Observation 87254: Caloplaca subsoluta (Nyl.) Zahlbr.

When: 2012-01-30

Collection location: Palos Verdes, Los Angeles Co., California, USA [Click for map]

Who: Jason Hollinger (jason)

Specimen available

I was pretty excited to finally see one of the Caloplaca squamosa group in person. I’ve long wondered what this bizarre microscopic character is that I’ve read about in the Caloplaca key in the Sonoran Flora so often: “layer below hypothecium paraplectenchymatous, round cells in apothecial margin”. Turns out it’s perfectly obvious when you finally see it. Yay. “Normal” Caloplaca have indistinct cellular structure under the hypothecium and narrow long radiating hyphae in the margins. This specimen had big round cells on the margin between the hymenium and the algae-filled portion of the rims. They gradually lengthen and become narrower as you move in from the margin, then grade into a tangle of tiny randomly-arranged hyphae under the hypothecium. Photos, however, didn’t turn out well.



Proposed Names

87% (1)
Eye3 Eyes3
Based on microscopic features: round cells in proper margin and paraplectenchymatous layer below hypothecium

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2012-01-31 02:19:21 CST (-0500)
Last modified: 2012-01-31 02:19:23 CST (-0500)
Viewed: 36 times, last viewed: 2017-07-21 12:47:03 CDT (-0400)
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