( 280 ) 
species C. glodularzs Thuill. Flore Env. Paris. ed. 2. 472. 1799, 
and C. cafillacea Thuill. Joc. czt. 1799. From the descriptions it 
seems very probable that both are forms with abnormal sporocarps. 
If one or both are identical with C. fragzlzs the latter name must 
be replaced, but without absolute certainty it is here considered in- 
advisable to make any change in what is perhaps the longest-estab- 
lished and most widely accepted specific name in the genus. 
29. CHARA VERRUCOSA Itzigsohn, Bot. Zeit. 8: 338. 1850 
C. delicatula Ag. Syst. Alg. 130. 1824. Not C. delicatula 
Desv. 1810. 
C. fragilis delicatuda von Leonh. Oesterr. Arml.-Gew. 90. 1864. 
Monoecious : 5-30 cm. high, rather slightly incrusted; stems 
0.33-0.53 mm. in diameter, regularly triply corticated, the primary 
cortical cells clearly of greater diameter than the secondary cells, 
and projecting somewhat beyond them, the secondary cells occa- 
sionally somewhat irregular, sometimes leaving only a single secon- 
dary cell between two primaries; cortical node-cells auficieatly con- 
spicuous, usually forming papillae, pote becoming short spine-cells : 
= cach the stipulodes of the upper whorl! well developed, 0.12-0.42 
m. long, those in the ed nearly always shorter, usually 0.09— 
oO. oe mm. long, sometim ened! inconspicuous : peels or 8ina 
whorl, 4-21 mm. long, co eee ing 3-9, much most frequently 8 or 
9, doubly corticated faerodes: and a 1-3-celled ee apex; 
posterior leaflets undeveloped, or reduced to mere papillae, the 
bracteoles variable, 0.28-1.4 mm. long, more often exceeding the 
mature sporocarps: antheridia 0-35-0-56 mm. in diameter ; eae 
mm. long, 0.47~0.6 m oe with li- 13 striae ; whorl of crown- 
cells 0.1-0.24 mm. hi es o.18-0.26 mm. wide, the individual cells 
oblong-lanceolate to ovate, mostly connivent. 
Type locality: Germany. 
Distribution: Maine and New York to Alaska and California; 
urope. 
Ulustrations: Jour. Bot. 18: ~/. 207. f. za; A. Br. Fragm. 
Monogr. Char. 7. 7. f. 269, 270; Migula, Char. Deutsch. Oesterr. 
Schw. Z48 ; Migula, Consp. Char. Eur. f. 7377; Fl. Dan. 16: 
pl. 27 
Exsic : Allen, Char. Am. Exsicc. 22; Collins, Holden & 
Secchetl, en Bor. Am. zzgg. The latter plant, from California, 
diverges aaa from typical material, the former contains 
some C. aspera 
