Nectrioid fungus on Cornus - Forum ASCOFrance

28-04-2026 22:51

Hyaloscypha sur grosse branche morte de hêtre

Bernard CLESSE

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

28-04-2026 21:53

Entyloma?

William Slosse

Good evening everyone, Recently, in a wet forest,

28-04-2026 21:50

Hongo briófilo sobre Telaranea en Patagonia Chilena

Pablo Sandoval

Hola a todos,Espero se encuentren bien. Hace mucho

27-04-2026 18:05

bright green minute anamorph on Citrus aurantius-twig from Portugal

Lothar Krieglsteiner

... still attached at standing tree. The green con

28-04-2026 20:33

Parasite on Trochila ilicina?

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

28-04-2026 20:07

Martjhamycetales? - from Portugal

Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

27-04-2026 20:52

Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Micropodia pteridina?

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

another anamorph on monocotyleous remains from Portugal

Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 17:16

anamorph on monocotyleous leaves from Portugal

Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

« < 1 2 3 4 5 > »

Nectrioid fungus on Cornus

Eduard Osieck, 18-12-2019 19:35

This nectrioid fungus was found on a dead Viburnum branch still attached to a fallen shrub. The dark yellow perithecia (KOH+, 0,5 mm only 0,25-0,3 mm visible) were largely embedded in the substratum. The 7-septate brownish spores were rather large: 68-72 x 11-13 um. Intact asci not seen.

All suggestions are welcome!

Eduard

Note: Substrate corrected 24/02/2022

Martin Bemmann, 18-12-2019 19:59

Re : Nectrioid fungus on Cornus

Hi Eduard,

this is Pseudotrichia viburnicula. Would be nice to have your collection details (date an location). This fungus is plurivorous, I think Cornus is a new host.

see: http://www.ascofrance.com/search_forum/23643

best regards

Martin

PS: if it is from the NL, there ia a collection from Steenbergen on Crataegus by Aafke Buijs in 2015.

Eduard Osieck, 18-12-2019 21:14

Re : Nectrioid fungus on Cornus

Hi Martin,

Thank you very much for the prompt identification as Trichonectria viburnicola! Clearly, I was misled by the yellow (top of the) perithecium and the positive KOH-reaction.

Little information about this species in the literature but the more on this site including your document of the Heidelberg collection and your message in 2013. Yes my collection was done in the Netherlands, so this is the second collection after the one in Steenbergen on Crataegus.

Cheers, Eduard

Accès membres

Forum AscoFrance