Macoun, Canad. Musci Geol. Surv.
John Macoun

University of Vermont, Pringle Herbarium, North American bryophytes
Catalog #: UVMVT012434
#s.n. 11 June 1890
Grimmia calyptrata Hook. in Drumm.
Canada, British Columbia, Spence's Bridge, and at Deer PArk, Arrow Lake, Columbia River