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22-10-2024 10:54

B Shelbourne B Shelbourne

• Macro and habitat suggest Lachnum.• Looking

21-10-2024 08:54

Joaquin Martin

Hi, I found this ascomycete on acorn, the habitat

13-10-2024 20:23

Margot en Geert Vullings

An older found of a cup fungus in a herb-rich verg

21-10-2024 15:07

Margot en Geert Vullings

This cup fungus found on 17 Oct 2024 in the roadsi

21-10-2024 13:30

Joeri Belis

I found this peziza-like at bottom of a bolete, c

21-10-2024 11:51

Margot en Geert Vullings

This cup fungus found in the verge of a forest pat

18-10-2024 18:12

Enrique Rubio Enrique Rubio

Hi to somebodyI have seen that there are some dive

13-10-2024 09:31

Maria Plekkenpol

Hello, I hope someone can help :). On dung of (wil

19-10-2024 16:44

B Shelbourne B Shelbourne

• Macro and habitat suggest Hymenoscyphus (s.s.)

17-10-2024 11:14

Michel Hairaud Michel Hairaud

Bonjour, Voici un Ciboria actuellement présent s

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Psilachnum or some Hyaloscyphaceae on hygric Sorbus wood
Filip Fuljer, 28-07-2022 11:34
Filip FuljerHello guys,

I recently collected some strange possibly Psilachnum species on decomposing fallen hygric branch of Sorbus aucuparia in (sub-)alpine region (High Tatras - Slovakia, 1350 m asl).
According to Raitviir's key, I assume, that it could be some Psilachnum species (on woody substrate). Please can someone help me with the precise identification ? Maybe Zotto will know ...
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Spores - narrowly ellipsoid to elongated ellipsoid, often with 2 bigger oil drops and many smaller ones, 9,1-10,8 x 3-3,8 µm
Asci - 8 spored, croziers present (Haken +), IKI+ bb
Paraphyses - filiform, with numerous oil content (oil drops)
Hairs - lanceolate, +- blunt, smooth
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Locality: https://en.mapy.cz/letecka?x=20.1573430&y=49.2161920&z=17&q=49.216150%2C%2020.157343&source=coor&id=20.157343%2C49.21615&ds=2

A lot thanks for any suggestions,
Filip
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Hans-Otto Baral, 28-07-2022 12:05
Hans-Otto Baral
Re : Psilachnum or some Hyaloscyphaceae on hygric Sorbus wood
Hi Filip

the hairs clearly refer this species to Hyaloscypha. I only wonder about the paraphysis content which is quite impossible here. Surely this is no oil, you can easily check this by adding 1-5% KOH (LBs resist in KOH).

If you have CRB (aqueous Crresyl Blue or Toluidine Blue) you can try to stain them, which needs some patience. Hyaloscypha vitreola has paraphyses with single guttules but these are SCBs which do not stain in CRB, whereas VBs which I presume here do stain turquoise.

Zotto