281 
WEST INDIAN FRESHWATER ALG. 
By G. §. West, M.A., F.L.S. 
(Prate 464,) 
Tue Alge which tex the rita of this se were very kindly 
collected at my request by Mr. A. Howard during 1901-2 in the 
islands of Barbados, Dominica and Trinidad. Buine of them have 
proved of great interest, particularly as ‘so little i aa con- 
e o 
Osecillatoriacee is relatively large.. Three interesting epiphytes 
occurred on some fine fruiting specimens of Pithophora Cleveana 
Wittr., all of whi ch have proved to be new. 
Gleotenium Loitlesbergerianum Hansg. and Cosmarium bireme 
: are worthy o f 
integuments, and the latter because of its minute size. 
diatoms, the most interesting are: Achnanthes Hérmannii Gutw., 
Cerataulus levis var. ther malis (Men. ) Grun., 4 opidoneis Van 
Heurckii (Grun.) Cleve, and Terpsinoé musica Ehre 
The first important papers on Freshwater coe from the West 
Indies were two by Lagerheim,* in which he recorded a number of 
Desmids from Gabi: “acu Rico, and Jam One Desmid 
(Euastrum incavatum Josh. et Nordst.) has beak recorded from 
Jamaica by Nordstedt,/ and ‘overall others have been mentioned 
from Cuba and Trinidad by Borge.t Two other papers, somewhat 
more comprehensive in their scope, have also appeared on Fresh- 
water Algz from Dominica and St. Vincent. . —. Cleveana 
Wittr. Se bars described abcrgpmsd isin St. Thomas. 
Mos he Alge recorded in the ve ase are additional 
to one Aber known from the West Indie 
say ts ae 
1, Gidogonium Howardii, (Figs. 1-5.) i. dioicum, 
macrandrium, oogoniis singulis, globabis vel ‘sabglobosis ape 
apertis, circumcissione mediana et distincta po bosis vel 
subdepresso- cies. ala complentibus; ‘ antharidite pravinetlt 
oor alee ice Os ee ee ee ae 
* G. Lagerheim, “ . till Amerikas Meggan beers Ofvers. af K. 
Vet.-Akad. ‘Forh, 1885, no. 7. G. Lagerheim, ‘“ Algologiska Bidrag at; 
Botaniska Notiser, 1887, 
Pe, Vide Wittrock et Nordst. Alg. aq. dule. exsic. Fascic. 21, p. 36, no. 657, 
Borge, ‘‘ Ueber ig oe und prepa Siiswasser- Chlorophyceen,”’ 
Bih. ‘an es ae Vet.-Akad. Handl. Bd. 2: 
§ W «On Some hole ~~ ae the West Indies,’’ Journ. 
— Soe. (ict) xxx. 1894. W. West & G. S. West, “A gh Contribution 
o the Freshwater Alge of the West Indies,” Journ. Linn. ce. (Bot.) xxxiv. 
1899. 
Jouexat or Botany.—Votr, 42. [Ocr. 1904.] U 
