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Mot de passe perdu? S'inscrire

19-01-2021 15:09

Khomenko Igor Khomenko Igor

Hi, On spruce (Picea) needles, small, white disco

20-01-2021 12:29

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectado en Galicia

14-01-2021 18:36

Edvin Johannesen Edvin Johannesen

Apothecia up to 0,5 mm, on decayed wood of Populus

20-01-2021 20:00

Garcia Susana

Hola, Estoy buscando la descripción de Mycosphae

19-01-2021 10:27

Enrique Rubio Enrique Rubio

Could this synnematous hyphomycete be a Spiropes s

14-01-2021 17:08

Malcolm  Greaves Malcolm Greaves

A large group of what I expected to be Peziza were

20-01-2021 19:56

Enrique Rubio Enrique Rubio

Perithecia non stromatic, clypeate, inmersed under

20-01-2021 15:58

Juuso Äikäs

Last February I found these fungi growing on a fal

06-01-2021 21:01

Andrew N. Miller Andrew N. Miller

Dear Friends,  I would like to obtain a collectio

20-01-2021 11:04

Marek Wolkowycki Marek Wolkowycki

Bialowieza Forest, on dead fruiting bodies of Skel

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Ombrophila violacea?
Marek Capoun, 26-11-2020 20:43
Marek CapounHello everybody, I need help with the determination of an Ombrophila on the fallen trunk (Alnus, probably, or Acer, maybe). Collected 1.11.2020, altitude cca 300 meters.
I thought it could be Ombrophila violacea or O. pura, but the ascospores are smaller than they should be.
Apos max. 6 mm on average, sessile or very shortly stalked, pink or rather pinkish white. Medullary excipulum gelified, in the tissue found conidiophores (really?). Ectal excipulum with text. prismatica (with incrustation?). Ascospores ellipsoid, (5.3) 5.7 - 6.6 (7.6) × (3.5) 3.7 - 4.1 (4.2) µm with 2 LBs and sometimes some others smaller.
There was some apos last year on that place too, on this same substrate and at the same time, but it was not examined by microscopy then.
Are such information and photos sufficient for a determination?
Thanks a lot.
Marek
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Hans-Otto Baral, 26-11-2020 22:16
Hans-Otto Baral
Re : Ombrophila violacea?
Yes, I guess this belongs in the scope of O. violacea. There are samples in my folder that are close: VII.2013 and IX.2014.

But I ask myself how heterogeneous this complex would be when sequenced.

There are no conidiophores in the medulla, this must be hyphae with exudate or crystal sheath.

Alnus and Acer are easily distinguished by wood anatomy.

Zotto
Marek Capoun, 26-11-2020 23:30
Marek Capoun
Re : Ombrophila violacea?
Dear Zotto, thanks for the post, confirmation and correction, and special thanks for placing my photos into your folders ;) Well, and I'm going to learn the anatomy of wood :))
Marek
Hans-Otto Baral, 27-11-2020 08:22
Hans-Otto Baral
Re : Ombrophila violacea?
Radial, tangential and cross sections would promptly show if it is Alnus or Acer or something else.