( 284 ) 
odspores 0.56-0.8 mm. long, 0.38-0.5 mm. wide, with 12-15 striae; 
whorl of crown-cells 0.21-0.23 mm. high, 0.21-0.25 mm. wide at 
base, the individual cells lanceolate, their apices obtuse, usually 
widely separated 
Type locality: Peekskill, New York. 
Distribution: Essex County, Massachusetts, to Lakes Champlain 
and Saratoga and the Hudson River. 
Illustrations: Allen, Char. Am. f/. 7. 1879; fl. z. 1880; 
Bull. Torrey Club 27: p/. 75. f. 5. 
Exsiccatae: Allen, Char. Am. Exsicc. 27. 
plant from New Haven, Connecticut, agrees with this in prac- 
tically every character, except that the dimensions are smaller with 
hardly an exception. Considerable variations in size are therefore 
to be expected. 
34. Cara inconsTans A. Br.; Kiitz. Tab. Phyc. 7: 28. pl. 
70. f. 2. 1857 
C. (tnconstans) Oerstediana A. Br. Monatsber. Kénigl. Akad. 
Wissensch. Berlin 1858: 367. 1858 
C. Crigeriana A. Br. Monatsber. Kénigl. Akad. Wissensch. 
Berlin 1858: 368. 1858. 
C. Oerstediana A. Br.; Allen, Char. Am. 3. 1880. 
C. gymnopus inconstans f. Orstediana A. Br. Fragm. Monogr. 
Char. 193. 1882. 
C. gymnopus inconstans f. Crigertana A. Br. Fragm. Monogr. 
Char. 193. 1882. 
C. gymnopus inconstans A. Br.; Allen, Publ. Bot. Field Columb. 
us. 1: 286. 1896. 
C. zeylanica tnconstans H. & J. Groves, Jour. Linn. Soc. 33: 
323. 1898. 
Monoecious, the antheridia and odégonia borne ie ee upon the 
three lowest leaf-nodes: 4.5-15 cm. high, ashen or pale-green, or 
0.6-0. 
triply corticated; spine-cells variable, 0.07-0.8 mm. long, acutish : 
stipulodes forming a double whor] at ‘each node, those in the upper 
whorl o.4-0.9 mm. long, nearly always shorter than the uncorti- 
cated basal apalatie of the leaves, stipulodes of lower whorl 0.28- 
0.68 mm. long: es g-12 in a whorl, 5-15 mm. long, contain- 
ing 5-7 ee. tee the apical cell, of which ‘the lowest one 
is uncorticated, the next 1-3 triply corticated, and the remainder 
uncorticated, or the leaves of the lowest oie aie) pee 
cated ; uncorticated basal internode 0.56-0.9 mm. long, or 2-6 tim 
as long as broad, nearly equaling or ae ce the lowest of te 
