Observation 50365: Physconia detersa (Nyl.) Poelt

When: 2010-05-20

Collection location: Trois-Rivières, Quebec, Canada [Click for map]

Who: Chris Parrish (kitparrish)

No specimen available

Species Lists

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98503

Proposed Names

28% (1)
Eye3
Used references: Brodo, Sharnoff, and Sharnoff, 2001, pp.560-566
56% (1)
Eyes3
Recognized by sight: marginal soredia

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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By: Jason Hollinger (jason)
2010-08-16 02:31:26 CEST (+0200)

Only other plausible option would appear to be P. enteroxantha, but there’s always at least a hint of yellowishness. Note, by the way, the secalonic acid (or whatever it is) in enteroxantha and related species is fairly strongly UV+y. Very handy if testing a large number of specimens.

Created: 2010-08-16 01:24:47 CEST (+0200)
Last modified: 2010-08-16 02:29:13 CEST (+0200)
Viewed: 260 times, last viewed: 2018-09-21 17:51:45 CEST (+0200)
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