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05-04-2026 22:46

blue mould from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

on wood of Ceratonia, Algarve, 3.4.2026.The color

15-05-2026 13:33

Cistella geelmuydenii cf
Sylvie Le Goff

Bonjour à tousJe serais très reconnaissante enve

16-03-2011 14:31

Peziza cf ampelina
roman vargas alberto

Hi. I would like some opinion about this Peziza

14-05-2026 05:36

Lachnum subvirgineum (?)
Ethan Crenson

Hi all,  I haven't paid much attention to Lachnu

10-05-2026 23:17

Scleromitrula (?) from decaying leaves of Fagus/Acer
Andreas Gminder Andreas Gminder

Hello,today we found in a moist steep decidous for

11-05-2026 12:32

Hélotiale à paraphyses à exsudat brun jaunâtre
Bernard CLESSE Bernard CLESSE

Pourriez-vous m'aider à identifier cette héloti

13-05-2026 15:26

Incrucipulum ?
François Freléchoux François Freléchoux

Bonjour,Voici une récolte faite il y a quelques j

12-05-2026 15:41

Pezizomycetes of Europe: help us to improve their knowledge
Nicolas VAN VOOREN Nicolas VAN VOOREN

Dear Ascolovers, especially interested in Pezizale

13-05-2026 12:05

Scutellinia crinita ?
Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'aimerais avoir confirmation de c

28-04-2026 20:07

Marthamycetales? - from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

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

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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.