Observation 21646: Collema coccophorum Tuck.
When: 2009-05-28
Herbarium specimen reported

Notes: On exposed limestone.

SPORES 8 per ascus, hyaline, 1-septate, elliptical, slightly constricted, rounded acute to strikingly acuminate in a few cases, smooth, 18-20 × 8.8-9.4 µm (N=7)

Images

45567
Collema is obviously one on the right.
45568
45569
45570
Apothecial section in water at 100×.
45575
Edge of apothecial section in water at 400×.
45576
Spores in water at 1000×.
45577
Chains of Nostoc near edge of apothecium.

Proposed Names

58% (1)
Eye3 Eyes3
Used references: Lichen Flora of the Greater Sonoran Region, preliminary keys to Ways of Enlichenment. Trevor Goward didn’t agree with this ID but subsequent study of spores ruled out his suggestion. Take it or leave it…
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2009-06-04 00:16:07 ADT (-0300)
Last modified: 2009-06-04 00:16:07 ADT (-0300)
Viewed: 117 times, last viewed: 2016-10-25 16:06:22 ADT (-0300)
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