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26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

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

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Bisporic discomycete
Stefan Jakobsson, 27-05-2020 22:03
In a Finnish alder swamp I found two small apothecia growing on what i thinks is remnants of leafs of Alnus glutinosa. The colour is towards brick red or light orange brown and the diameter is 1.2 mm. The flanks seem covered with adpressed hairs on top of tissue of textura angularis.

To my surprise I found only bisporic asci under the microscope. The spores are cylindrical and the size is (13.5) 14.4 - 15.96 (16.0) × (5.4) 5.6 - 6.0 (6.6) µm. The asci are on average 61.8 × 7.1 µm and the paraphyses are once bifurcately branched, cylindrical 1.5 - 2 µm wide.


This one should not be difficult to identify but so far i have failed. Any help is welcome. Thank you in advance,


Stefan

  • message #63438
  • message #63438
Hans-Otto Baral, 27-05-2020 22:20
Hans-Otto Baral
Re : Bisporic discomycete
Yeah, this is "Hymenoscyphus" kermesinus, and we had it already in this forum, I remember I regretted there that still no sequence exists of it.


Surely it is sclerotiniaceous, but to determine a genus is difficult.
Stefan Jakobsson, 28-05-2020 10:47
Re : Bisporic discomycete
Thank you!

It looks like a Hymenoscyphus but with such hairs I did not combine it with that genus.

Stefan
Hans-Otto Baral, 28-05-2020 11:24
Hans-Otto Baral
Re : Bisporic discomycete
These hairs are inconspicuous and may exist also in hymenoscyphus. But the shape of the ascus apex and apical ring clearly point to a Sclerotiniaceae. I chose the folder Moellerodiscus for the time being.