Observation 66511: Dermatocarpon americanum Vainio
When: 2011-03-28
Herbarium specimen reported

Notes: On sheltered basalt cliff, north face. Distinguished from others by finely wrinkled pale lower surface (occasionally smooth but not farinose or black) and positive Melzer’s reaction in medulla.

Species Lists

Images

143548
upper side at 10x
143545
underside at 10x
143546
upper side at 10x
143547
upper side at 30x
143549
upper side at 10x
143550
upper side at 30x
143551
positive Melzer’s reaction in medulla in three thalli
143582
upper surface of four species
143583
upper surface of four species

Proposed Names

87% (1)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2011-04-28 18:23:32 PDT (-0700)
Last modified: 2011-06-15 19:31:16 PDT (-0700)
Viewed: 24 times, last viewed: 2016-10-22 00:15:53 PDT (-0700)
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