Collema undulatum Laurer ex Flotow
Remarks: ID certainty: certain

Alaska: North Slope Borough: Campsite near informal airstrip. SW of Copter Peak, watershed of Kugururok River Noatak National Preserve, De Long Mountains, western Brooks Range. Elev. 450 m.
68.4739532° N, -161.4812469° W
Datum: NAD27.
Dwarf shrub and low shrub (Betula) tundra, on alluvial terraces and valley bottom. Det.: B. McCune 2006
with Nostoc algae. Substrate: Saxicolous.

Roger Rosentreter 15878, Jun 2004
With Noatak Lichen Quest (TA/EAH/BPM/PN/SN)
RR, Barcode: SRP-L-0000611