03-02-2026 20:44
Zetti MarioWhen I first saw this white mould on an Agaricus s
18-08-2025 15:07
Lothar Krieglsteiner
.. 20.7.25, in subarctic habital. The liverwort i
02-02-2026 21:46
Margot en Geert VullingsOn a barkless poplar branch, we found hairy discs
02-02-2026 14:55
Andgelo Mombert
Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome
02-02-2026 14:33
Andgelo Mombert
Bonjour,Sur le thalle de Peltigera praetextata, ne
31-01-2026 10:22
Michel Hairaud
Bonjour, Cette hypocreale parasite en nombre les
02-02-2026 09:29
Bernard CLESSE
Bonjour à toutes et tous,Pour cette récolte de 2
01-02-2026 19:29
Nicolas Suberbielle
Bonjour, Marie-Rose D'Angelo (Société Mycologiq
31-01-2026 09:17
Marc Detollenaere
Dear Forum,On decorticated wood of Castanea,I foun
out of topic - unclear layer on the ground in Portugal
Lothar Krieglsteiner,
12-02-2023 11:06
... on naked red soil under Ceratonia, Olea and other mediterranean bushes, near Tor (Algarve). It does not seem to be an alga - the contents in the cells are too small to be plastids. The filaments are without septa and branching dichotomously. One of my thoughs is a possible Glomeromycota but am quite helpless. Who can help?Yours, Lothar
Alain GARDIENNET,
12-02-2023 12:05
Re : out of topic - unclear layer on the ground in Portugal
Perhaps a Trentepohlia (alga) species ?
Lothar Krieglsteiner,
12-02-2023 12:38
Re : out of topic - unclear layer on the ground in Portugal
Hello Alain,
thanks for your proposal. But - I do not think so, at least not T. aurea. The filaments look different and have septa and larger inclusions.
Yours, Lothar
thanks for your proposal. But - I do not think so, at least not T. aurea. The filaments look different and have septa and larger inclusions.
Yours, Lothar
Alain GARDIENNET,
12-02-2023 15:07
Re : out of topic - unclear layer on the ground in Portugal
yes, you'right. It was just one idea, an other way than fungi
Zdenek Palice,
12-02-2023 17:26
Re : out of topic - unclear layer on the ground in Portugal
Hallo Lothar
Could this be perhaps a xanthophycaeous alga, like a Vaucheria?
at least I have a feeling that it may grow also on naked soil and it is one of few "macroscopic algae" with discernable filaments
here is one link:
https://fmp.conncoll.edu/Silicasecchidisk/LucidKeys3.5/Keys_v3.5/Carolina35_Key/Media/Html/Vaucheria_Main.html
the sterile thalli do not necessarily have septa
all the best
Zdenek
Could this be perhaps a xanthophycaeous alga, like a Vaucheria?
at least I have a feeling that it may grow also on naked soil and it is one of few "macroscopic algae" with discernable filaments
here is one link:
https://fmp.conncoll.edu/Silicasecchidisk/LucidKeys3.5/Keys_v3.5/Carolina35_Key/Media/Html/Vaucheria_Main.html
the sterile thalli do not necessarily have septa
all the best
Zdenek
Lothar Krieglsteiner,
12-02-2023 18:45
Re : out of topic - unclear layer on the ground in Portugal
Hello Zdenek,
thank you very much for your proposal and the link!
Best wishes, Lothar
thank you very much for your proposal and the link!
Best wishes, Lothar












z-Trentepohlia-aurea-Lechtal-3-4.07-0001.JPG