Accès membres

Mot de passe perdu? S'inscrire

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

« < 1 2 3 4 5 > »
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.