RED SNOW FROM MT. SEYMOUR, BRITISH COLUMBIA

Samples of 'red snow' occurring in shaded areas in Mt. Seymour Park, British Columbia, were studied in the field and laboratory. The dominant alga is the volvocalean form Sphaerellopsis rubra nov. sp. The light- and temperature-sensitive organism has been observed in living collections and attempts to culture it have been unsuccessful. The habitat of the new taxon is discussed as well as its relation to the ubiquitous 'red snow alga', Chlamydomonas nivalis.