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Mot de passe perdu?

16-09-2025 12:53

Encoeliopsis rhododendri

Philippe PELLICIER

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

03-09-2025 12:44

Ascolichen on Blechnum?

Enrique Rubio

Enrique Rubio

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

15-09-2025 14:40

Engler & Prantl, Nat. Pflanzenfam. (Ed. 2) 1938

Nicolas VAN VOOREN

Nicolas VAN VOOREN

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

14-09-2025 22:16

Cheilymenia stercorea

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Otidea platyspora or something else?

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Pseudocoprotus catenipilus ???

Blasco Rafael

Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Hymenoscyphus on Rubus

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

11-09-2025 16:57

Marthamycetales revision published

Jason Karakehian

Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Strickeria kochii?

Marcel Heyligen

Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

dark- and small-spored Sordariomycetes on Fraxinus - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

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Hymenoscyphus on branches of rubus?

Ralph Vandiest, 26-09-2013 18:30

Ralph Vandiest

Hello,

I found these stalked species on dead rubus branches. They are ivory coloured, not reddening when damaged and measure between 1&1,5mm. Spores are scuteloid 3,5/4x19/25µm and the asci are 6/10x95/103. Can anyone tell me what this is?

regards,
Ralph

Hans-Otto Baral, 26-09-2013 20:54

Hans-Otto Baral

Re : Hymenoscyphus on branches of rubus?

I would place it in hymenoscyphus scutula, despite the apparent absence of distinct bristles at the spore ends.

Zotto

Ralph Vandiest, 26-09-2013 22:01

Ralph Vandiest

Re : Hymenoscyphus on branches of rubus?

Hello Zotto,

thanks for your answer. I don't see the reddening either. Can it be because my sample is already 1 week old?
PS I will take again a look at the spores to see if I can find any bristels.

regards,
ralph

Hans-Otto Baral, 26-09-2013 22:28

Hans-Otto Baral

Re : Hymenoscyphus on branches of rubus?

Did you read about reddening? On your photpo I see slight red-brown areas. This is by oxidation of the guttules (VBs) in the paraphyses, and a general feature in Hymenoscyphus.

Ralph Vandiest, 26-09-2013 22:31

Ralph Vandiest

Re : Hymenoscyphus on branches of rubus?

no I didn't read about reddening but I saw it in a key to this genus. sorry, my mistake