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23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

23-03-2026 13:24

Paul Cannon

Could anyone provide me with a pdf of Auerswald's

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

21-03-2026 22:59

Petr Soucek

Good evening, I would appreciate some advice on th

20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

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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