Observation 47914: Bacidia schweinitzii (Fr. ex E. Michener) A. Schneider
When: 2010-05-01
Herbarium specimen reported

Notes: Like Vitaly’s observation earlier, this is a good example of the much less common brown form of this species, growing right beside the usual black form. The microscopic photos are all of the brown one. Note that there is allegedly an even paler form as well, with even the hypothecium lacking dark pigment. I wouldn’t know how to identify that form. The critical characters are just: 8 long multi-septate acicular spores; brown hypothecium; all parts K-. This covers a broad range of variation.

Images

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apothecial section in water at 100x
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apothecial section in water at 400x
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spores in ascus in water at 1000x

Proposed Names

87% (1)
Eye3 Eyes3
Based on microscopic features: brown hypothecium, multi-septate acicular spores

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2010-07-01 13:01:01 PDT (-0700)
Last modified: 2010-07-01 13:01:05 PDT (-0700)
Viewed: 35 times, last viewed: 2016-10-23 21:56:05 PDT (-0700)
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