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14-05-2026 05:36

Ethan Crenson

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

11-05-2026 12:32

Bernard CLESSE Bernard CLESSE

Pourriez-vous m'aider à identifier cette héloti

13-05-2026 15:26

François Freléchoux François Freléchoux

Bonjour,Voici une récolte faite il y a quelques j

12-05-2026 15:41

Nicolas VAN VOOREN Nicolas VAN VOOREN

Dear Ascolovers, especially interested in Pezizale

13-05-2026 12:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'aimerais avoir confirmation de c

10-05-2026 23:17

Andreas Gminder Andreas Gminder

Hello,today we found in a moist steep decidous for

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

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

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

11-05-2026 20:22

Lothar Krieglsteiner Lothar Krieglsteiner

on attached twig of standing Ficus caricaquite uns

11-05-2026 13:22

Sylvie Le Goff

BonjourPuis avoir votre avis sur cet ascome, je vo

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Orbilia on Pteridum
Enrique Rubio, 29-11-2021 19:04
Enrique RubioHi to everybody
Do you have some idea on this whitish Orbilia with very small ascospores growing on rachis of Pteridium aquilinimum on a wet place at the sea level?
Many thanks in advance
  • message #70856
  • message #70856
  • message #70856
Hans-Otto Baral, 29-11-2021 21:00
Hans-Otto Baral
Re : Orbilia on Pteridum
This is the very rare case of an Orbilia on a fern. Only O. auricolor was recorded there in the monograph.

Did you test the key? I suggest series Neodactylella, perhaps close to O. rectispora.

Could you please send me in higher resolution? That would make it easier.
Enrique Rubio, 29-11-2021 21:10
Enrique Rubio
Re : Orbilia on Pteridum
Yes, I had come close to O. rectispora, but the substrate is rather peculiar and I (and you) only know this fungus on monocots.
Hans-Otto Baral, 29-11-2021 21:48
Hans-Otto Baral
Re : Orbilia on Pteridum
I measured the spores as *5.2-6.3(-6.7) x 0.8-1.05 µm.

They are a bit short but I know no other species, except for O. atlantis, which has smaller SBs and the yellowish color (VBs).O. cardui has distinctly wider spores.
Enrique Rubio, 30-11-2021 11:01
Enrique Rubio
Re : Orbilia on Pteridum
Thanks a lot, Zotto.