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21-10-2025 21:25

Philippe PELLICIER

Bonjour,J'ai récolté en septembre sur une litiè

21-10-2025 21:34

Margot en Geert Vullings

This cup fungus was found on the ground in a damp

21-10-2025 04:52

Francois Guay Francois Guay

I found what might be Chlorociboria aeruginella on

25-11-2016 13:54

Stephen Martin Mifsud Stephen Martin Mifsud

Hi, I found numerous seeds of Washingtonia robusta

17-10-2025 18:45

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025.

19-10-2025 18:58

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Il y a un peu plus de de

20-10-2025 09:36

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for the following article:Bene

19-10-2025 14:10

Camille Mertens

Bonjour à tous.Asco stipité 1mm de texture appar

23-09-2025 13:31

Thomas Læssøe

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

15-10-2025 16:39

Edvin Johannesen Edvin Johannesen

These tiny (0.2-0.6 mm), white, pulvinate apotheci

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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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