25-03-2026 22:23
Marc Detollenaere
Dear Forum,On a debarked stem of Tilia, we found s
25-03-2026 20:53
François BartholomeeusenDear forum members,On 23 March 2026, I found sever
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
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
Geoglossum confirmation please
Chris Yeates,
01-01-2014 19:04
Bonsoir tous - and Happy New Year!I collected this on a mossy lawn (slightly acidic grassland) on Christmas Day (it has stayed mostly frost-free here - so far!). It seems to key out fine to Geoglossum fallax, especially with regard to characters of the paraphyses tips, which have relatively few septa and are embedded in a brown matrix, and of the spores which are rather slender and tapering at their bases.
But this collection of G. fallax on ASCOFrance http://www.ascofrance.com/search_recolte/1567 looks rather different.
Am I missing something?
Cordialement
Chris
Martin Bemmann,
01-01-2014 19:22
Re : Geoglossum confirmation please
Hi Chris,
stipe is hairy? If so check Trichoglossum (hirsutum). Spore length would fit better. Can you count the septa?
Regards
Martin
stipe is hairy? If so check Trichoglossum (hirsutum). Spore length would fit better. Can you count the septa?
Regards
Martin
Chris Yeates,
01-01-2014 19:33
Re : Geoglossum confirmation please
Hi Martin
the stem has tufts of hyphae, but no setae either on stem or in hymenium;
spores with 7 to 12 septa
best wishes
Chris
the stem has tufts of hyphae, but no setae either on stem or in hymenium;
spores with 7 to 12 septa
best wishes
Chris
Martin Bemmann,
01-01-2014 20:04
Re : Geoglossum confirmation please
Hi Chris,
sorry I ignored the paraphyses. With checking more keys (Maas-Geesteranus, Priou, Olsen etc.) I come to G. fallax too. Though spore size varies.
Regards,
Martin
sorry I ignored the paraphyses. With checking more keys (Maas-Geesteranus, Priou, Olsen etc.) I come to G. fallax too. Though spore size varies.
Regards,
Martin
Michel Hairaud,
01-01-2014 20:58
Re : Geoglossum confirmation please
Hi Chris, Martin and all,
I would also go for G. fallax. Paraphyses tips are often more curved as inthe pic I attach .
Another regular character for fallax is that spores (even freed) are often not mature and then hyalin
Amitiés
Michel
I would also go for G. fallax. Paraphyses tips are often more curved as inthe pic I attach .
Another regular character for fallax is that spores (even freed) are often not mature and then hyalin
Amitiés
Michel
Hans-Otto Baral,
01-01-2014 20:59
Re : Geoglossum confirmation please
Hi
G. fallax is a species that shows the rather rare feature that the spores are ejected when still hyaline. Look at my drawing Geoglossum fallax, HB 6546.JPG with turgescent ascus. In the centre of your collage I see a living ascus with hyaline spores. If you saw these often enough and never brown when turgescent then I have no doubt.
Spores on my drawing are 70-106 x 5-6.5 µm, with 8-12 septa, so fit perfectly.
For the specimen from 2006 (Ascofrance) I am not sure.
Zotto
G. fallax is a species that shows the rather rare feature that the spores are ejected when still hyaline. Look at my drawing Geoglossum fallax, HB 6546.JPG with turgescent ascus. In the centre of your collage I see a living ascus with hyaline spores. If you saw these often enough and never brown when turgescent then I have no doubt.
Spores on my drawing are 70-106 x 5-6.5 µm, with 8-12 septa, so fit perfectly.
For the specimen from 2006 (Ascofrance) I am not sure.
Zotto
Chris Yeates,
01-01-2014 21:40
Re : Geoglossum confirmation please
Martin, Michel and Zotto
thank you for these helpful comments
amitiés
Chris
thank you for these helpful comments
amitiés
Chris