FRESHWATER ALGJE OF THE WEST INDIES. 281 
gattung Rhizoclonium,” Verhand. zool.-bot. Gesellsch. Wien, 189), 
p. 978. 
Var. TORTUOSUM, Stockm. in Verh. zool.-bot. Gesellsch. Wien, 
1890, p. 583.—Rhizoclonium tortuosum, Kuetz. Phye. Germ. 
p. 205; Spec. Algar. p. 381. 
Short lateral branches entirely absent; cell-membrane lamel- 
lose. 
Crass. fil. 25-325 u; crass. membr. cell. 3°5-5°5 p. 
Hab. Growing in small stream, Roseau Valley, Dominica. 
No. 1176. 
Ord. Coxzvaar x. 
Fam. ZyYGNEMACER. 
*6. Movatorra sp. 
Crass. cell. veget. 8:6 u. 
Hab. On leaves in warm stream, road to Roseau Lake, Domi- 
nica (2500 ft.). No. 1178. 
*7. ZYGNEMA ERICETORUM, Hansy. in Archiv Nuturw. Lan- 
desdurchf. von Bühmen, Bd. vi. 1888, pp. 155-6.—Aygogonium 
eric»torum, Kuetz. Phye. gener. 1813, p. 239. 
Crass. cell. veget. 16-22 u. 
Hab, On bank, road to Lake, Dominica. No. 1222.—In 
stream, Wotten Waven, Dominica. No. 1248.—On ground, 
crater, Grande Soufrière, Dominica. Nos. 1835 and 1840. 
“8. SPIROGYRA NEGLECTA, Kuetz. Species Algar. 1849, p. 441. 
—Zygnema neglecta, Hass. Brit. Freshw. Alg. 1845, p. 142, 
t. 23. ff. 1, 2. 
Var. TERNATA, West 4 G. S. West,“ Welw. Afric. Freshw. 
Alg., Journ. Bot. xxxv. 1897, p. 41.—8. ternata, Ripart, in 
Bull. Soc. Bot. Fr. xxiii. 1876, p. 162. 
Crass. cell. veget. 44-57 u; long. zygosp. 84-100 u; lat 
zygosp. 48-54 u. 
Hab. In stream, Wotten Waven, Dominica. No. 1248. 
*9. CHOASPIS STICTICA, O. Kuntze, Revis. Gen. Plant. 1891, 
p. 887.—Conferva stictica, Engl. Bot. Choaspis serpentaria, 
S. F. Gray, Arrangement Brit. Pl. 1821, vol. i. p. 299 (nomen 
prius). Sirogonium sticticum, Kuetz. 
