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30-09-2025 20:23

Rot Bojan

Hello!I'm asking for your opinion. I think it's an

30-09-2025 22:08

Philippe PELLICIER

Bonjour, cette Otidea de petite taille de 1-2 cm c

29-09-2025 10:59

Jean-Luc Ranger

Bonjour,  Je ne sais trop où chercher ce champi

28-09-2025 12:30

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello, this fungus nicely fits Lasiosphaeris hirsu

26-09-2025 23:41

Lieve Deceuninck Lieve Deceuninck

Bonjour members du forum. Merci d'avance pour tout

24-10-2024 14:39

Jean-Luc Ranger

Bonjour à tous,Découvert sur un terrain calcaire

26-09-2025 15:51

Jean-Luc Ranger

Bonjour, voici un ascome poussant sur crotte de la

23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

22-09-2025 20:31

Yanick BOULANGER

BonsoirVoici un ascomycète récolté au alentour

24-09-2025 00:49

Jorge Hernanz

Bonsoir. Estoy estudiando éste diminuto Ascomycet

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Wettsteinina? on Eriophorum angustifolium
Marcus Yeo, 29-07-2014 20:54

I found this bitunicate ascomycete growing on dead leaves of Eriophorum angustifolium.


Pseudothecia are immersed, ca 100-150 µm diam


Asci are bitunicate, ovoid, 8-spored, 38-57 x 22-29 µm (only 2 asci measured). Sometimes immature and post-mature asci are present in the same pseudothecium.


Spores are mostly 22-25 x 5-6(-7) µm, in one sample rather larger (<31 µm long). They are 1-septate, slightly constricted at septum, and sometimes splitting at the septum into 2 parts. Spores are hyaline, becoming dark brown when old, with 2 large oil bodies/cell when fresh, and with a thick gelatinous sheath. The spore wall appears to be minutely verruculose in old spores.


I think it belongs in the Pseudosphaeriaceae. I had wondered about Monascostroma innumerosum but the thick gelatinous spore sheath seems to rule out this species and suggests Wettsteinina. The closest fit in Shoemaker & Babcock's 1987 paper on Wettsteinina is probably W. junci, but the description doesn't fit in all respects, e.g. spore dimensions are given as 26-31 x 9-11 µm (i.e. rather larger than in my specimen). Another possibility is W. waltraudae, described by Scheuer and not included in Shoemaker & Babcock.


I'd be grateful for any suggestions.


Thanks


Marcus

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