p/. 789. 
1894 
Monoecious, the antheridia and odgonia borne upon the same leaf- 
nodes, the lowest rarely on that between the Meee er basal and 
the lowest of the corticated internodes, usually on t aes ee 
the two lowest corticated internodes: rather pale -gree 
m. high, slightly incrusted; stems 0.6-0.84 mm. in eae gare 
corticated ; spine-cells o.2-0.9 mm. long, but inconspicuous, linear, 
acute: cy forming a vers = at each node, those in the 
upper whorl 0.84-0.96 mm. long, very nearly equaling the length 
of the pee basal fee internode, coe es ee lower whorl 
oO. ae 6 mm. long: leaves 12-15 in a "whorl, 2- oe con- 
taining 6-9 internodes, the basal one uncorticated, tie xt two or 
anciae three triply corticated, the remainder oe or 
