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Mot de passe perdu? S'inscrire

17-09-2025 19:43

Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

17-09-2025 16:14

Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

17-09-2025 10:50

Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

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Adelphella babingtonii - lacking much brown pigment
Ethan Crenson, 20-08-2025 19:04
Hello,

This asco was found on the same wood as my previous post (Hymenoscypha varicosporoides) which was lying in mud and water in a New York park.  The wood was probably hardwood. There was Fagus, Quercus and Tsuga nearby. 

They are gelatinous and pulvinate. When found they were off-white, the largest about 1cm. 

Spores are thick walled, have two large guttules. They measure:

19.4-20.3 x 11-12.8µm
Me: 19.8 x 12.0µm
Q: 1.56-1.76
Qe: 1.64
N=14

The asci are IKI+ along nearly the entire length.  

Paraphyses are enlarged at the ends, reaching about 4µm. They contain oil content, however, the typical brown pigment is mostly absent.  I left it in the refrigerator to mature a bit and the apothecia turned a tan color and the paraphyses became slightly yellow-brown. 

Excipular elements have a textura globulosa and some cells have finger-like protrusions.

Maybe this lack of pigment is typical of immature specimens?  Could this be something else?

Ethan
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Nicolas VAN VOOREN, 21-08-2025 18:14
Nicolas VAN VOOREN
Re : Adelphella babingtonii - lacking much brown pigment
No doubt, an Adelphella species
Ethan Crenson, 21-08-2025 18:16
Re : Adelphella babingtonii - lacking much brown pigment
Hi Nicolas.  Thanks for the reply.  But isn't Adelphella a monotypic genus?
Nicolas VAN VOOREN, 22-08-2025 08:25
Nicolas VAN VOOREN
Re : Adelphella babingtonii - lacking much brown pigment
One species described, but probably more, especially in USA. See attached ITS tree.
Ethan Crenson, 22-08-2025 16:39
Re : Adelphella babingtonii - lacking much brown pigment
I had a feeling!  I will sequence this collection to see where it fits in.  Thank you for sharing that tree. By the way, I was on the 2023 Korf Foray where PP342557 was collected.