20-04-2026 22:00
Malcolm Greaves
These pale yellow, hairy ascos were growing on cul
19-04-2026 21:23
Steve ClementsBonjour, I found this anamorphic fungus on old pl
19-04-2026 20:46
Steve Clements1 mm diameter approx spherical conidiophores on pl
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
17-04-2026 19:16
Enrique Rubio
Hi to everybodyI would appreciate any assistance r
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
17-04-2026 15:14
Bruno Coué
Bonjour.Récoltes du 16/04/2026, sur feuilles mort
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
14-04-2026 21:52
Gernot FriebesHi,found on dead leaves of Carex elata. Conidia: 4
16-04-2026 22:09
Buckwheat PeteHello, I'd like to ask about this older specimen:
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.