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05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Hymenoscyphus species
Nicolas VAN VOOREN, 26-11-2014 18:26
Nicolas VAN VOORENAnother collection from Corsica, on dead root of a bush (a sort of Genista). This belongs to the genus Hymenoscyphus but no idea of the species.
Apothecia Ø 1-3 mm, stipitate.
Ectal excipulum of textura prismatica, with hyphae 5–13 µm wide. Medullary excipulum of t. intricata. Asci 140–170 × 14-15 µm, with crozier, 8-spored, pars spor. ~80 µm, apical ring IKI + (bb). Paraphyses Ø 4-5 µm, with numerous but low refractive VBs. Spores fusoid, sometimes inequilateral, more rarely shoe-shaped, 21-26 (28.5) × (6) 7-8.5 (9) µm, OCI=4.5, rarely with a central septum (but not in asci).

Any suggestion?
  • message #32330
  • message #32330
Hans-Otto Baral, 26-11-2014 20:23
Hans-Otto Baral
Re : Hymenoscyphus species
Hi Nicolas 

you don't have a photo of  the apical ring in IKI?

I have no idea indeed. Do you think the spores are heteropolar? Is it possible to say for every spore which is the upper end?

Zotto