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30-06-2025 16:56

Septoria on Impatiens glandulifera
Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Help with a Pleosporal.
Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Black erumpent on Populus (Ascodichaenaceae?)
Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Pezizales --Pyronema?
Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

RECHERCHE ARTICLE
ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

is this a Hymenoscyphus on Nothofagus?
Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Scutellinia cejpii ?
Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

unknown discomycete from Brooklyn
Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Literature Request
Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Salvia leaf parasite
Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

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Memnoniella echinata ?
Alain GARDIENNET, 22-12-2014 22:31
Alain GARDIENNET

Bonsoir forum,


J'ai trouvé sur graminée des amas (sous forme de petits coussinets) de conidies brunes fortement échinulées, subglobuleuses avec un diamètre proche de 12 µm. Les conidiophores sont morts.


Pourrait-il s'agir de Memnoniella (ex. Stachybotrys) echinata ?


Je n'y crois guère, mais je ne sais dans quelle direction chercher.


Alain


 

  • message #32829
Walter Gams, 22-12-2014 23:56
Walter Gams
Re : Memnoniella echinata ?
Cher Alain, Non, c´est une espèce d´Arthrinium, mais je ne sais pas laquelle. 
Cordialement  Walter
Chris Yeates, 23-12-2014 04:30
Chris Yeates
Re : Memnoniella echinata ?
It certainly does not look like any of the Arthrinium species in Martin Ellis's Mycological Paper 103 (1965) - perhaps it is undescribed?
amitiés
Chris
Alain GARDIENNET, 23-12-2014 07:26
Alain GARDIENNET
Re : Memnoniella echinata ?

Hi nocturnal mycologists,


You're right, it fits better with the genus Arthrinium : macroscopically it reminds me, and the colour of conidiospores fits well, conidiogenese too. But I've never seen a such shape for ascospores in that genus. But if the specialists that you are don't know it ...


Thanks to you for help. I keep  on the side this Arthrinium sp. ("echinata").


Alain