31-08-2025 17:32
Michel Hairaud
Bonjour, Pas d'identité trouvée pour cette réc
31-08-2025 19:41
Enrique Rubio
Hi to someone.I need to download this issue of Sve
31-08-2025 14:34
Thomas FlammerI have found a Rutstroemia on abt. 2000 m on Alnus
29-08-2025 19:04
Thomas FlammerSpores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.
28-08-2025 17:24
Thomas FlammerI know, that this is not the real topic of this fo
29-08-2025 05:16
Francois Guay
I think I may have found the teleomorph of Dendros
27-08-2025 12:02
Pavol PaloHello dear friendsI would like to ask for sharing
25-08-2025 17:37
François Freléchoux
Bonjour,Nous avons trouvé samedi dernier à l'ét
Dear 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
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
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!