1922] Taylor,—Notes on some Algae 107 
PHORMIDIUM AUTUMNALE (Ag.) Gomont. Selkirk Mountains: form- 
ing a blue-green coating on wet rocks above the head of Fish Lake at 
5300 feet. 
PHORMIDIUM RETZII (Ag.) Gomont. In pure growth on wet rocks 
or moss. Eagle Pass Mountains: near the Big Eddy of the Columbia 
River, at 1500 feet; between the Big Eddy and Jordan Creek at 1800 
feet and on cliffs at the Falls of Jordan Creek at 2000 feet. 
ScYTONEMA MIRABILE (Dillw.) Bornet. Eagle Pass Mountains: cliffs 
by Jordan Creek at the Falls, 2000 feet. Selkirk Mountains: bottom 
muck in little pools above the head of Fish Lake at 5200 feet. 
ScyTONEMA Myocunovus (Dillw.) Ag. Eagle Pass Mountains: cliffs 
by Falls of Jordan Creek, 2000 feet. Selkirk Mountains: Quartz 
Creek, in pools beside the stream at 5700 feet and near the source 
in pass at 6500 feet, abundant. 
STIGONEMA INFORME Kuetz. Selkirk Mountains: wet rocks above 
the head of Fish Lake at 5200 feet, very abundant. 
STIGONEMA MAMMILOSUM (Lyngb.) Ag. Eagle Pass Mountains: 
cliffs near the Falls of Jordan Creek at 2000 feet; Cafion Creek at 2200 
feet and rocks in rivulet above 6000 feet. 
STIGONEMA OCELLATUM (Dillw.) Thuret. Selkirk Mountains: bot- 
toms and sides of pools above the head of Fish Lake at 5200 feet, 
abundant. 
STIGONEMA PANNIFORME (Ag.) Kirchn. Eagle Pass Mountains: 
rock near the Big Eddy of the Columbia River at 1500 feet. Selkirk 
Mountains: wet rocks above the head of Fish Lake at 5200 feet, 
abundant. 
SYNECHOCOCCUS AERUGINOSUS Naeg. Occasional, mixed with other 
algae and mosses. Eagle Pass Mountains: in a rivulet near the Big 
Eddy of the Columbia River at 1500 feet; wet rocks between the Big 
tddy and Jordan Creek, 1800 feet; cliffs of Jordan Creek near Falls 
at 2000 feet and rocks at mouth of Cañon Creek at 2000 feet. Selkirk 
Mountains: Cascade Summit 'Trail, abundant among moss at 5500 
feet and in valley below the Asulkan Glacier at 5000 feet; source of 
Quartz Creek at 6500 feet. 
TOLYPOTHRIX BYSSOIDEA (Hass.) Kirchn. Selkirk Mountains: 
forming black expanses on rocks in rivulets in the Quartz Creek Valley 
at 6000 feet. A little more slender than typical, (trichomes 8 ul and 
hardly as much as 1 mm. long. Fragments resembling this species 
were also found in the Eagle Pass Mountains. 
TOLYPOTHRIX LANATA (Desv.) Wartmann. Eagle Pass Mountains: 
pond at 6000 feet. Selkirk Mountains: near source of Quartz Creek, 
in pools at 6500 feet. 
CHLOROPHYCEAE. 
ANKISTRODESMUS FALCATUS (Corda) Ralfs. Rare. Eagle Pass 
Mountains: entangled among other algae in ponds and rivulets at 
6000 feet. Selkirk Mountains: in a pool near the foot of the Illecille- 
waet glacier at 4500 feet. 
