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02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

éric ROMERO éric ROMERO

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

31-01-2026 09:17

Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

30-01-2026 21:20

Arnold Büschlen

Bryocentria brongniartii und B. metzgeriae mit ihr

21-01-2026 16:32

Gernot Friebes

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

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Albotricha ?
Nicolas VAN VOOREN, 20-06-2019 08:31
Nicolas VAN VOORENHello.
Here is a tiny fungus growing on rotten bark (hardwood).

Asci 42-47 × 6-6.5 µm, pars sporifera 20-21 µm, no crozier, IKI+ (bb)
Paraphyses filiform, without VB
Spores 7-8.5 × 2-2.2 µm, with few droplets at each pole
Ectal excipulum of textura globulosa (at the base) to t. prismatica
Hairs septate, reaching 90 µm in length

Any idea?
  • message #58183
  • message #58183
Jacky Launoy, 20-06-2019 09:39
Re : Albotricha ?
Bonjour Nicolas,

 as-tu essayé dans le groupe des Trichophaea Boud. Je pense plustôt dans le genre Paratrichophaea vu la texture de l'excipulum.
Hans-Otto Baral, 20-06-2019 10:34
Hans-Otto Baral
Re : Albotricha ?
Hi Nicolas

I think you should compare Psilocistella quercina.

Ascomycete.org, 6 (5) : 143-146.

Zotto
Michel Hairaud, 20-06-2019 16:11
Michel Hairaud
Re : Albotricha ?

Bonjour,


Zotto , is it possible to find such acuminate hairs in P. quercina ?


Hairs would rather  match Dasyscyphella acutipilosa, but spores too short .


Amitiés


Michel

Hans-Otto Baral, 20-06-2019 20:49
Hans-Otto Baral
Re : Albotricha ?
You are right Michel, but Dasyscyphella does not have such broad hairs. Arachnopeziza variepilosa perhaps, but I must say I can only guess when not seeing the other elements.

What is the hair width, Nicolas?
Nicolas VAN VOOREN, 24-06-2019 19:37
Nicolas VAN VOOREN
Re : Albotricha ?
Sorry for the delay. I rehydrated a specimen in 5% KOH.
Hairs measure 4-5 µm wide at the base. I attach a new picture of hairs and ascospores.

  • message #58241
  • message #58241
Hans-Otto Baral, 24-06-2019 19:40
Hans-Otto Baral
Re : Albotricha ?
They remind me also of Colipila but you say the paraphyses are filiform while Colipila has such lke the hairs.
Nicolas VAN VOOREN, 24-06-2019 20:06
Nicolas VAN VOOREN
Re : Albotricha ?
Yes, I confirm: paraphyses are filiform, and apothecia sessile.