24-04-2024 21:54
éric ROMERO
Bonjour, J'ai trouvé ce Lasiobolus sur laissées
23-04-2024 15:18
Lothar Krieglsteiner
... but likely a basidiomycete. I hope it is o.k.
23-04-2024 13:17
Edouard Evangelisti
Bonjour à tous, Je viens de récolter ce que je
23-04-2024 21:49
Ethan CrensonHello all, A friend recently found this orange as
22-04-2024 11:52
Zuzana Sochorová (Egertová)
Hello,I made a loan of a collection of Microstoma
11-01-2022 16:36
Jason Karakehian
Hi does anyone have a digital copy of Raitviir A (
22-04-2024 20:38
Miguel Ángel Ribes
Good afternoon.Does anyone know this anamorph?It g
19-04-2024 14:28
B Shelbourne
Cudoniella tenuispora: Distinctive macro and habit
This pyreno was growing on the dead wood of a shrub (Myoporum) on the sand dunes close to the sea. I don't understand its features and need your help.
Thanks in advance,
zaca
Some data:
Spores: 1-septate, brown, ellipsoid with round ends, dimensions (mostly measured inside the asci):
(9.1) 9.6 - 11.7 (12.8) × (4.9) 5.3 - 6.1 (6.4) µm
Q = (1.4) 1.6 - 2.2 (2.4) ; N = 28
Me = 10.8 × 5.7 µm ; Qe = 1.9
Hymenium: I-
Ascus tip: I+ blue
have a closer look at the spores, they are not septate. It is a Nemania, N. maritima (Xylariaceae).
If you manage to make a better preparation you will see that the spores have a short germ slit.
Cheers,
Jacques
Firstly, I did not look closely at the spores; Right, they may look septate, but they are not; This was one of the points in doubt because with septate spores I could not go anywhere ...
Secondly, you should know this pyreno very well, since you could recognize it immediately, even with wrong accompanying data;
I looked at the topics in AscoFrance and found one by Henrique Rubio:
Http://ascofrance.com/forum/23616/nemania-maritima
where in 2013, he was able to identify the first specimen for Spain. So it's a rare species for sure.
I will look at it better in a new preparation, but as Henrique pointed out in his topic, the germ slit is difficult to observe.
Finally, can you send me a copy of the following document?
Ju Y.-M. & Rogers J. D. 2002. - The genus Nemania (Xylariaceae). New Hedwigia, 74 (1-2): 75-120
Are there any other useful references?
I do not know whether this is relevant or not, but the epithet "maritima" is certainly linked to sea influence, and my specimen was found on the sand dunes near the Atlantic Ocean.
My very best regards,
zaca
The pdf is on its way.
Cheers,
Jacques
Thanks again, Jacques.
Best regards,
zaca
Jacques
As promised I return to the microscopic observation to search for evidences of the germ slit. I found many, but again the preparation was not so good as it should. On the other hand, some slit to be observed demands to unfocus the spore and the result is a poor photo. Most of the germ slit are straight but other are curved. Anyhow I compile some of these photos and drop them into a larger one, that at the end I had to split because of the size of the file.
Regards,
zaca
