1922] Taylor,—Notes on some Algae 109 
tains: among other algae in rivulets and pools at 6000 feet. Selkirk 
Mountains: in the valley below the Asulkan Glacier at 5000 feet and 
| at the source of Quartz Creek at 6500 feet. This appears to be the first 
record for this form in North America. 
PRASIOLA FLUVIATILIS (Sommerf.) Aresch. Selkirk Mountains: 
collected by Dr. M. H. Jacobs at 5500 feet in a small stream flowing 
E 
E 
RurzocLoNIUM SELKIRKII. Figs. A-G show branches of various sizes at 85 di- 
ameters. Fig. H shows a bend in the filament; in a thick-walled region, with oue 
of the cells forming a short spur; magnification 175 diameters. 
into Fish Lake. This exceedingly interesting species grew in abun- 
dance attached to stones, resembling a small Enteromorpha. Collins 
notes that this species has been found in Greenland and Alaska, but 
the writer is unaware of any other station as having been reported 
nearer to the Selkirks than these. 
RHIZOCLONIUM SELKIRKIDI n. sp* Filaments in tangled masses, 
frequently and sharply bent. Branches a continuation of the cell, or 
unicellular to multicellular; tapering, generally formed at a bend in 
+Rhizoclonium selkirkii, spec. nov. Filamenta laxe intricata, geniculata, ex 
geniculis hic et illic ramulos emittentia. Ramuli aut cum cellulis articulorum con- 
tinui aut in appendices uni- vel pluriloculares prolongati. Articuli 20-50 yp lati, 
diametro sesqui vel triplice longiores. Membrana ad Zu crassa, 
