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02-08-2025 12:35

Hymenoscyphus albidus ?
éric ROMERO éric ROMERO

Bonjour tous, J'ai trouvé sur pétiole de Fraxin

30-07-2025 20:52

apo on Pteridium aquilinum
Bohan Jia

Hi together,  I've been looking posts in AscoFra

30-07-2025 10:12

Asco1 sur crotte de mouton
Bernard CLESSE Bernard CLESSE

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

31-07-2025 16:32

Carbophilous discomycete - Anthracobia pseudorehmii?
Andreas Gminder Andreas Gminder

Dear collegues,today I found on a very fresh fire

30-07-2025 18:06

Orbilia dryadum?
Stefan Jakobsson

On a decorticated twig of Alnus incana on moist so

29-07-2025 18:59

Ayuda con esta
Castillo Joseba Castillo Joseba

Me mandan el  material seco de Galicia, España,

28-07-2025 12:34

Capronia
Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

28-07-2025 04:59

identification?
Richard Droker

Growing on resin (over moss on Tsuga heterophyll)l

13-06-2025 09:41

Aquatic ascomycete.
Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 16:34

Strossmayeria-like on Fagus
Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

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Hymenoscyphus s.l. ?
Edvin Johannesen, 14-09-2019 18:16
Edvin Johannesen
Rather large apothecia (up to 12 mm) on dead wood, slightly more ochraceous than the photos indicate, excipulum whitish, scurfy/warted. Stem lacking or rudimentary. Spores 17-18 x 5 microns, with several guttules at each end (in water), paraphyses cylindrical, multiguttulate.

Suggestions?

Thanks.
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Edvin Johannesen, 14-09-2019 18:20
Edvin Johannesen
Re : Hymenoscyphus s.l. ?
Misroscopic features.
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Hans-Otto Baral, 14-09-2019 21:23
Hans-Otto Baral
Re : Hymenoscyphus s.l. ?
oh with so few data it is difficult.  Phaeohelotium epiphyllum would be my guess, because the spores look homopolar, but at least the croziers should be verified.
Edvin Johannesen, 15-09-2019 00:37
Edvin Johannesen
Re : Hymenoscyphus s.l. ?
Thanks, I will have a closer look tomorrow.  Can Ph. epiphyllum grpw on dead wood?
Michel Hairaud, 15-09-2019 08:18
Michel Hairaud
Re : Hymenoscyphus s.l. ?

Hi Edwin, and Zotto,


Are the spores actually too long for H. conscriptus ?


 


AMitiés. Michel


 

Edvin Johannesen, 15-09-2019 11:19
Edvin Johannesen
Re : Hymenoscyphus s.l. ?
Here are some ascus bases, in water, phase contrast.
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Hans-Otto Baral, 15-09-2019 21:47
Hans-Otto Baral
Re : Hymenoscyphus s.l. ?
I don't think H. conscriptus, the spores are not scutuloid. Asci obviously have croziers. The pustules on the outside seem to me to fit epiphyllum. The apothecial stalk probably are always very short?

P. epiphyllum may grow on leaves and fruits as well as on all kinds of wood.
Edvin Johannesen, 16-09-2019 10:33
Edvin Johannesen
Re : Hymenoscyphus s.l. ?
Thanks a lot, Zotto. I will study the specimen in that context :)