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09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

10-02-2026 17:42

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me donner

10-02-2026 18:54

Erik Van Dijk

Does anyone has an idea what fungus species this m

09-02-2026 20:10

Lothar Krieglsteiner Lothar Krieglsteiner

The first 6 tables show surely one species with 2

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

09-02-2026 11:42

Åge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

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Small round yellow asco on oak in California
Alan Rockefeller, 31-12-2013 10:15
Alan RockefellerSeen at the Yuba Watershed Fungus Fair.   Growing on oak.

Spores (12) 13 (14) x (3) 3.5 (4), smooth, with many small oil droplets.   Asci 100 - 120 x 7 - 8.  Crush mount also showed abundant long threads approx 1 micrometer thick.


 


What could this be?


 


 

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Byrain, 31-12-2013 16:52
Re : Small round yellow asco on oak in California
I remember these too, I think asci images are probably needed?
Miguel Ángel Ribes, 02-01-2014 09:17
Miguel Ãngel Ribes
Re : Small round yellow asco on oak in California
Bisporella?
Alan Rockefeller, 08-01-2014 21:31
Alan Rockefeller
Re : Small round yellow asco on oak in California
Ok, I added some images of the asci.
Alan Rockefeller, 09-01-2014 20:35
Alan Rockefeller
Re : Small round yellow asco on oak in California
Does anyone have any ideas about which species of Bisporella this is?   Is it definitely a Bisporella?   Are any more micrographs needed?
Byrain, 09-01-2014 21:17
Re : Small round yellow asco on oak in California
Alan, maybe try viewing the asci in melzers?  There is some more info here.

http://mushroomobserver.org/comment/show_comment/83332?q=1jVHp?

Hopefully someone else here can weigh in too?
Alan Rockefeller, 11-01-2014 11:46
Alan Rockefeller
Re : Small round yellow asco on oak in California

It has been suggested on Mushroom Observer that this could be Bisporella citrina or Bisporella sulfrina. 

http://mushroomobserver.org/156779?
Alan Rockefeller, 12-01-2014 20:29
Alan Rockefeller
Re : Small round yellow asco on oak in California

When comparing the spores of my observation to other Bisporella citrina observations, the spore shape looks pretty different.   My spores are crescent shaped, while other people report ellipsoid spores.

Compare my pics to http://mushroomobserver.org/128098?