Accès membres

Mot de passe perdu? S'inscrire

13-01-2026 10:13

Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

13-01-2026 07:14

Danny Newman Danny Newman

Neodasyscypha cerina on indet decorticate logThe S

13-01-2026 09:10

Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

13-01-2026 08:49

Danny Newman Danny Newman

Coccomyces sp. on fallen Rhododendron leavesPretty

12-01-2026 22:02

Ethan Crenson

Hello all, I am hoping someone will have some ins

13-01-2026 07:57

Danny Newman Danny Newman

cf. Bombardia on indet. decorticate woodAppalachia

13-01-2026 07:51

Danny Newman Danny Newman

Atrocalyx sp. on indet. herbaceous stemAppalachian

11-01-2026 20:35

Josep Torres Josep Torres

Hello.A very tiny pyrenomycete sprouting sparsely

« < 1 2 3 4 5 > »
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).

  • message #29902
  • message #29902
  • message #29902
  • message #29902
  • message #29902
  • message #29902
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).

  • message #30035
  • message #30035
  • message #30035
  • message #30035
  • message #30035
  • message #30035
  • message #30035
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.