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14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

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

25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

12-07-2025 16:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

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?Eutypella on Alnus
Juuso Äikäs, 20-11-2023 15:49
A couple days ago I found some black stromata growing on thin branches attached to a fallen Alnus tree. There appears to be some yellow pigment inside the stromata.

The asci are pedicellate and 8-spored, IKI negative. 

Spore measurements:

5.5 - 7.3 × 1.8 - 2.2 µm, Q = 2.6 - 4.2 ; Avg = 6.4 × 2.0 µm, Qav = 3.2 ; N = 10

I was thinking of Eutypella cerviculata, which I believe at least mostly grows on Alnus. However, these fruitbodies don't have the long necks as seen in many photos. Rather, they are just short stubs. Also, not sure about the yellow pigment.

Any idea what this is?
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Viktorie Halasu, 20-11-2023 23:19
Viktorie Halasu
Re : ?Eutypella on Alnus
Hello,
perhaps Eutypa flavovirens? 
Viktorie 

Juuso Äikäs, 21-11-2023 16:20
Re : ?Eutypella on Alnus
Yes, this sounds like a good suggestion. The inside of the fruitbodies looked greenish yellow in situ ("flavovirens"). Thank you!