Observation 198255: Xylariales Nannf.

When: 2014-12-31

Collection location: Cristalino Jungle Lodge, Alta Floresta, Mato Grosso, Brazil [Click for map]

Who: Susanne Sourell (suse)

No specimen available

Small size. 0,5-0,7 cm diameter

Species Lists


Proposed Names

52% (2)
Recognized by sight
41% (2)
Recognized by sight
28% (1)
Recognized by sight

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Add Comment
definitely weird
By: Danny Newman (myxomop)
2015-03-07 23:31:19 -05 (-0500)

no visible ostiole(s).

This is an odd one
By: Roo Vandegrift (Werdnus)
2015-02-07 19:59:31 -05 (-0500)

I think the most likely genus for this is another Rosellinia, but the contents of the stromata that you sectioned look rotted, unfortunately: it looks like there is another fungus growing inside. There are some other examples of uniperitheciate Xylariaceae, mostly Nemania, but a couple of Hypoxylon and Annulohypoxylon. The uniperitheciate Hypoxylon that I have seen generally have a reddish colour. The Nemania are usually black though, and can be quite hard to distinguish from Rosellinia without spores. Given all of that, I think that without further data it’s safest to leave this one at the family level, Xylariaceae.