09-11-2025 13:20
Josep Torres
Hello.A tiny ascomycete, appearing as erupting gra
08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
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.