1924] Taylor,—Further Notes on British Columbia Algae 165 
COELASTRUM PROBOSCIDEUM Bohlin. Frequent in a spring on the 
east side of Prairie Mountain near the rocky summit. 
COLEOCHAETE ORBICULARIS Pringsh. Rare in a pool in parkland, 
Cafion Creek. 
DimorpHococcus corDATUS Wolle. Rare, with Coelastrum. 
HERPOSTEIRON VERMICULOIDES (Wolle) Collins. On cther algae, 
parkland pools, Cafion Creek, scarce : 
HonMoTiLA MUCIGENA Borzi. Among other algae in a parkland 
pool, Cafion Creek, rare 
OEDOGONIUM LONGATUM Ktz.? Fruiting among mosses in a pool in 
parkland, Cafion Creek 
OocvsTIs SOLITARIA Wille. On mud, rivulet on Prairie Mountain, 
rare. 
OOCYSTIS SOLITARIA MAJOR Wille. In parkland pools, Cañon Creek 
valley and Prairie Mountain. Scarce. 
PEDIASTRUM BoRYANUM (Turp.) Menegh. In a spring on Prairie 
Mountain. 
PEBpIASTRUM BorYANUM LONGICORNE Racib. In pools on Cañon 
Creek and Prairie Mountain. 
PEDIASTRUM TRICORNUTUM ALPINUM Schmidle. In a spring and 
pools on Prairie Mountain. 
SCENEDESMUS ABUNDANS (Kirch.) Chodat. In a spring on Prairie 
Mountain. 
SCENEDESMUS ARCUATUS Lemm. With the above. 
SCENEDESMUS BIJUGA (Turp.) Lagerh. With the above. 
SCENEDESMUS QUADRICAUDA (Turp.) Bréb. With the above. 
SCHIZOCHLAMYS DELICATULA W. West Floating in a pool in 
parkland, Cafion Creek, the major item. Among mosses in another 
spot. 
TRENTEPOHLIA AUREA (L.) Mart. On rocks near foot of Twin 
Falls, Yoho Valley near Field. Not noted as abundantly as on trip of 
1921. lt was omitted from the list in the report of that trip through 
an oversight. 
VAUCHERIA LONGIPES Collins. On a shale bank beside Cafion 
Creek in parkland, abundantly fruiting. 
HETEROKONTAE 
OPHIOCYTIUM PARVULUM (Perty) A. Br. In pools Cañon Creek 
valley and on Prairie Mountain. 
