14-05-2026 05:36
Ethan CrensonHi all, I haven't paid much attention to Lachnu
16-03-2011 14:31
roman vargas albertoHi. I would like some opinion about this Peziza
11-05-2026 12:32
Bernard CLESSE
Pourriez-vous m'aider à identifier cette héloti
13-05-2026 15:26
François Freléchoux
Bonjour,Voici une récolte faite il y a quelques j
12-05-2026 15:41
Nicolas VAN VOOREN
Dear Ascolovers, especially interested in Pezizale
13-05-2026 12:05
Thierry Blondelle
Bonjour à tous,J'aimerais avoir confirmation de c
10-05-2026 23:17
Andreas Gminder
Hello,today we found in a moist steep decidous for
28-04-2026 20:07
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
11-05-2026 20:22
Lothar Krieglsteiner
on attached twig of standing Ficus caricaquite uns
Unknown spore from Baltic amber
Hans Halbwachs,
16-05-2020 12:30
Its size is 6x15µm. I assume an ascospore, though neither in the Nordic Macromycetes (Ascomycetes) nor in the Hanlin (Illustrated Genera of Ascomycetes) I could find anything.
Can anbody help? Thank you, Hans
Nicolas Schwab,
16-05-2020 16:17
Re : Unknown spore from Baltic amber
It looks like the spores of the genus Gautieria, which are basidiomycetes.
Hans Halbwachs,
16-05-2020 16:35
Re : Unknown spore from Baltic amber
You are a genius, Nicolas. I have never come across this genus before.
Many thanks, Hans
PS: Please givr me your location/credentials for the acknowledgements in my article
Many thanks, Hans
PS: Please givr me your location/credentials for the acknowledgements in my article
Nicolas Schwab,
17-05-2020 00:11
Re : Unknown spore from Baltic amber
Thank you, but that's only because I came across this genus a few times.
I think you can see all my info on my profile. E-mail me if you need anything.
Hans Halbwachs,
17-05-2020 09:11
Re : Unknown spore from Baltic amber
Thank you Nicolas, please give me the location in Switzerland, Hans
Nicolas Schwab,
19-05-2020 11:08
Re : Unknown spore from Baltic amber
I am from Renan, canton of Bern.
Ludovic Le Renard,
29-05-2020 02:32
Re : Unknown spore from Baltic amber
Dear Hans,
You may want to consider the fossil genus Striadisporites. See Kalgutkar & Jansonius (2000).
The striking features of your fossil spore comprise the ridges, the pinched area at the base, and what appears like a pore facing the pinched area. The pinched base is reminiscent of hilar appendix but I am not sure that is how Nicolas interpreted this spore.
Gautieria species don't have much hilar appendix as depicted by Zeller and Dodge (1918) and a blunt bases instead, facing a rather round outline at the opposit side, and devoid of germ pore.
I don't know if more recently described species of this genus have pinched basidiospore apex but I think other genera in Boletales may also have ridges.
The overall spore shape is also reminiscent of Ascomycota in Sordariales, but I don't know anything ridged in this group.
Ludo