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29-08-2025 19:04

Thomas Flammer

Spores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.

28-08-2025 17:24

Thomas Flammer

I know, that this is not the real topic of this fo

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

24-08-2025 21:59

Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

27-08-2025 12:02

Pavol Palo

Hello dear friendsI would like to ask for sharing

25-08-2025 17:37

François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

24-08-2025 21:30

Ethan Crenson

Found yesterday in a New Jersey park.  An Orbilia

21-08-2025 18:09

Edmond POINTE Edmond POINTE

Bonjour Amis mycologues.Trouvé sur crottin de che

22-08-2025 18:10

Ethan Crenson

Hello everyone,  I found what I think might be P

20-08-2025 19:04

Ethan Crenson

Hello, This asco was found on the same wood as my

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Helotiales on Rhododendron
Hans-Otto Baral, 25-08-2014 16:14
Hans-Otto BaralHi

no idea of the genus or species of this fungus which I found at 2000 m in the calcarean Alps (18.8.2014, Graubünden, S of Scesaplana), on Rhododendron ferrugineum attached decorticated twigs (exposed, completely dry when collected, therefore drought-tolerant).

Ap. rehydr. 350-550 µm diam. Asci *40-50(-65) x 8-9(-10) µm, +33-40(-53) x 7-8 µm, broadly sessile or somewhat narrowed in a longer stalk, without croziers, IKI-. Sp. *8-9.8 x 3-3.3 µm. Paraph. cylindrical, +/- flexuous, *1.8-2 µm wide, apically sometimes forked, without VB-contents. Excipulum of hyaline short-prismatic to anguar cells running under a c. 20-40° angle at flanks, thin-walled, at base slightly gelatinized, at margin a t. porrecta protruding 20 µm beyond hymenium, running out in smooth, hyaline, short, pauciseptate, thin-walled hairs that are often covered by dark yellowish-brown rough exudate.

I do not think that the fungus is mollisioid (Pyrenopeziza), perhaps rather encoelioid or hyaloscyphaceous. My database helps nothing, and also with Remler and B. Eriksson I did not succeed.

Zotto


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Martin Bemmann, 25-08-2014 16:35
Martin Bemmann
Re : Helotiales on Rhododendron
Hi Zotto
How about Encoeliopsis rhododendri?
Regards
Martin
Hans-Otto Baral, 25-08-2014 16:42
Hans-Otto Baral
Re : Helotiales on Rhododendron
That was among my hopes, but that species has much larger spores (12-20 x 3.5-4.5 in Groves 1969) and no hairs, and grows on capsules and leaves.

Zotto