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02-02-2026 14:55

Lichénicole sur Lobaria
Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Lichénicole sur Peltigera
Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Lichenicole hypocreale
Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Scutellinia hirta ? sur souche moussue
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Lambertella sur Olea
Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

Calycina ?
éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Small hairy discs on Castanea
Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

29-08-2025 05:16

Teleomorph of Dendrostilbella smaragdina ?
Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

30-01-2026 21:20

Bryocentria brongniartii und B. metzgeriae mit ihrer Anamorphe.
Arnold Büschlen

Bryocentria brongniartii und B. metzgeriae mit ihr

21-01-2026 16:32

Lichenicolous coelomycete
Gernot Friebes

Hi,I need your help with some black dots on a lich

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Helotium sp. on litter of Ledum
Nina Filippova, 19-06-2014 08:08
This smallish Helotium sp. was found on Ledum palustre litter in the bog. May be there will be some tips on species identity ).

Coordinates: N60,891131° E68,688733°, 18.06.2014.

Apothecia smallish, sessile, translucent, grayigh when in water, site single or several nearby on both leaf sides, up to 200 mk in diameter.


Excipulum from prismatic to ellipsoid cells, hyaline, cells with thickened walls, near 12 x 6 mk at base, narrower at edge (4 mk), end cells at edge smooth, cylindrical; asci clavate, with badly recognized crozier, with euamyloid small ring, 33-46.5 x 5.4-6.6 mk; paraphyses filiform, rarely branched, about 1 mk broad; spores fusiform, 7.7 (5.6-8.7) x 1.7 (1.6-1.9) mk (n=11).

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Hans-Otto Baral, 19-06-2014 08:16
Hans-Otto Baral
Re : Helotium sp. on litter of Ledum
Difficult to say. Are there any short glassy caps on some of the "hairs"?

I assume something between Cistella, Hyaloscypha and Olla.

I was reminded a bit of my "Pezizella chapmanii" in my Olla folder, a fungus found on Picea bark.

Zotto
Nina Filippova, 27-06-2014 14:45
Re : Helotium sp. on litter of Ledum
A similar species was found on fallen leaves of other plant (Betula nana). The spores here are distinctly larger. But other microstructures quite remind previous species.

Apothecia sessile, whitish, translucent, up to 500 mk broad, hymenium surface minutely powdery (probably since incrustation of paraphyses).


Excipulum at base from textura globosa, at flanks and edge from prismatica to porrecta, cells with thickened walles; end cells ("hairs") at the edge cylindrical, obtuse, 10-20 mk long, 3-4 mk broad, without incrustations; asci clavate, with barely seen crozier, 53-68 x 8-11.5 mk; paraphyses cylindrical, with obtuse tip, with pale vacuoles, in upper part with minor incrustation or mucous sheath, near 2 mk broad; spores cylindrical, 12.3 (10.6-14.6) x 2.9 (2.7-3.2) mk (n=34).

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Hans-Otto Baral, 27-06-2014 16:23
Hans-Otto Baral
Re : Helotium sp. on litter of Ledum
I suspect this has croziers. Did you test IKI for the asci?

The texture reminds me a bit for a Durella, but only the margin.

Zotto
Nina Filippova, 27-06-2014 18:57
Re : Helotium sp. on litter of Ledum
Yes, asci with croziers.

YKY shows euamyloid reaction.