( 266 ) 
224. f. 2-2c; Migula, Char. Deutsch. Oesterr. Schw. f. 99-r0¢; 
Migula, Consp. Char. Eur. f. 8¢-89; Woods, Flor. Neb. 1: pd. 72. 
Exsiccatae : Allen, Char. Am. Exsicc. ¢-6, z9; Tilden, Am. Alg. 
z2z; Collins, Holden, & Setchell, Phyc. Bor. Am. 797. 
12, CHARA EXCELSA Allen, Bull. Torrey Club 9: 43. dé. 20. 
1882 
Spectes inguirenda ; as originally described a curious mixture, the 
sibly reducible to C. coztrarza, but requiring further collections: 
MOR GC CIOUS : 6-14 cm. high, grayish from the somewhat heavy 
incrustation; stems 0.2-0.62 mm. in diameter, mostly regularly 
doubly cy with the primary cells of greater diameter and 
more prominent, or with the ends of two secondary cells intervening 
lae: stipulodes forming a double whorl at the nodes, those in oa 
upper whorl 0.09-0.61 mm. long, those in the lower 0.12-0. 
ong, or wanting entirely at nodes ee between uncortica ted 
pele leaves 7 or 8 in a whorl, 0.8-3.2 cm. long, containing 
usually 3 or 4 doubly corticated pee iy with an uncorticated 2- 
or 3-celled i. the longest leaves with only one corticated inter- 
n uncorticated 5-celled leaf-tip, or some leaves entirel 
uncorticated but still fertile; leaflets or at ae the apa ex- 
tremely variable, - bracteoles the anterior 1.1-2.15 mm. long, usu- 
ally far exceeding the sporocarps, the ae aoe O.1-0 
mm. long: caeendis 0.32- 0-35 mm. io meter ; sporocarps 
o.8-1.05 mm. long, 0.44-0.6 mm. wide; aaa 0.54-0.75 mm. 
long, 0.38-0.44 mm.wide, these figures imperfectly representing the 
neck, crown-cells being 0.2-0.25 mm. high; odspores with 11- 
Type locality: Canadaigua Lake, New York. 
Distribution: Only known from original collection. 
Illustration: Bull. Torrey Club éoc. czt. excl. f. A. 
Exsiccatae: Allen, Char. Am. Exsicc. 75. 
Many of the most glaring discrepancies of this description are due 
to the difference between the two forms, but not all, as great varia- 
tion may occur upon a single leaf. Both forms may be abnormal, 
and the species, even with C. crénttiformzs excluded, is of very 
doubtful value. 
