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09-08-2022 20:06

Stephen Mifsud Stephen Mifsud

I have found an interesting aspergillus on flowers

13-08-2022 17:18

Stephen Mifsud Stephen Mifsud

I assumed these are weak colonies of Neurospora on

18-08-2022 17:50

Thomas Læssøe

https://svampe.databasen.org/observations/10283042

10-08-2022 15:45

Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

02-08-2022 17:48

Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

16-08-2022 20:07

Bernard Declercq Bernard Declercq

Good evening,Who could be so kind to supply me fol

07-01-2014 23:04

Michel Hairaud Michel Hairaud

Bonjour à tous, Hi to all. This tiny bright yell

16-08-2022 15:50

Thomas Læssøe

https://svampe.databasen.org/observations/10283169

23-07-2022 20:47

Stefan Jakobsson

I made an abundant collection of some Preussia/Spo

15-08-2022 20:36

Marcus Yeo

While in NE Scotland recently I made a couple of c

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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,
Jacques
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!