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30-03-2026 12:18

Demande d'aide
Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

31-03-2026 08:19

Daldinia childiae parasité
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-03-2026 12:03

Dumontinia on Ficaria?
William Slosse William Slosse

Hello all,On 27/03/26, in Kraaiveld in Wingene (Be

25-03-2026 10:35

Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

28-03-2026 17:41

Mollisia sur Molinia
Louis DENY

Bonjour forum,Mollisia trouvée sur tige de Molini

30-03-2026 09:53

Lachnum mollissinum ?
Yanick BOULANGER

BonjourVoici des petites fructifications poilues s

27-03-2026 10:47

Stictis cf. friabilis and literature request
Ã…ge Oterhals

I have tentatively identified this Stictis to S. f

28-03-2026 07:55

White Orbilia with allantoid spores
Marc Detollenaere Marc Detollenaere

Hello everybody,Yesterday I found a number of whit

26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
Ã…ke Widgren Ã…ke Widgren

Hello,I found this one in October last year, on r

27-03-2026 15:23

Trichopezizella barbata?
Gernot Friebes

Hi,this Trichopezizella deviates from typical T. b

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Sordariomycetes sp.?
Bernard Declercq, 03-09-2023 11:40
Bernard DeclercqHi friends,

Collected on dead culms of bamboo (Phyllostachys sp.):
Ascomata non-stromatic, immersed, scattered, lifting the periderm, globose, about 250 µm diam., with papillate neck protruding-the surface, black. Asci cylindrical, uniseriate 8-spored,. 57-75x5.5 µm, with enlarged base. Ascospores ellipsoid, 7.5-8x3-4 µm, 1-septate, slightly constricted at the septum, inconspiciously striate, with 1(2-3) large guttules per hemispore, golden yellow.
Paraphyses filiform, guttulate.
I don't find even a matching genus name for this one. Your help is welcome.

Best regards,

Bernard
  • message #76835
  • message #76835
Enrique Rubio, 03-09-2023 11:48
Enrique Rubio
Re : Sordariomycetes sp.
Hi Bernard
Look for an immature Roussoella.
Regards
Bernard Declercq, 03-09-2023 12:03
Bernard Declercq
Re : Sordariomycetes sp.
Thank you very much, Rubio.
Indeed, this is Roussoella minutella (Penzig & Sacc.) Aptroot ss. Aptroot(?)
R. minutella is a synonym of R. pustulans according Hyde (1997) but the collection here has smaller ascospores (7.5-9x3-4 µm vs. 10-16x4-5 µm).
R. minutella ss. str. is described from Indonesia. Maybe the European collections (a.o. Candoussau?) are in need of a new name.

Bernard