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28-04-2026 20:07

Marthamycetales? - from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

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

04-05-2026 18:13

Black rod-like structures with branching curved conidiophores
Stephen Martin Mifsud Stephen Martin Mifsud

ID request for what seems to be a true aquatic fun

04-05-2026 16:39

Black pseudothecia on submerged foliar debris
Stephen Martin Mifsud Stephen Martin Mifsud

ID request: This specimen was collected in Malta o

04-05-2026 09:50

Una en semilas de Acacia
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,(España) re

03-05-2026 11:38

En dunas
Castillo Joseba Castillo Joseba

Me mandan el material seco, recolectado en dunasLo

02-05-2026 12:42

Hilfe :pour cette éventuelle Orbiliaceae
Alain BRISSARD

Bonjour à tousJeuidi 30 avril dernier on m'a remi

02-05-2026 13:06

Small perithecia on Oenanthe crocata
Pauline. Penna

Bonjour  Please can someone help me with this id

01-05-2026 22:45

Cheilymenia coprophile
Thierry Blondelle Thierry Blondelle

Bonjour à tous, Une récolte sur bouse séchée d

14-04-2026 05:32

Pyrenomycete with yellow subiculum on Aralia
Ethan Crenson

Hi all, A few weeks back a friend pointed out som

28-04-2026 20:33

Parasite on Trochila ilicina?
Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

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Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hardware Tony, 12-04-2026 17:56
Hardware TonyFound on dead stems in February earlier this year and following regrowth confirmed this substrate. Seeking help identify at least for the genus as at a loss where this belongs, spores shape probably important but apprecaite any help.

Substrate: Nepteta cataria (Catmint) dead lower stem.
Ascocarps: Superficial, gregarious, subglobose, 0.1mm rounded black. No obvious ostiole. Surface roughened.
Asci: Clavate, fairly thin-walled, up to 89 – 93 x 9.7 – 10.3 µm, IKI -, 8-spored, uniseriate spores, croziers not obvious and appears negative.
Ascospores: Ellipsoid-fusoid, 1 – 3 septate, 1-2 inside ascus, 3 – matured, turning into one side flattened slightly, with 2-5 fairly large random oil drops, thin walled, no constriction, hyaline 17.0 – 21.5 x 6.0 – 8.0 µm
Excipulum: Textura angularis, hymenium bluing reaction in water.

With many thanks Tony Hardware
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Hardware Tony, 14-04-2026 00:10
Hardware Tony
Re : Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Due to the bluing perithecia in transmitted light it all seems to fit Gibberella pulicaris. Thanks to those that took the time to consider.  Tony
Mathias Hass, 19-04-2026 00:26
Mathias Hass
Re : Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hi,

The current name of Gibberella pulicaris (s.str.) is Fusarium sambucinum. However determinetion of Gibberella/Fusarium species is not simple. There are multiple taxa with very similar morphology, see for example:


http://www.ascofrance.com/uploads/forum_file/GIBBERELA-Samuels-G.-J.-H.-I.-Nirenberg-and-K.-A.-Seifert-0001.pdf


Maybe helpful, maybe not.


cheers Mathias

Hardware Tony, 19-04-2026 20:48
Hardware Tony
Re : Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Thank you Mathias, any further description and keys is always helpful. I became aware of the change in name when entering the record and also noted that G. cyanogena (maybe British issue only) has now been lumped together with G. pulicaris, now Fusarium sambucinum as you stated. I closely checked the keys and am still reasonably happy with F. sambucinum as most other species generally have much smaller width spores, very much larger spores generally or have specific substrates. I didn't observe conidia nor tried to culture but something I might consider in future if species are accepted through culture results. Thank you once again for your interest.  Tony.