Accès membres

Mot de passe perdu? S'inscrire

27-03-2026 15:23

Trichopezizella barbata?
Gernot Friebes

Hi,this Trichopezizella deviates from typical T. b

26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
Ã…ke Widgren Ã…ke Widgren

Hello,I found this one in October last year, on r

25-03-2026 10:35

Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

27-03-2026 15:08

Coelomycete on Cirsium
Gernot Friebes

Hi,I'm looking for help with this coelomycete on C

27-03-2026 10:47

Stictis cf. friabilis and literature request
Ã…ge Oterhals

I have tentatively identified this Stictis to S. f

24-03-2026 21:37

Helminthosphaeria
Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

26-03-2026 12:50

Pseudombrophila
David Chapados David Chapados

Hi,I'm having a hard time figuring which Pseudombr

26-03-2026 11:17

asco in Ulmus
Vasileios Kaounas Vasileios Kaounas

Found 11-03-26, in leaf of Ulmus sp. Diameter 2-4

25-03-2026 22:23

Orbilia with resin deposits
Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

24-03-2026 15:44

Leptodontidium cf. trabinellum
Ã…ge Oterhals

I hope someone can confirm the name of this collec

« < 1 2 3 4 5 > »
Otidea tuomikoskii?
Juuso Äikäs, 11-12-2019 23:29
I found these in a Picea abies dominated forest in the middle of October. I measured 15 spores and the results were like this: 11.8-12.8 x 7.7-8.2, Q = 1.5-1.6. A bit larger compared to the info I found on the internet. Still the appearance of the fruitbodies and microscopy looks like it could be O. tuomikoskii and I don't have a better candidate in mind. What do you think?
  • message #60450
  • message #60450
  • message #60450
  • message #60450
Pérez del Amo Carlos Manuel, 12-12-2019 13:27
Pérez del Amo Carlos Manuel
Re : Otidea tuomikoskii?

http://www.ascofrance.fr/search_forum/51266



Saludos,
Carlos
Juuso Äikäs, 12-12-2019 16:47
Re : Otidea tuomikoskii?
Thanks! Seems quite similar to my finding. The spore measurements still cast a doubt for me, especially the width (Q on average 1.5). They are from a fresh spore print in water... maybe that could explain the difference.
  • message #60459
Peter Püwert, 12-12-2019 23:48
Peter Püwert
Re : Otidea tuomikoskii?
Hi, in my opinion isn't O. tuom. The spores size in litt. is 10-11 x 5,5-6,5 by Van VOOREN et al. (2008, 2014, 2015), Carlos 9,5-11 x 5,4-6,7...and I see not different color between outer surface (brownish, distinct furfuraceous) and the hymenial layer (yellowish).

Greetings Peter.
  • message #60465
Andreas Gminder, 13-12-2019 00:12
Andreas Gminder
Re : Otidea tuomikoskii?
Hello,

I second Peter in his opinion that this is not O. tuomikoskii (neither O. papillata which is nearly undistinguishable IMO). Your Otidea seems to have a smooth outer surface and seems to grow single, whereas O. tuomikoskii mostly grows in group and often fasciculate. The shape doesn't suite too well and the unicoloured aopthecia don't look right either, as Peter already mentioned.

all the best,
Andreas
Viktorie Halasu, 14-12-2019 00:07
Viktorie Halasu
Re : Otidea tuomikoskii?
Hello,
did you check the chemical reactions of surface exudates with Melzer + reaction of both exudates and the whole section in KOH? In O. tuomikoskii the whole excipulum turns yellowish in KOH. In the rest of small-spored species the surface exudates (incrustations on surface hyphae) have different reaction in Melzer, changing slowly (in a minute or two) to rounded drops in some species or negative in other. 
Viktorie
Juuso Äikäs, 15-12-2019 15:43
Re : Otidea tuomikoskii?
Thanks for the comments. I didn't check the chemical reactions, but that's good to know. Maybe this is just a boring old O. leporina.