Observation 197549: Rosellinia De Not.
When: 2014-12-28
No herbarium specimen

Notes: Growing on wood

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Recognized by sight
51% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thanks so much, Roo
By: Susanne Sourell (suse)
2015-01-31 14:17:31 CST (-0500)

… Awesome…

By: Roo Vandegrift (Werdnus)
2015-01-31 14:06:18 CST (-0500)

Ah, then this could be a funny looking Rosellinia, and the white could be a particularly appressed subiculum. Another genus with hundreds of tropical species distinguished mostly by ascospores. The white, tightly appressed subiculum, the large size of the perithecia, and the rough surface texture might narrow it down, though. There’s a great treatment of the genus by Liliane Petrini published in 2013; I’ll poke through it.

Substrate and size
By: Susanne Sourell (suse)
2015-01-31 09:14:19 CST (-0500)

Yes, each black round thing seems to be a single perithecium. The pale material very likely a part of this (or another?) fungus. They were quite small. 0,6 cm to 0,8 cm across.

By: Roo Vandegrift (Werdnus)
2015-01-30 17:56:15 CST (-0500)

Those are cool! What’s the scale for these photos? I’m interpreting each black round thing as a single perithecium, about 1mm across? Is the pale material part of the wood/substrate, or part of the fungus?

Created: 2015-01-30 16:26:34 CST (-0500)
Last modified: 2015-01-31 14:06:48 CST (-0500)
Viewed: 51 times, last viewed: 2017-02-20 04:58:01 CST (-0500)
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