The bryophytes of Nachvak, northern Labrador, with additional records from Saglek

摘要

One hundred and thirty-four species of mosses and 18 species of liverworts are reported from Nachvak Fiord and 22 mosses are reported from Saglek Fiord. Nineteen of the mosses had not previously been reported from Labrador and 49 are new to northern Labrador. Seven of the liverworts are new to Labrador. Brophyte species new to eastern North America areAnastrophyllum assimile,Hygrophypnum cochlearifolium(possibly) andLophozia cavifolia. The record ofLophozia cavifoliarepresents an addition to the hepatic flora of North America (excluding Greenland). The North American distributions ofHydrogrimmia mollis,Marsupella revoluta and Trichostomum arcticumare mapped. The high incidence of disjunct species in the bryoflora of the Torngat Mountains is discussed in relation to the proposed glacial history of the area.