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03-03-2026 20:34

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

02-03-2026 22:07

Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

26-02-2026 22:06

Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

27-02-2026 17:51

Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

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Pyreno on Populus wood
Enrique Rubio, 04-05-2016 12:55
Enrique RubioHi again

These small (up to 250 microns high) gregarious, scattered, seminmersed, ostiolate perithecia grew on very wet, semirotten wood of Populus. Only the free, somewhat papillate, neck and the apical region of the pyriform ostiolate perithecia are blackish by the existence of agluttinated short hair-like black cells. The rest of the fruitbody is smooth and subhyaline.


The cylindrical, 8-spored, shortly stipitate asci, 90-105 x 8-9 microns, have a highly refractive, small, IKI negative apical apparatus, the stipes not disolving at maturity.


Ascospores hyaline, smooth, 3-septate, 13-20 x 4.5-5.5, with many guttules, with no gel seath, no appendages. Paraphyses septate, apically attenuated.


Have you some idea for it?


Many thanks again

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