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07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

03-09-2025 21:59

Philippe PELLICIER

La Léchère, Col de la Madeleine, alt 1970m, au s

06-09-2025 21:40

David Chapados David Chapados

Hi, Does somebody know the genus that has those b

07-09-2025 11:34

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hymenoscyph

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

05-09-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour, hi everyone,Do you know where the fungari

05-09-2025 18:53

Robin Isaksson Robin Isaksson

Hi! Spores 1 septate; 12-13 x 3um Hairs 35-75

04-09-2025 20:11

Åge Oterhals

Saccobolus on dear droppings. Can any of you confi

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

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Orbilia tremulae?
Viktorie Halasu, 10-04-2020 20:15
Viktorie HalasuHello,
I've found this Orbilia on wet decorticated wood (probably Salix), on the ground. 
Only a little refractive exudate on paraphyses top + scattered on cells near margin. 
Uppermost spore mostly with SB up, but not always (3rd ascus from left is with SB down). 
I'm not sure if the anamorph belongs to it. 

Given the habitat and spore size, could it be Orbilia tremulae? Isn't it too much orange?
Thank you in advance.
Viktorie
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Hans-Otto Baral, 10-04-2020 21:55
Hans-Otto Baral
Re : Orbilia tremulae?
Hi Viktorie

Could be, but sure we cannot be.  These fusiform spores might be ascospores?

The Dicranidion conidia of O. tremulae would be characteristic.

O. tremulae is probably a common species, but I am often not sure, and our concept is only tentative. With DNA it would be easy - or with a culture or conidia from near apothecia.

Zotto
Lothar Krieglsteiner, 11-04-2020 09:54
Lothar Krieglsteiner
Re : Orbilia tremulae?
... das hätte ich (früher) als coccinella bestimmt. Aber vermutlich ist dies eine Sammelart geworden, wie so vieles.
LG von Lothar
Hans-Otto Baral, 11-04-2020 10:03
Hans-Otto Baral
Re : Orbilia tremulae?
Ja, das ist kompliziert geworden. O. coccinella ha hörnchenförmige Sporen in 16-sporigen Asci. O. tremulae hat eigentlich als NFF das japanische Dicranidion inaequale, aber das passt nur morphologisch. Neben der häufigen O. eucalypti gibt es noch ein paar weitere mit ellipsoiden bis subglobosen Sporen.