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03-07-2020 17:47

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

02-07-2020 21:45

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectado en  tallo

27-06-2020 13:21

Hardware Tony Hardware Tony

I wondered if anyone could help me with this ascom

02-07-2020 07:56

Garcia Susana

Hola, Agradecería vuestra ayuda para la identifi

02-07-2020 13:33

Garcia Susana

Hola, He recogido estos apotecios que crecían en

02-07-2020 16:05

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

02-07-2020 22:07

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectada en Lantar

02-07-2020 19:16

Angel Pintos Angel Pintos

Hello anybody has this article?The relationship be

02-07-2020 15:17

Thomas Læssøe

see https://svampe.databasen.org/observations/100

01-07-2020 18:05

Salvador Tello

Hola a todos.Estas Orbilias crecían sobre madera

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Nemania on Salix
Enrique Rubio, 24-07-2013 18:47
Enrique RubioDear friends:

I need your help for to know this Nemania species that grew on the underside of a piece of wood of Salix alba in a very wet place periodically covered by the water of a lake.


The blackish multiperitheciate stromata are crust of 50 x 25 mm and 1 mm thick covered by a mass of olivaceous fresh discharged ascospores. Ostioles conspicually papillate. The perithecia are ellipsoid and 0.45-0.70 mm long. The tissue beneath the perithecial layer is whitish, soft,extending into the wood.


The asci are long stipitate, 180-207 x 8 microns, pars sporifera 98-107. The apical apparatus is IKI and Mlz. deep blue. Fresh ascospores, 12-17 x 5-6, are brownish olivaceous and they have a short, inconpicuous germ slit probably situated on the more convex side.


I think this fungus is close to Nemania aenea var. macrospora or the Nemania sp. leg. J. Vivant from the wonderfull Fournier's web page.


Have you any idea?


Thanks again

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Jacques Fournier, 24-07-2013 19:16
Jacques Fournier
Re : Nemania on Salix
Hola Enrique!
I find the germ slits on your photos fairly conspicuous, in my experience they are difficult to make out in the variety macrospora. I think it is the typical variety aenea, other features fit well, especially the ecology. Occurrence on periodically submerged wood is something I observed on several occasions for this species.
Anyhow I suggest you compare it with the typical aenea, I am sure you have it in your herbarium!
Cheers,
Jacques
Enrique Rubio, 24-07-2013 20:02
Enrique Rubio
Re : Nemania on Salix
Bonsoir Jacques


No. I have not Nemania aenea var. aenea in my herbarium because I have never gathered it! 
Yes. Maybe you are right and of course you know well this genus, much better than me!
Perhaps the subjective concept of the germ-slit: conspicuous/inconspicuous did me to be wrong.


Your description at the web page says: 'Macroscopically, N. aenea   is much like N. serpens, with which it is easily confused' and in this case it is true because in the field I took it by Nemania serpens.

Thanks a lot again!
Jacques Fournier, 24-07-2013 20:38
Jacques Fournier
Re : Nemania on Salix
in fact they all look like N. serpens, this is why Nemania is great fun!