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
29-08-2025 05:16
Francois Guay
I think I may have found the teleomorph of Dendros
Strange Scutellinia
Malcolm Greaves,
23-09-2015 01:05
This Scutellinia was found on mud in a damp rut made by felling machinery. A first look at the round spores, with low warts some slightly pointed and others rounded or with flat tops looked a good fit for S heterosphaera. Looking at the spores in the ascus made me doubt this though. There were some with what looked much more like the "sharks fin" spines of S legalae. A spore drop confirmed this mixture of spore ornamentation.Has anyone else come across this phenomenon?
Malcolm Greaves,
23-09-2015 12:36
Re : Strange Scutellinia
A second spore drop produced the same two very distinctive types of spore.
Mal
Ps Does anyone have contact with Beñat?
Mal
Ps Does anyone have contact with Beñat?
Michel Delpont,
23-09-2015 20:24
Re : Strange Scutellinia
Good evening Malcolm.
I do not think I met these differences so as marked. Perhaps the spores are they not all mature enough?
No, I'm not new to Beñat.
Michel.
I do not think I met these differences so as marked. Perhaps the spores are they not all mature enough?
No, I'm not new to Beñat.
Michel.
Malcolm Greaves,
23-09-2015 21:42
Re : Strange Scutellinia
Michel,
When I saw the spores I thought exactly the same, that they had been expelled from the ascus prematurely but having now seen two spore drops ( and they were on to a cover slip placed over the apothecia) with exactly the same result I am sure they must be mature. Many but not all the groups ejected show the same totally different mixed spore grouping.
I am not sure it will help at all but I will post some photos of the multi-septate sometimes swollen hairs up to 800 long.
Mal
When I saw the spores I thought exactly the same, that they had been expelled from the ascus prematurely but having now seen two spore drops ( and they were on to a cover slip placed over the apothecia) with exactly the same result I am sure they must be mature. Many but not all the groups ejected show the same totally different mixed spore grouping.
I am not sure it will help at all but I will post some photos of the multi-septate sometimes swollen hairs up to 800 long.
Mal
Malcolm Greaves,
25-09-2015 18:01
Re : Strange Scutellinia
As it looked as though this was going to go in the unknown bin until someone can solve the puzzle I thought I would take a few more photos and as the two smaller apothecia were in better condition I used them. My first mistake was to assum that just because they were only centemeters away they were the same species. They were where I got the maximum length of the hairs from at 800µ but a photo of the spores shows instantly that they are from a Scutellina heterosphaera nom prov. Globose but with low small warts some rounded some pointed and signs of a network.
The hairs on the original specimen are no more than a maximum of 320µ with either no roots or a simple bifurcate root.
Thanks
Mal
The hairs on the original specimen are no more than a maximum of 320µ with either no roots or a simple bifurcate root.
Thanks
Mal
