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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

25-03-2026 10:35

Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

27-03-2026 15:08

Coelomycete on Cirsium
Gernot Friebes

Hi,I'm looking for help with this coelomycete on C

27-03-2026 10:47

Stictis cf. friabilis and literature request
Ã…ge Oterhals

I have tentatively identified this Stictis to S. f

24-03-2026 21:37

Helminthosphaeria
Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

26-03-2026 12:50

Pseudombrophila
David Chapados David Chapados

Hi,I'm having a hard time figuring which Pseudombr

26-03-2026 11:17

asco in Ulmus
Vasileios Kaounas Vasileios Kaounas

Found 11-03-26, in leaf of Ulmus sp. Diameter 2-4

25-03-2026 22:23

Orbilia with resin deposits
Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

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Hymenoscyphus macroguttatus??
ruiz Jose, 20-02-2024 22:58
Hola en resto de herbáceas sin determinar, ¿de tamaño 1a 2 mm
puede encajar en macroguttatus?
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Nihad Omerovic, 21-02-2024 00:32
Re : Hymenoscyphus macroguttatus??
Looks like Rutstroemia, possibly R. henningsiana/paludosa (not sure about croziers).
ruiz Jose, 21-02-2024 08:03
Re : Hymenoscyphus macroguttatus??
Hola Nihad,las estructuras del excipulo no parecen de rutstroemia.
Hans-Otto Baral, 21-02-2024 08:50
Hans-Otto Baral
Re : Hymenoscyphus macroguttatus??
Yes it is rutstroemiaceous from the apical ring shape. Croziers seem to be absent, so R. henningsiana/paludosa would be the choice (now Clarireedia). But the host looks like Equisetum?
Michel Hairaud, 21-02-2024 09:26
Michel Hairaud
Re : Hymenoscyphus macroguttatus??
Hi Ruiz, 

The IKI reaction shows a Sclerotiniaceae-type one rather than Heliotiaceae. (Which excludes Hymenoscyphus) The ectal is not Globulosa so Rutstroemiaceae seems more appropriate
May be another preparation with a different angle in the excipulum would show a more Rustroemiacea-like ectal . 
My guess is the same as Zotto's, depending on presence or not of croziers, in the genera Clareeridia. 
Amitiés
Michel
ruiz Jose, 21-02-2024 10:21
Re : Hymenoscyphus macroguttatus??
Ok,muchas gracias,por la la aclaración,el excipulo no me pareció de Rutstroemia.saludos
ruiz Jose, 21-02-2024 10:22
Re : Hymenoscyphus macroguttatus??
No sabría precisar la planta Zotto.
ruiz Jose, 21-02-2024 10:31
Re : Hymenoscyphus macroguttatus??
Hola Michel,me queda algo del único ejemplar,lo intentaré hacer,pero en estos tamaños tan diminutos me cuesta sacar cortes apropiados.saludos y gracias