Ditrichum heteromallum (Hedw.) E. Britt.
Annotated by Lyford, J., 1976.

British Columbia: Lynn Canyon Park; North Vancouver; Lynn Creek cuts a canyon with streamside cliffs and granite diorite boulders.
An old growth forest primarily hemlock and cedar with some large Douglas fir; Lynn Creek cuts a canyon with streamside cliffs and granite diorite boulders; along exit road.; sandy bank. Hemlock, cedar, Dougals fir Https://oregonflora.org/collections/individual/index.php?occid=3015367.

J. H. Lyford; J.H. Lyford 214, Feb 9, 1976
With W.B. Schofield
OSC, Catalog: OSC-B-28983, Accession Number: OSC5817