Accès membres

Mot de passe perdu? S'inscrire

19-05-2026 19:47

Xylariaceae?
Andreas Millinger Andreas Millinger

Hello dear community,found this species the second

19-05-2026 12:55

Mollisia sps? with minute spores 2.7 -3.5µm.
Hardware Tony Hardware Tony

After checking Gminder and Otto's library I cannot

19-05-2026 10:27

Peziza phlebospora ?
Patrice TANCHAUD

Bonjour, récolte récente sur terre retournée i

18-05-2026 12:43

Hymenoscyphus fraxineus
Sylvie Le Goff

Bonjour à tousPuis je avoir votre aide sur ce que

19-05-2026 14:56

Unknown cushion-formed with clavate margin hairs
Åge Oterhals

I found this white cushion-formed ascomycete on ro

18-05-2026 19:49

Acrodontium sp?
William Slosse William Slosse

Good evening all,recently I found a portion of a S

18-05-2026 10:13

Teleomorph of Botrytis cinerea?
Lieve Deceuninck Lieve Deceuninck

Dear forum members,I identified this as the teleom

17-05-2026 22:09

Mollisia sp
éric ROMERO éric ROMERO

Bonjour tous, Je sollicite vos avis pour ce Molli

17-05-2026 19:05

Coenogonium pineti
Thomas Flammer

I have found this tiny 200 ym cup shaped apothecia

17-05-2026 16:41

Lachnum
Margot en Geert Vullings

We found this Lachnum on an old Rubus stem.Fruitbo

« < 1 2 3 4 5 > »
Helotiales
Koszka Attila, 31-10-2023 14:55
A beautyful Helotiales, but I don't even know the genus...
Apothecia 2-3 mm in diameter, always with stalk.
Growing on the ground, on dead parts of herbs, always near mosses.
Spores 18-20 x 8-10 um. Asci amiloid.
Any suggestion?
  • message #77260
  • message #77260
  • message #77260
  • message #77260
Hans-Otto Baral, 31-10-2023 15:48
Hans-Otto Baral
Re : Helotiales
You are sure this is on a herb and not on moss? Are the living paraphyses without conspicuous guttulation? The apical ring looks almost like a Sclerotiniaceae, how is the excipulum? The micros remind me a bit of Sclerotinia trifoliorum, with heterogeneous spores in the asci.
Koszka Attila, 31-10-2023 17:14
Re : Helotiales
Many thanks! It's not clrear to me, which is the real host. The fruitbodies are always growing near moss, but not directly between the moss, nor on the living moss.

Living paraphyses hyaline, without guttulation, rarely with sparse deposit on their top.

The ectal excipulum with short, shligthly inflated, rounded cells.

Medullary excipulun reminds textura intricata, but mainly with paralel hyphae.

As you see, the shape and size of freshly ejected spores are extremely variable.
  • message #77264
  • message #77264
  • message #77264
  • message #77264
  • message #77264
Hans-Otto Baral, 31-10-2023 18:00
Hans-Otto Baral
Re : Helotiales
Yes, this is clearly S. trifoliorum. It must emerge from small sclerotia without contact to a host. In reality it must have developped in a Fabaceae.

You see very well the heterospory of the asci and the small nuclei in the free spores (they must be four per spore, maybe two in the small spores.
Koszka Attila, 31-10-2023 18:24
Re : Helotiales
Excellent, thanks!