03-10-2025 13:44
Riet van Oosten
Hello, Found by Laurens van der Linde on Populus
13-10-2025 19:05
Louis DENYBonjour forumSur tronc décortiqué de feuillu x,
11-10-2025 20:27
Marcel Heyligen
Found on a barked branch, 14 mm in diameter, of Ro
09-10-2025 22:14
S. RebeccaWe just had the Bavarian Mycology Conference in Au
10-10-2025 00:49
Ethan CrensonHello all, This was found last weekend on a hardw
04-10-2025 02:13
Francois Guay
Hi everyone, I found this Hymenoscyphus growi
03-10-2025 22:17
Francois Guay
Hi everyone, I found this white, star-shaped
Tarzetta aff alnicola
SAAVEDRA MÓNICA,
12-05-2023 00:04
Las medidas esporales son de T. alnicola pero hay unas diferencias que a mí me escapan, como son el mix de gútulas de las esporas (deberían ser bigutuladas) y algunas paráfisis capitadas. Será una var.?
Nicolas VAN VOOREN,
14-05-2023 11:17
Re : Tarzetta aff alnicola
Hola.
Can you give the size of ascospores?
And ecology of this collection?
Can you give the size of ascospores?
And ecology of this collection?
SAAVEDRA MÓNICA,
14-05-2023 17:57
Re : Tarzetta aff alnicola
En bosque de ribera: Alnus, Fraxinus, Corylus, Fagus, Pinus....
Nicolas VAN VOOREN,
14-05-2023 18:15
Re : Tarzetta aff alnicola
The spore size is shorter than in T. alnicola.
I'm not sure that the paraphyses top that you show can be taxonomically valuable.
As there are several types of trees in this place, hard to know the association with the Tarzetta. Maybe it's just a collection of T. cupularis...
I'm not sure that the paraphyses top that you show can be taxonomically valuable.
As there are several types of trees in this place, hard to know the association with the Tarzetta. Maybe it's just a collection of T. cupularis...
SAAVEDRA MÓNICA,
14-05-2023 19:21
Re : Tarzetta aff alnicola
El tamaño de los apotecios era entre 3 y 12 mm.
Miguel Ángel Ribes,
17-05-2023 23:18
Re : Tarzetta aff alnicola
Good night
Monica has sent me some apothecia. Unfortunately they have arrived overripe and quite damaged, but with hundreds of free mature spores in the hymenium. The asci and paraphyses are dead, but I think the spores are alive. All spores are biguttulated, both outside and inside the asci. The spore measurements are these:
(18,8) 20,1 - 22,3 (23,1) × (11) 12,4 - 13,7 (14,3) µm
Q = (1,5) 1,54 - 1,7 (2) ; N = 59
Me = 21,2 × 13 µm ; Qe = 1,6
Monica has sent me some apothecia. Unfortunately they have arrived overripe and quite damaged, but with hundreds of free mature spores in the hymenium. The asci and paraphyses are dead, but I think the spores are alive. All spores are biguttulated, both outside and inside the asci. The spore measurements are these:
(18,8) 20,1 - 22,3 (23,1) × (11) 12,4 - 13,7 (14,3) µm
Q = (1,5) 1,54 - 1,7 (2) ; N = 59
Me = 21,2 × 13 µm ; Qe = 1,6
With these measurements and spore shape, I think it's definitely T. cupularis. Are you agree?
Miguel Ángel Ribes.
Nicolas VAN VOOREN,
18-05-2023 11:49
Re : Tarzetta aff alnicola
I agree.
Miguel Ángel Ribes,
18-05-2023 14:49
Re : Tarzetta aff alnicola
OK, thanks a lot.
SAAVEDRA MÓNICA,
18-05-2023 14:56
Re : Tarzetta aff alnicola
Gracias a ambos.