1879.] | 183 (Halsted. 
A quantity of the male plant was collected by Mr. Wright in New 
Mexico; and the female has been sent from Florida. This comprises 
the list of American specimens and their localities as far as we have 
been able to determine. 
No. 8 of Braun, Raben. and Stiz. Exsic., agrees with our plants 
except that it is more incrusted with lime, a characteristic quite com- 
mon among the Etrropean plants. ‘The specimens from New Mexico 
are quite free from calcareous incrustations, and are of a pea-green 
color. . } 
Chara aspera (Deth.) Willd. 
Chara aspera (Deth.) Willd., Agardh, Syst. Alg., 130; Sprengel, 
Halensis, 437; A. Braun, in Flora, 1, 71; Schweiz. Char., 20; 
Kiitz., Phye. germ., 257; Phyc. gen., 320; Sp. Ale., 521; Coss. and 
Germ., Fl. Env. Par., 680; Babington, Man. Bot., 111, 422; Wallman, 
Char. 94; A. Braun in Krypt. Fl. Schlesien, 408. 
Exsiccatae: Braun, Raben. and Stiz., Char. Exsic., 11 and 12. 
Illustrations: Engl., Bot., Tab. 2737; Fl. Dan., Tab. 1940; Coss. 
and Germ., Atlas Tab. 38-D; Greville, Scot. Crypt. Fl., vz, Tab. 339. 
Plants diecious, slender, much branched, incrusted with lime; stem 
.50-.65 mm. broad, spines very numerous, stipular ring large; whorls 
numerous, consisting of 6-8 leaves; leaves with 6-7 articulations, the 
upper 2-3 naked, ending in a mucronate tip; bracts sharp pointed, as 
long as the sporangium. Sporangia .46-.55 mm. long, three times as 
long as broad, 12-14-striate, crown short, truncate. 
The slender habit of growth, dicecious character, and numerous 
spines, make this one of our most distinct species. It has been found 
to some extent in nearly all regions of the earth, and is one of a few 
species which grow in both fresh and salt water. 
The ‘‘forma marina’’ of Nordstedt and- Walhstedt’s collection 
agrees with No. 12 of Braun, Raben. and Stiz. Exsic., which is also 
from the sea, in being provided with bulblets. 
In Herb. Gray the specimens are from New Mexico (Mr. Wright, 
16-17), and correspond to No. 11 of Braun, Raben. and Stiz. 
Exsic., and are of the normal form. According to Mr. Allen this 
species has been found at Montauk Point, Long Island, along with C. 
crinita. 
Chara Robbinsii n. sp. 
Plants moneecious, yellowish green, without incrustation, branching 
only at.the lower leafless nodes; stem not exceeding eight inches in 
length, .25-.40 mm. broad, slightly spinose, stipular ring large; whorls 
