Observation 197688: Bisporella sulfurina (Quél.) S.E. Carp.
When: 2015-01-31
0 Sequences

Notes:
Found by Christian Schwarz.

Cups up to 1 mm across, growing on the cut surface of a large log.

A few free floating spores found: 9-11 × 2-3. An ascus: 60 × 7. Paraphyses septate, ends not enlarged, 1-2 microns wide.

The second photo (taken with natural light) shows the color more accurately.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Thanks, Elsa
By: Sava Krstic (sava)
2015-02-13 01:23:39 PST (-0800)

Your id may be correct.

From Mykoweb: “Bisporella sulfurina is a tiny, lemon-yellow discomycete unusual in that it fruits in close association with a pyrenomycete. The latter is recognized by a layer of blackish tissue found in close proximity to the brightly colored discs.”

I’m attaching a picture showing that the wood around our yellow discos is covered by a black mass that also contains a lot of tiny perithecia. I just tried to look inside one of them, without success.

Unofortunately, I cannot confirm that the spores are biseptate. Those few that I saw floating around did not have septa.

Created: 2015-02-01 11:33:40 PST (-0800)
Last modified: 2015-02-13 00:58:13 PST (-0800)
Viewed: 69 times, last viewed: 2017-07-12 19:17:34 PDT (-0700)
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