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20-06-2019 08:31

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.Here is a tiny fungus growing on rotten bark

24-06-2019 17:36

Castillo Joseba Castillo Joseba

Dudo entre H. solitaria o H. quelettiRecolectada

24-06-2019 17:37

Castillo Joseba Castillo Joseba

Dudo entre H. solitaria o H. quelettiRecolectada

24-06-2019 17:36

Castillo Joseba Castillo Joseba

Dudo entre H. solitaria o H. quelettiRecolectada

23-06-2019 15:18

ida Bruggeman-Nannenga

fruitbody tiny, ca 150 um dia, dark, round, black

23-06-2019 15:18

ida Bruggeman-Nannenga

fruitbody tiny, ca 150 um dia, dark, round, black

20-06-2019 23:28

Patrice TANCHAUD

Bonsoir, récolte sur débris de plantes. Spores

21-06-2019 09:40

Blasco Rafael Blasco Rafael

Hola, tienen ustedes alguna idea para este hongo ?

20-06-2019 14:58

Juuso Äikäs

I found these in a small grove, growing on a falle

21-06-2019 15:03

Michel Delpont Michel Delpont

Bonjour à tous! Je recherche la description d'As

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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?
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  • 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.

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  • 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.