276 MR. W. WEST ON SOME FRESHWATER 
40. Gimocapsa MuRALIS, Kuetz. (Tabula phycolog. i. t. 21. 
f.i.; Rabh. Fl. Europ. Al. ii. p. 36.) 
Long. cell. s. teg. 5°5-7°5 p; lat. cell. s. teg. 25-3; diam. 
fam. 19-25 p. 
Hab. On damp wall of dam, Sharp’s River, St. Vincent. 
No. 477. 
The cells were longer in relation to their breadth than those 
figured by Kuetzing (J. ¢.). 
41. G. aieas, nov. sp. (Pl. XVI. figs. 11-13.) 
G. familiis solitariis vel subaggregatis ; cellulis magnis, subglo- 
bosis vel oblongis, 4-36 in familiis subglobosis consociatis, mem- 
brana cellularum leva vel subtiliter granulata (vide fig. 11), 
cytioplasmate exrugineo et granuloso; tegumentis subglobosis, 
ad exteriorem duris sepe subrugosis, luteo-fuscescentis, lamellis 
extra cellulas indistinctis, paucis et pallide luteolis. 
Diam. cell. s. teg. 9-15 (plerumque 11 ),); diam. fam. 
44-115 p. 
Hab. On damp wall of dam, Sharp’s River, St. Vincent. 
No. 477. 
This occurred amongst Nostoc sphericum, Vauch., in no definite 
stratum ; and it is sufficiently distinguished by its large cells and 
other characters. 
42. GLa@ocaPsa, sp. 
Crass. cell. s. teg. 2-3 p. Nos. 23 and 24. 
43. GL@OCAPSA, sp.., 
Crass. cell. s. teg. 15 u. No. 546. 
44, APHANOCAPSA ELACHISTA, nov. sp. (Pl. XV. figs. 9, 10.) 
A. tegumento minutissimo, subgloboso, firmo, gelatinoso non 
lamelloso, achroo ; cellulis minutissimis, spheericis, solitariis gemi- 
natisve, laxe dispositis ; cytioplasmate homogeneo et xruginoso ; 
tegumentis non aggregatis in thallo distincto. 
Diam. cell. 1°5-1'8 » (usque ad 22); diam. teg. 26-38 p. 
Hab. On trees, summit of Trois Pitons (4500 ft.), Dominica. 
No. 903.—And in stream, Grande Soufriére, Dominica. No. 88+. 
This species seems characteristically distinct by reason of its 
minute cells in the very small globose colonies, which were 
scattered amongst other alge. 
45, GL@OTHECE LINEARIS, Naeg. (Gattung. einzell. Aly. p.58, 
t.1@.f.2; Rabh. Fl. Europ. Algq. ii. p. 60.) 
