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30. CHARA ASPERA Willd. Ges. Naturf. Fr. Berlin Mag. 3: 
298. 1809 
C. aspera nitidula A. Br. Fragm. Monogr. Char. 175. 1882. 
us: 10-18 cm. high, dull- or pale-green, very slightly in- 
crusted, bulblets sft ¢ present stems 0.33-0.45 mm. in diameter, 
triply corticated, but the secondary cells often developed in one 
longitudinal direction only, or for short distances only in either or 
both directions, the stems oe numerically about doubly corticated ; 
spine-cells variable, linear to ovate, 0.12-0.9 mm. long: stipulodes 
0.05-0.1 soa wide: leaves 7-10 in a whorl, 6 15 mm. long, con- 
taining 5-7 doubly corticated internodes, wi ith an extremely varia- 
ble 1- or 2-celled uncorticated tip, this last acute to square-cornered 
at the apex; all leaflets at any node i eloped, but the anterior the 
longer, at sterile nodes usually 0.35-0.52 mm. long, but at young 
nodes sometimes less, the posterior aay one-half to one-third this 
length; lateral bracteoles almost Pele peasaans the antheridia and 
probably the odgonia, usually 0.63-0.96 mm. long, rarely less : an- 
theridia 0.4-0.57 mm. in diameter ; Re immature sporocarps seen 
merican material, but according to Migula and Allen, when 
mature 0.75-0.9 mm. long, 0 0.4-0.55 mm. wide; odspores 0.44-0.65 
mm. long, 0.28-0.4 mm. wide, with 11-16 striae ; whorl of crown- 
cells according to Migula 0.08 mm. high, 0.14 mm. wide at base, 
but in the immature American sporocarps 0.14 mm. high, 0.16-0.18 
mm. wide at base, the individual cells lanceolate, ascending. 
Type locality: Warnemiinde, Mecklenburg-Schwerin, Germany. 
Distribution : Newfoundland to Long Island, also New Mexico; 
also Europe an F rica. The New Mexican plants are 
rather different from orien ones, but themselves vary, and are 
better not separated at present. 
Illustrations: Bull. Torrey Club 9: f/. az, f. A, 7-37, 7; Kiitz. 
Phyc. Tab. 7: p/. 52. f. 7; Jour. Bot. 18: pl. 207, f. 4; Migula, 
Char. Deutsch. Oesterr. Schw. A/. 734, 135; Migula, Consp. Char. 
Eur. f. 279, 120; Grev. Crypt. Fl. 6: 27. 339. 
Exsiccatae: Collins, Holden, & Setchell, Phyc. Bor. Am. 7796. 
31. Chara Macounii Allen, in herb. 
C. aspera Macounii Alien, Bull. Torrey Club 9: 44. f/. az. f. B, 
gO. 
ious, or in extremely rare cases oe and oégonia on 
afer nodes of the same leaf: 5-10 cm. high, dull- -green, slightly 
incrusted, bulblets often present ; eee oo. 44 mm. in diamcter, 
corticated as in C. aspera, but the spine-cells reduced to papillue, 
