25-03-2026 15:06
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me confirm
25-03-2026 10:35
Hulda Caroline HolteHello,I collected this species growing on a dead b
25-03-2026 13:54
Enrique Rubio
Does anyone know where I could download Paoletti's
25-03-2026 15:46
Michel Hairaud
Bonjour, Je sollicite de l'aide pour cette récol
24-03-2026 19:59
William Slosse
Hello everyone,On 23/03/26, I found the following
21-03-2026 15:13
Lepista ZacariasHello everyone, Does any one know of any literatu
24-03-2026 21:37
Elisabeth StöckliBonsoir,Sur bois (tronc) très pourri de conifère
24-03-2026 21:07
Ethan CrensonHello all, A friend collected this asco in a wood
23-03-2026 20:16
Miguel Ángel Ribes
Good eveningI'm unable to identify this Coprotus o
24-03-2026 15:44
Åge OterhalsI hope someone can confirm the name of this collec
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