Observation 73061: Peltigera rufescens (Weiss) Humb.
When: 2011-07-09
Who: zaca
No herbarium specimen

Notes: Some features of this specimen:
- pale gray thallus when dry (see the photo with the change in color when wetting) with upturned margins exposing the rhizines near the margins;
- minutely felted-tomentose, but not bullate, without isidia or soredia;
- lower surface white-tomentose, with confluent rhizines that are white near the margins and brown further under the lobes; the veins also have this change in color;
- no apothecia was found.

These features match very well with the given in lastdragon for Peltigera rufescens.

The effect of wetting makes the thallus very similar in color to P. neckeri (compare with MO).

Images

160879
160880
160881
160882
160883
Rhizines.
160884
Wetting.
160885
Chemical reactions.
327129
2013-04-26: Revisited.
327130
2013-04-26: Revisited.
327131
2013-04-26: Revisited.

Proposed Names

58% (1)
Eye3 Eyes3
Used references: lastdragon for Peltigera rufescens.
Based on chemical features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Revisitation.
By: zaca
2013-05-08 18:14:44 EDT (-0400)

Almost two years latter I took new pictures. The bad new is that there are no new specimens.

Created: 2011-08-02 16:13:17 EDT (-0400)
Last modified: 2011-08-02 16:16:25 EDT (-0400)
Viewed: 53 times, last viewed: 2016-10-25 04:38:02 EDT (-0400)
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