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22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

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Cistella yellowish
Viktorie Halasu, 11-03-2021 23:21
Viktorie HalasuHello,

another corpse on bark of laying Ulmus branch, soc. Orbilia aurantiorubra (what else..).
Most spores dead, many germinating and sometimes 1-septate. 
Hairs (17)19-30 × (2.6)2.9-3.5(3.8) ?, some smooth, some with short pegs or blunt spines, not dissolving in heated MLZ. 

Because of the inamyloid asci, I'm thinking on C. chlorosticta but the spores probably don't fit it. 

Viktorie
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Hans-Otto Baral, 12-03-2021 10:03
Hans-Otto Baral
Re : Cistella yellowish
Hi Viktorie

I remember C. chlorosticta with a rather variable spore size. And I see, in my old sample 3141a it is just as in yours: 5.5-7.5 x 2(-2.5).

I am not sure if there is a difference in the ascus apex being either a bit truncate and thin-walled when dead, or more rounded and thick-walled 8with dome).#

Zotto
Viktorie Halasu, 12-03-2021 10:26
Viktorie Halasu
Re : Cistella yellowish
Dear Zotto, thank you for confirmation. 

I admit I havent paid much attention to the ascus apex shape. Here are all the asci I have on photo, all from the apo. on macrophoto. The rest of apoth. were very senescent, no asci, most spores germinating etc. Difference from what - "typical" C. chlorosticta, C. mali, other Cistellas, or some other genera?

Viktorie
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Hans-Otto Baral, 12-03-2021 10:43
Hans-Otto Baral
Re : Cistella yellowish
This is exactly what I meant, truncate and thin-walled. maybe there are two species, onw tih and one without dome.

C. mali I considered synonym with chlorosticta.