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11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Gernot Friebes

Hi,I would like to share a collection of Scopinell

15-09-2020 17:27

Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte décortiquée de Berbe

10-03-2026 18:08

Marc Detollenaere Marc Detollenaere

Dear Forum,On stems of Arctium, I found some downy

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

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Tiny white Helotiales
Nicolas VAN VOOREN, 26-10-2020 09:58
Nicolas VAN VOORENHi.
Here is the tiny white discomycete (~0.1 mm Ø) growing on dead branch of Salix (still attached), with Orbilia vinosa.
Asci 72-76 x 10 µm, without crozier, IKI-
Paraphyses filiform, 1.5-2 µm Ø, very flexuous.
Ascospores of heterogeneous shape, 10-15 x 3.5-4 µm

I have no idea of the genus...
Nicolas
  • message #65577
  • message #65577
  • message #65577
Stip Helleman, 27-10-2020 12:26
Stip Helleman
Re : Tiny white Helotiales
Hi Nicolas
Are you sure no hairs? They can be very inconspicuous in Hyaloscypha in my experience.
Cheers
Stip
Nicolas VAN VOOREN, 27-10-2020 12:47
Nicolas VAN VOOREN
Re : Tiny white Helotiales
I can try a new mount to check that.
Adam Polhorský, 27-10-2020 15:41
Re : Tiny white Helotiales
Hello,

Hyaloscypha minuta seems like good option. The hairs are not well developed there.
Nicolas VAN VOOREN, 27-10-2020 17:39
Nicolas VAN VOOREN
Re : Tiny white Helotiales
Here are two pictures of marginal cells (taken from the outside of an apothecium). No hairs or no hairs of Hyaloscypha-type.
  • message #65595
Stip Helleman, 27-10-2020 19:13
Stip Helleman
Re : Tiny white Helotiales
How disappointing, I would have bet on it.
With this lack of characters I have no idea for a genus.
Cheers, Stip
Hans-Otto Baral, 28-10-2020 06:40
Hans-Otto Baral
Re : Tiny white Helotiales
I agree with H. minuta (= Parorbiliopsis minuta). That species has very minute hairs or not at all any.

But I estimate the diameter of the apos at max. 0.5 mm.

Zotto
Nicolas VAN VOOREN, 28-10-2020 10:47
Nicolas VAN VOOREN
Re : Tiny white Helotiales
OK thanks.