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06-12-2019 19:49

Edvin Johannesen Edvin Johannesen

Hi! Tiny, black, oblong stromata with pure white

27-11-2019 16:54

Rasmus Riis-Hansen Rasmus Riis-Hansen

Hi,I hope you can help med with this disc found a

05-12-2019 09:06

Valencia Lopez Francisco Javier

Hola amigosEstoy buscando este trabajo de la Errot

05-12-2019 19:35

Ibai Olariaga Ibarguren

Dear colleagues, I was wondering if anyone could

19-11-2019 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... under a twig of deciduous tree (likely Quercus

29-06-2011 22:52

Luc Bailly Luc Bailly

Encore trois ascos de la réserve naturelle domani

04-12-2019 13:01

Mirek Gryc

Hello everyoneI inform you in advance that this is

04-12-2019 14:53

Lothar Krieglsteiner Lothar Krieglsteiner

Hello together, does somebody have: DONADINI J.-

03-12-2019 10:36

Thomas Læssøe

Pale, long-stemmed, recalling H. seminis-alni; ap.

24-11-2019 19:03

Mirek Gryc

They grew on plant debris soaked in faeces togethe

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Pyreno on Alnus glutinosa
Enrique Rubio, 29-12-2015 00:41
Enrique RubioHi to everybody

I need your help with this fungus that forms superficial black, lageniform, ostiolate perithecia, up to 0.45 mm high,  0.2 mm broad with necks 0.1 mm in diameter, singly or clustered in groups of several perithecia covered by a copious whitish or greenish blue, aerugineous subiculum. Non stromatic or very inconspicually stromatic.

The irregulary disposed clusters covering several cm on rotten wood of Alnus glutinosa at the Botanical garden of Gijón, at the north of Spain at the sea level.

The narrowly clavate asci, 8-spored but four of them aborted, 44-58 x 4-5 microns, have an strongly refringent apical apparatus not really Melzer positive. The ascospores are hyaline, smooth, biguttulate, one-celled, 4.9-5.8 x 2.6-3.1.

I don not have any good track, but perhaps you could help me?

Thanks in advance

  • message #39852
  • message #39852
Jacques Fournier, 29-12-2015 09:06
Jacques Fournier
Re : Pyreno on Alnus glutinosa
Hola Enrique,
nice find! I would suggest to dig into Boliniales but I have no genus to propose.
Amplistroma might be considered too but it has consistently globose ascospores.
Can you check the presence of a germ pore on ascospores? They are minute and hyaline, it might be challenging.
Good luck,
Enrique Rubio, 29-12-2015 11:09
Enrique Rubio
Re : Pyreno on Alnus glutinosa

Hi Jacques

With the kind permission of Jesús Linde, allways the collector, I could send you a part of this collection together with A. michelianum. Do you like it?

Thanks a lot, as allways!


PD. I couldn't see any germ pore at the ascospores

Jacques Fournier, 29-12-2015 12:15
Jacques Fournier
Re : Pyreno on Alnus glutinosa
yes, great!