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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

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

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

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

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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Hypoxylon ?
Castillo Joseba, 04-08-2015 09:52
Castillo Josebaen rama de  haya (Fagus)

No se si he conseguido ver un asca ??    NO he visto reacción al IKI

Saludos
Joseba
  • message #37263
  • message #37263
  • message #37263
  • message #37263
Lothar Krieglsteiner, 04-08-2015 10:54
Lothar Krieglsteiner
Re : Hypoxylon ?

without comparing the spore size: this looks very much like H. fragiforme to me.


Regards from Lothar

Alain GARDIENNET, 04-08-2015 11:11
Alain GARDIENNET
Re : Hypoxylon ?

Old Hypoxylon fragiforme, with Cosmospora sp. growing on it.


Alain

Eduard Osieck, 04-08-2015 11:19
Re : Hypoxylon ?
Hypoxylon fragiforme should have an amyloid apical ring (J+). According to the synoptic key of http://pyrenomycetes.free.fr/hypoxylon/index.htm there do not exist hemisphaerical species without such an apical ring (at least in Europe). Did you check the KOH reaction (H. fragiforme = orange).

Eduard