Cryptogamie, Bryologie
28 (1) - Pages 31-40New populations of the following bryophytes, rare in Québec or in Canada, are mentionned: Ephemerum spinulosum, Bryum violaceum, Bryum klinggraeffii and Riccia huebeneriana subsp. sullivantii. Two species are mentionned for the first time in the Province of Québec: Riccia rhenana and Riccia cavernosa. An identification key to the Riccia of the Province of Québec is provided with a summary of their known distribution in this Province.