( 283 ) 
more rarely the pane entirely uncorticated, the uncorticated basal- 
leaf internode 0.9-1.15 mm. long, -o 
ceeding poricuied eee odes approxiinately 2.5 mm. long, and the 
uncorticated ones, except the last, 56.5 mm. long; leaflets at sterile 
nodes usually slightly unequal, o.4-1.1 mm. long, as lation the 
anterior and lateral usually the longer, 1— - mm. long, the poste- 
rio m. pe all exceeding the spor ee antheridia 
—O. meter; only ea es sporocarps on type ma- 
terial, the best cased of these 0.6-0.68 mm. long, 0.38-0.44 
mm. ‘wide, with odspores 0.42-0.46 mm. long, 0.35-0.4 mm. wide, 
said by Allen to be 0.6 mm. long; fig I ohoey edt 12-14; 
whorl of crown-cells 0.12~0.16 mm. hig 17-0.21 mm. wide at 
base, the individual cells lanceolate, ae at te apex, widely 
spreading 
Type locality; Guaiman (?), Cuba. 
Distribution. C 
Illustration: Bull. etey Club Joc. czt. 
Placed by Allen with either C. folzolosa or C. zeylanica, but it is 
evidently near and possibly too near C. ¢xconstans. 
33. Chara elegans (A. Br.) 
C. gymnopus elegans A. Br.; Allen (Bull. Torrey Club 2: 10. 
1871; hyponym), Char. Am. f/. 7. 1879. 
Monoecious, the antheridia and odgonia at the same leaf-nodes, 
the lowest occurring on the node between the uncorticated basal and 
the lowest of the corticated internodes of the ou 15-25 cm. ee 
light-green, only moderately incrusted; stems 0.6-0.9 m 
ameter, triply corticated, the primary eee cells ae ee 
than the secondary, comparatively short, 0.55-0.6 mm. long when 
full length, adjacent ones nearly of equal length, so that the spine- 
cells borne at the cortical node-cells appear to form whorls around 
in stem, aoe ten such whorls in each internode; spine-cells 1-1.6 
long, .I-0.12 mm, wide at the base: stipulodes forming a 
doable ase at each node, those in the upper whorl reaching a 
length of over 1.8 mm., exceeding in length the uncorticated basal 
internode of the ra eed of lower whorl 0.9 mm 
leaves 9-12 in a whorl, 1.4-1.8 cm. long, containing 7— 9 internodes, 
all triply corticated, eee the basal internode, and one or more at 
0.7 m g; leaflets at sterile nodes nearly equal, o.5-1. 
long, as bracteoles the anterior 3 ong, the posterior 
usually a little less, 0.77-1. m. long, always exceeding and 
by Allen 0.6-0.75 mm. long, 0.4-0.5 mm. wide, but apparently 
nearly always larger, 0.84-1.27 mm. long, 0.43-0.75 mm. wide; 
