Pm. Eckel, THE MOSS TORTELLA-ALPICOLA DIX NEW TO ALBERTA AND THE YUKON-TERRITORYWITH A DISCUSSION OF ITS RANGE AND COMMENTS ON RELATED SPECIES, Canadian field-naturalist, 111(2), 1997, pp. 320-322
Tortella alpicola Dir., once considered rare as only a few isolated st
ations had been recorded in North America, is shown to have a more wid
espread distribution. Characteristics distinguishing this species from
the common and widespread Tortella fragilis and T. tortuosa are prese
nted in a key.