NELLIE CARTER: FRESHWATER ALGE. öl 
sp. nov., and Rosaria ramosa, sp. et gen. nov., on trees. 1181. River 
Dumbéa ; amongst other Cyanophycew in gelatinous coating on wet rocks 
near stream. 811. Nearest to G. violacea Rabenb., from which it differs 
in the greater diameter of the cells, and the formation of larger colonies, 
with unstratified sheaths. 
OSCILLATORIACE A. 
OSCILLATORIA VIOLACEA (Wallr.) Hass. Canala; in washings of Azolla 
from roadside ditch, 1359. Europe, America. 
LYNGBYA DISrINCTA Sehmidle. Mont Canala; epiphytic on various 
aquatic objects. 1242. Sandwich Islands. 
SYMPLOCASTRUM CUSPIDATUM Porti (Symploca cuspidatum W. & G. S. West). 
Forming Symploca-like tufts over Bryophytes. 587. England, W. Indies. 
NOSTOCHACEJE. 
Nosroc COMMUNE Vauch. Baie Ouémo; on sandy soil, 132. Ubiquitous. 
N.SPHÆRICUM Vauch. Mont Arago; with Hepaties on rocks near stream. 
1427. Europe, Australia, America. 
? N. MACROSPORUM Menegh. Forming a thin incrustation on rocks. 
(Probably this species, but identification uncertain because the alga had been 
dried for a long time and could not be satisfactorily restored.) No number 
nor locality. 
SCYTONEMACE AL, 
SCYTONEMA SUBTILE Mob. Baie Kuakué; forming bluish-grey woolly 
coating in rock crevices. 879. The alga only differed from the one 
described by Mobius in that it occurred as a definite stratum, not as isolated 
filaments amongst other alge. India, Australia. 
S. AMPLUM W. & G. S. West. Forma trichomatibus gracilioribus. Crass. 
fil. 16-22 w; crass. trich. 1:5-2 u; long. cell. 20-29 u; Mont Humboldt ; on 
wet rocks and in rock pools. 1045 a, 10456, 1045 ec. River Dumbéa; in 
small clear pool. 810. Pic La; forming a mat on nearly vertical surface 
of wet serpentine soil near stream. 865. W. Indies. 
S. VARIUM Kütz. With Cephaleuros virescens on leaf. 563. Only a very 
little present. Europe, Ceylon, Malaya, America. 
S. Hizronymi Schmidle, Flora Samoa-Inseln, 1896, p. 254. — (Text- 
fig. 1, R-E.) With mosses on tree-trunks. 1087. Samoa Islands. This 
alga, first described by Schmidle from the Samoa Islands, is really a 
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