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Mot de passe perdu? S'inscrire

18-07-2025 23:03

Help with some conidia.
Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Una para ID 833
Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

literature request
Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

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Tarzetta aff alnicola
SAAVEDRA MÓNICA, 12-05-2023 00:04
SAAVEDRA MÃNICALas 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.?
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Nicolas VAN VOOREN, 14-05-2023 11:17
Nicolas VAN VOOREN
Re : Tarzetta aff alnicola
Hola.
Can you give the size of ascospores?
And ecology of this collection?
SAAVEDRA MÓNICA, 14-05-2023 17:57
SAAVEDRA MÃNICA
Re : Tarzetta aff alnicola
En bosque de ribera: Alnus, Fraxinus, Corylus, Fagus, Pinus....
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Nicolas VAN VOOREN, 14-05-2023 18:15
Nicolas VAN VOOREN
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...
SAAVEDRA MÓNICA, 14-05-2023 19:21
SAAVEDRA MÃNICA
Re : Tarzetta aff alnicola
El tamaño de los apotecios era entre 3 y 12 mm.
Miguel Ángel Ribes, 17-05-2023 23:18
Miguel Ãngel Ribes
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

With these measurements and spore shape, I think it's definitely T. cupularis. Are you agree?

Miguel Ángel Ribes.

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Nicolas VAN VOOREN, 18-05-2023 11:49
Nicolas VAN VOOREN
Re : Tarzetta aff alnicola
I agree.
Miguel Ángel Ribes, 18-05-2023 14:49
Miguel Ãngel Ribes
Re : Tarzetta aff alnicola
OK, thanks a lot.
SAAVEDRA MÓNICA, 18-05-2023 14:56
SAAVEDRA MÃNICA
Re : Tarzetta aff alnicola
Gracias a ambos.