On bark of dry and rather decayed branch. The trees around are oaks.
Asci ~100 × 10. Spores 16-20 × 5-6.
In Ellis&Ellis, the only fungus with this spore shape and size is Capronia (Berlesiella) nigerrima, which is tiny (0.05-0.1 mm) and grows on larger ascos like Dyatripe. Now, that’s difficult for me to confirm or disprove.
The key in M. Barr’s 1991 Mycotaxon article is mostly based on spore characters and leads to C. nigerrima or C. episphaeria. The former typically has setulose ascomata (not observed here), the latter has 5- to 7-septate spores (and I’ve seen only 5 or less).
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Created: 2015-02-25 00:33:05 PST (-0800)
Last modified: 2015-02-25 00:33:13 PST (-0800)
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