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07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

19-02-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España), recole

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

17-02-2026 17:26

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous, Je recherche cette publication :

03-02-2013 19:50

Nina Filippova

Good time), I've compared this specimen with the

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Polydesmia sp.
Nina Filippova, 24-01-2013 13:29
Two quite similar externally tiny discs, both on coniferous decaying wood in wet places (in bogs). They turned to be different in microfeatures, but i had not succeed in clear id. even to genuses. Probably someone could be interested.

1) probably Polydesmia, but asci with inamyloid pore, and spores nonseptate, otherwise paraphyses propoloid, and if to follow the key of Korf (1978) it may be P. fructicola.

Apothecia pustulate to flat-cupulate, grayish, translucent, up to 400 x 100 mk, hymenium minutely rough, outside and edge appear smooth.
Excipulum textura prismatica, outer hyphae end by ventricose or clavate cells (hairs); asci clavate, clamped, with inamyloid pore, 54 x 7 mk; spores ellipsoid and curved (allantoid), non-septate, with large irregular guttulae, 11,6 (10-13,1) x 3,4 (3,1-3,9) mk; paraphyses irregularly bulged in different parts, branched 2-3 times, curved at the tips.


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Hans-Otto Baral, 24-01-2013 15:08
Hans-Otto Baral
Re : Polydesmia sp.
Dear Nina

 Polydesmia has 3-septate spores and amyloid asci, and these apically curved paraphyses are also untypical of that genus.

Do you have the fungus fresh? Please do photos in water, that would greatly help.  Possibly there are guttules in the paraphyses that disappear when mounting in such lethal agent.

Zotto
Nina Filippova, 24-01-2013 21:16
Re : Polydesmia sp.
Here some more pictures in water, paraphyses have no guttules, but spores with big oil drops or full oily content. Asci with rather thin stalk, i did not notice it before.
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Hans-Otto Baral, 24-01-2013 22:30
Hans-Otto Baral
Re : Polydesmia sp.
Good photos, but regrettably all in dead state. I assume the fungus was collected some weeks ago and was dried? Then these guttules disappear irreversibly.

I am sorry I have no idea of a genus. My idea was something around Naeviopsis, but I do not believe.

Zotto