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Andgelo Mombert
Bonsoir, Un discomycète sur Liochlaena lanceolat
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Jason Karakehian
Hi does anyone have a digital copy of Raitviir A (
24-08-2020 13:00
Yulia Lytvynenko
Dear friends.Looking for a copy of the following w
11-07-2024 14:29
Viktorie Halasu
Hello, a thin-fleshed Mollisia on a monocot stem
14-07-2024 18:23
Joaquin MartinHi,I found this Ascomycete on horse dung.The spora
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Zuzana Sochorová (Egertová)
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Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
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Stefan JakobssonOn a wet lake shore I found a single minute apothe
11-07-2024 10:57
Viktorie Halasu
Hello, I have here a Mollisia on a leaf (possibly
Hello forum,how would you call this Pachyella? Growing on wood in a brook, not tested for latex presence.
Very short outgrowths on excipulum. Asci with croziers, IKI+b (type W).
Spores *18.5-21.5(22.3) × (10.3)10.7-11.7(11.8) um, X = 19.8 × 11.2 um, Q = 1.67-1.77-1.90,
with very fine ornamentation.
P. pseudosuccosa seems close, but the flesh didn't turn yellow.
Thank you in advance.
Viktorie
ornamentation-0001.jpg
Although the spore ornamentation is very close to those of P. pseudosuccosa, the latter is very different (see attached picture) and has hyphoid hairs on the outer part of excipulum.
Is it really a Pachyella? It seems there is no gelatinous matter in the outer part of excipulum... Using my key of Pezizaceae, I cannot find any correspondance.
The content of paraphyses reminds me the genus Elaiopezia, but I don't know any species with biguttulate ascospores.
Do you think possible to show the amyloid reaction on top of asci (your picture is too small)?
I compared it with my microphotos of Daleomyces spp. and I think it really is type W.
There was some gel on excipulum while fresh, now with exsiccate I'm not sure which is dried gel a which just some debris. When I first microscoped it, it was already a week after collecting, so perhaps the outer surface has dried out by then(?). How do you recognize gel coating in exsiccates, by staining it with CRB or is it better visible in some medium?
The gelatinous layer is always hard to evaluate on exsiccata, but your material is recent, so you could try to rehydrate in water and use CRB as medium to check this character.
In Pachyella, only P. salicina and P. pseudoampelina are suspected to not have hyphoid hairs, but I don't think your collection could be one of these species.
A DNA sequencing will surely provide an interesting result.