When: 2014-06-01

Collection location: MP 14.5 E. Larch Mountain Rd., Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available


Thallus is gray-white, with pointed tips. Underside is black. Looks like a pin-oak leaf has been elongated.
Another surface photo. Some brown to lilac-brown in surface. Black underside.
Underside shows black warts or protuberances, which thin out towards the tips and become brown to buff-white.

Proposed Names

61% (2)
Recognized by sight: narrow lobed without isidia or soredia

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