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19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

18-03-2026 17:22

Katarina Pastircakova

Hi there,I'm looking for the following literature:

19-03-2026 10:56

Thomas Læssøe

https://svampe.databasen.org/observations/10505643

27-02-2026 11:21

Yannick Mourgues Yannick Mourgues

Hi to all. Here is a specie that can may be relat

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Hymenoscyphus with sheaths
Khomenko Igor, 10-01-2021 17:40
Khomenko IgorHi,
I have this Hymenoscyphus that I want to call H. macroguttatus, but spores with sheaths.

https://inaturalist.ca/observations/54700515

On a small herb twig on the ground in a wet area.
Ascospores 19-21x3.7-4.5um.
Asci IKI+b, croziers(+), 69-77x7.6-8.2um
Paraphyses cylindrical 2-2.2um width, septated with a fork at the base with large VBs in the top segments.
The medullary excipulum has ?intricata textura, very gelatinous and with plenty of crystals.

Best regards,Igor

Hans-Otto Baral, 10-01-2021 18:16
Hans-Otto Baral
Re : Hymenoscyphus with sheaths
Hi Igor

such sheaths are very common in Helotiales.

Loks like an Ombrophila indeed. In my O. rivulorum folder I have comparable finds, some almost attaining spore length of yours.

Zotto
Khomenko Igor, 10-01-2021 18:24
Khomenko Igor
Re : Hymenoscyphus with sheaths
Thank you very much Zotto, it explains a lot.