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05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

06-07-2025 19:36

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

07-07-2025 19:22

David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

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Orbilia/Hyalorbilia on "pyrenomycete"
Edvin Johannesen, 24-05-2021 21:41
Edvin Johannesen
Hi!

This tiny (0.2-0.3 mm), orange one is growing on a stromatic sordariomycete (overgrown by something alike Echinosphaeria) on Salix caprea. I have no ID on the sordario yet.  Southern Norway in humid ravine.

The Orbilia/Hyalorbilia has broadly ellipsoid spores with one distinct SB at each pole.  Measure ca. 2.5-3 x 5 micr.  Spores appear more subglobose in water and more ellipsoid with slightly pointed ends in CB (see photos).  Dead asci (I think) do not look truncate. Paraphyses broadly cylindrical.

Suggestions based on this limited information?
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Hans-Otto Baral, 24-05-2021 22:24
Hans-Otto Baral
Re : Orbilia/Hyalorbilia on "pyrenomycete"
This is not orbiliaceous, perhaps a Hyaloscypha. Iodine reaction of asci is negative?
Edvin Johannesen, 24-05-2021 22:36
Edvin Johannesen
Re : Orbilia/Hyalorbilia on "pyrenomycete"
I will check IKI. (Why is is it not orbiliaceous?)

Thanks.
Hans-Otto Baral, 24-05-2021 23:01
Hans-Otto Baral
Re : Orbilia/Hyalorbilia on "pyrenomycete"
The conical ascus apex would be very unusual, also there are no spore bodies I think.
Edvin Johannesen, 25-05-2021 16:28
Edvin Johannesen
Re : Orbilia/Hyalorbilia on "pyrenomycete"
You were right, of course, Zotto. The asci apices are hemiamyloid (brownish in Lugol, haven't checked KOH pretreatment). I initially thought there were two species growing side-by-side on the pyrenomycete, but now I realise that the Cistella-like whitish ones and the more reddish, smooth ones are the same. I attach a few photos og the paler, Cistella-like apothecia. I suspect I have the same as Enrique found back in 2014: http://ascofrance.fr/search_forum/27839

I think I have seen gelatinised hyphae. But the marginal "hairs" I have not spotted in the microscope.  Has the Hyphodiscus "Cistella" been further evaluated?


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Hans-Otto Baral, 25-05-2021 17:53
Hans-Otto Baral
Re : Orbilia/Hyalorbilia on "pyrenomycete"
The limits to Hyphodiscus are not yet clear and there are no news about that.
Edvin Johannesen, 25-05-2021 18:06
Edvin Johannesen
Re : Orbilia/Hyalorbilia on "pyrenomycete"
OK, thanks!