
19-09-2025 23:55
Jorge HernanzEstoy buscando y no encuentro el siguiente artÃcu

17-09-2025 19:43
Philippe PELLICIERSur branche morte de Mélèze. Les ascospores sphÃ

18-09-2025 16:14

Hello,I am looking for a copy of following paper:H

17-09-2025 10:50
Heather MerryleesHi there!I am hoping for any advice on the identif

11-09-2025 16:57
Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53
Philippe PELLICIERPézizes de 1-4 mm, brun grisâtres, sur les capsu
Gelatinous hyaline discs (Exidia ?)
Stephen Martin,
27-11-2017 17:09

The bodies were jelly-like and very difficult to slice, hyaline or slightly pulverous above, astipitate, cushion-like bodies sitting on the surface of a decaying twig, sometimes coalescing to form colonies. Some individuals had a pale ochraceous granule at the centre which under the microscope seems to be abiotic and disintegrate into amorphous particlesÂ
When finally I sliced a section, I could see a meshwork of numerous 'hyphae' without any special reproductive organs. No spores could be detected.
Is it an Exidia?
Sliced section shows a central amorphous body suspended in a loose gelatinous tissue composed of loose hyphae in a meshwork network (very thin - 1um ) and an outer layer made up of a different denser tissue, but without any special organs (eg asci)Â
Lothar Krieglsteiner,
27-11-2017 17:13

Re : Gelatinous hyaline discs (Exidia ?)
Hello Stephen,
although the micros are very small, I am quite sure that your fungus is not an ascomycete but a Heterobasidiomycete.
Best regards, Lothar
Chris Yeates,
27-11-2017 17:30
Stephen Martin,
27-11-2017 18:17

Re : Gelatinous hyaline discs (Exidia ?)
Dear friends,
I agree perfectly - I just examined better the slide and although I could not see the spectacular basidia of this genus, there are 'basidioles' which are matching with those of Exidia sp. The central calcium oxalate deposit is typical of Exidia nucleata:
http://cemachampi.blogs.sudouest.fr/archive/2014/02/20/etude-exidia-nucleata-une-exidie-a-concretions-d-oxalate-de-1017337.html
I washed the specimen in KOH and maybe I washed away the spores from the surface. I'll prepare a slide from a raw specimen. COOL!