When: 2017-06-13

Collection location: Monterey Co., California, USA [Click for map]

35.8244°N 120.2977°W 445m [Click for map]

Who: J-Dar

Specimen available

On bark and decorticated wood of a large old red willow (Salix laevigata).

Thallus yellowish-orange, verrucose, K+R. Apothecia <1mm, orange disk with lighter orange thalline margin and a distinct proper margin, all K+R.

Spores 8/ascus, hyaline, simple, polarilocular. About 12×6µm


Proposed Names

-28% (1)
Used references: B. Ryan’s unpublished keys, Caloplaca 4-C
57% (1)
Recognized by sight: Spore isthmus large, averaging 5µm

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= Observer’s choice
= Current consensus


Add Comment
Nice! Never seen this.
By: Jason Hollinger (jason)
2017-06-25 04:25:25 CEST (+0200)