Observation 373179: Caloplaca Th. Fr.

When: 2019-05-28

Collection location: Morro Bay, California, USA [Click for map]

35.4116°N 120.8191°W 114m [Click for map]

Who: J-Dar

Specimen available
Collection number: Jason Dart 1348

Notes:
Highway 41, three miles northeast of Highway 1. On cow bone in a serpentine grassland habitat.

Thallus lacking or sometimes scant around base of apothecia, grey. Apothecia originating yellowish with grey outer edge to the raised margin and yellow-whitish pruina on disk, becoming epruinose and losing raised margin and disk pruina. Apothecia C- in section. Algae thick but discontinuous across base of apothecia.

I don’t know what species this is, something in the C. siditeris group?

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