Pogonatum alpinum (Hedw.) Röhl. var. microdontium (Kindb.) Macoun & Kindb.

Alaska: Aleutians West: Saint George Island, Behring Sea.
56.596185° N, 169.633455° W,
Datum: WGS 84. Uncertainty: 9926 meters. Coordinate Source: Digital Map.
On rocks. No. 1628, capsule. Substrate: saxicolous.

J. M. Macoun 600, Jul 15, 1892
WTU, Barcode: WTU-B-033770