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07-01-2014 20:46

Bitunicate pyreno on Ammophila arenaria
Enrique Rubio Enrique Rubio

Hi to all Can you help me with this pyreno with r

06-01-2014 23:20

FOUND IN ARECACEAE INFLORESCENCE
Francisco Calaça Francisco Calaça

Hello to all,I found this Ascomycete in dry inflor

03-01-2014 11:02

Recherche article / Search for an article
Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je cherche une copie PDF de l'article suiv

28-12-2013 12:25

Nectria
Salvador Tello

Hola.Tengo esta Nectria que recogí el mes de marz

06-01-2014 20:13

Hymenoscyphus
Salvador Tello

Hola a todos.He encontrado este Hymenoscyphus sobr

05-01-2014 18:59

Recherche article
Marcel Vega

Bonsoir,un copain a besoin de l' article suivant:S

05-01-2014 22:11

Herpotrichia?
Bernard Declercq Bernard Declercq

Hi to everyone,Collected last week on decorticated

05-01-2014 13:16

Ciboria on Helix
Michel Hairaud Michel Hairaud

Hi to everyone, Bonjour à tous Curieux titre et

04-01-2014 22:22

Octospora species
Ralph Vandiest Ralph Vandiest

Hello, I found this species between mosses that w

24-12-2013 23:44

Arbutus menziesii leaf spot
Byrain

I found these leaf spots on fallen Arbutus menzies

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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?