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03-07-2016 20:56

Miguel Ãngel Ribes Miguel Ángel Ribes

Good nightThis Sarcoscypha, 1-1,5 cm diam., was fo

03-07-2016 22:47

Salvador Tello

Hola a todos. Estos pseudotecios los recogí en m

02-07-2016 17:59

Steve Clements

Bonjour,Cet hyphomycete jaune etait sur un bûche

03-07-2016 18:29

Bernard Declercq Bernard Declercq

Hi, Collected in October 1992 on decaying petiole

03-07-2016 15:59

Jakob Schneller Jakob Schneller

Dear collegues   I have recently found this fun

03-07-2016 15:45

Castillo Joseba Castillo Joseba

en madera de fagussaludosJoseba

01-07-2016 21:36

Castillo Joseba Castillo Joseba

no se si alguien puede darme alguna sugerenciaJose

01-07-2016 02:17

Viktorie Halasu Viktorie Halasu

Good evening,I would like to ask your opinion on t

17-06-2016 18:20

Luc Bailly Luc Bailly

Bonjour à tous,Que pourrait-il y avoir comme Sowe

01-07-2016 21:48

Castillo Joseba Castillo Joseba

en zona descortezada de haya (Fagus) vivaParece un

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Cistella geelmuydenii?
Philipp Eschmann, 05-04-2022 15:28
Philipp EschmannGrüezi

I found this on Corylus avellana. Apothecia are white when fresh and up to about 0.3mm in diameter. 

The spores in the picture measure 4.7 - 7.4 x 2.4 - 3.7µm  Q = 1.7 - 2.4
Ascus apex is hemyamiloid (didnt check KOH+IKI, only IKI), with croziers 

It seems to fit Cistella geelmuydenii quite well. Can anyone confirm?

Thanks in advance & many greetings
Phil Esc
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Stip Helleman, 05-04-2022 21:06
Stip Helleman
Re : Cistella geelmuydenii?
Dear Phil,

To me this looks like a Hyphodiscus, I think a long time ago I named a collection like this also C. geelmuydenii. Probably C. geelmuydenii is a Hyphodiscus too. Check for Fungal remnants under the Fruitbodies and if you find a anamorph previous known as Catenulifera

Cheers,

Stip
Hans-Otto Baral, 05-04-2022 21:43
Hans-Otto Baral
Re : Cistella geelmuydenii?
I have no good concepts in Cistella, but it could be geelmuydenii, except that the spores are much wider than usual (5-8 x 2-2.5). But when  measure your photo I get 2.5-3 µm.

The ectal excipulum is actually somewhat gelatinized which would point to a Hyphodiscus.

Unai Fernandez sent me a few days ago a collection which I considered to be C. geelmuydenii. But that had narrower spores and totally thin-walled exciple. I advised him to take a sequence as I am curious, because he considered Hyphodiscus as a possibility. There are so few sequences of Cistella in GenBank.
Philipp Eschmann, 06-04-2022 17:56
Philipp Eschmann
Re : Cistella geelmuydenii?
Thanks for your comments.

I tried to find that anamorph and saw some conidia that might or might not fit. But as always with anamorphs, I only saw conidia but destroyed the conidiophores completely during preparation. I also remeasured the spores in the picture and some additional spores, with the same results. There are a lot of fungal remnants on the wood but I can't say if the fungus growa on it. I'll give up on this one, this is too difficult for me... :-)