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26-05-2026 22:44

Incrucipulum capitatum ?
Ethan Crenson

Hi all, I think I have Incrucipulum capitatum her

26-05-2026 21:25

small ascomycetes on Quercus sp.
Dirk Gerstner

Hello everyone, I'm completely stumped by this li

22-05-2026 14:44

minute Saccobolus from cow-dung (moist chamber from Portugal)
Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

25-05-2026 16:44

Ascomata under epidermis Carex
François Bartholomeeusen

Hi forum members,During an excursion organised by

23-05-2026 11:44

Coprophilous pyrenomycete wild boar dung
Charles Grapinet Charles Grapinet

Hello, I am having trouble identifying this copro

25-05-2026 16:35

Anamorphe d'Hypomyces aurantius ? sous saule cendré (Salix cinerea)
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

22-05-2026 13:29

Pseudophacidium ?necans on Vaccinium myrtillus
Gernot Friebes

Hi,I am curious to hear your opinion on this mater

23-05-2026 18:57

Mollisia scopiformis
Sylvie Le Goff

Bonjour à tousRécolté sur une branchette de Sal

23-05-2026 23:53

cf Godronia sp.
Moreno Miriam

Bonjour ! Je travaille sur mon mémoire de master

22-05-2026 21:35

A yellow synnemata (coremia) on wood
Steve Clements

Bonjour, I expected this find on old wood on our

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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!