
18-07-2025 23:03
Hello.Fruitings between 51 and 130 microns in tota

16-07-2025 17:34

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Bonjour, Voici une espèce de (?) Hyaloscyphace

16-01-2023 21:31

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55
Yanick BOULANGERBonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17
Yanick BOULANGERBonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52
Gernot FriebesHi,I wanted to share this collection on Rubus idae

14-07-2025 13:37
Gernot FriebesHi,do you think this collection could be R. ulmari
White Hymenoscyphus on bark
Nicolas VAN VOOREN,
16-06-2019 11:54

Here is a Hymenoscyphus species growing on bark (probably Fagus) in a wet place.
Apothecia Ø 1-1.8 mm, sessile or short-stalked, pure wihite.
Ectal excipulum of t. prismatica.
Asci without crozier, pars sporifera 26-32 µm, IKI+ (bb)
Paraphyses without VB
Ascospores 11-14 (18) × 3-4 µm, sometimes with a septum (only when ejected), OCI 1-2.
H. phyllogenus seems close, but the substrate is different.
Hans-Otto Baral,
16-06-2019 12:21

Re : White Hymenoscyphus on bark
Hi Nico
this reminds me strongly of my Hymenosc./Phaeohelotium "Cagne" on coniferous wood. See my folder "monticola".
The VBs in the paraphyses are multiguttulate and vary between faintly and medim refractive.
So far 3x on coniferous wood in Vosges.
Did you look for the wood anatomy? In cross section coniferous wood is easily determined, and Fagus also.
Zotto
this reminds me strongly of my Hymenosc./Phaeohelotium "Cagne" on coniferous wood. See my folder "monticola".
The VBs in the paraphyses are multiguttulate and vary between faintly and medim refractive.
So far 3x on coniferous wood in Vosges.
Did you look for the wood anatomy? In cross section coniferous wood is easily determined, and Fagus also.
Zotto
Nicolas VAN VOOREN,
16-06-2019 12:45

Re : White Hymenoscyphus on bark
Not easy to study the anatomy of rotten bark... As there were some Picea abies in the same place, this is an option.
I agree that this H. "Cagne" could fit, although the VB in the paraphyses are not so distinct in my collection.
I agree that this H. "Cagne" could fit, although the VB in the paraphyses are not so distinct in my collection.
Hans-Otto Baral,
16-06-2019 16:39

Re : White Hymenoscyphus on bark
Ah yes, you wrote bark. Bark is not easy to identify. Is there no adherent wood? Fagus bark has a very characteristic inner side.
Nicolas VAN VOOREN,
16-06-2019 17:50