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
Leptosphaeria on Lupinus
Marja Pennanen,
03-06-2012 13:29
I try to learn at least one new black spot on a month. It seems, that I've been a bit lazy,
I collected some on Lupinus last month and looked them today.
They are about 0,2-0,3 mm wide.
Spores are a bit yellowish, about 45-58x4-5 and have 6 septas.
Asci are about 120-130x10-12.
The substrate and too big spores did not fit for L. maculans. Any fresh ideas?
Marja
Björn Wergen,
03-06-2012 14:08
Re : Leptosphaeria on Lupinus
Hi
L. maculans has 5 septated spores with no distinct enlarged cells. Your finding has 6 septations and the 3rd cell enlarged.
It is not L. maculans, I have read something about a species growing on Lupinus, I will look for it and write again later.
regards,
björn
L. maculans has 5 septated spores with no distinct enlarged cells. Your finding has 6 septations and the 3rd cell enlarged.
It is not L. maculans, I have read something about a species growing on Lupinus, I will look for it and write again later.
regards,
björn
Alain GARDIENNET,
03-06-2012 14:11
Re : Leptosphaeria on Lupinus
Hi Marja,
Have you observed mucilaginous cushion-shaped terminal appendages ?
Alain
Have you observed mucilaginous cushion-shaped terminal appendages ?
Alain
Marja Pennanen,
03-06-2012 14:23
Re : Leptosphaeria on Lupinus
Hi Björn, Alain,
L. maculans was just the closes species I could find to this. I asked because I could not end up to a proper determination.
I can study one more to look for appendages. I did not notice such at the first time.
Marja
L. maculans was just the closes species I could find to this. I asked because I could not end up to a proper determination.
I can study one more to look for appendages. I did not notice such at the first time.
Marja
Björn Wergen,
03-06-2012 14:29
Re : Leptosphaeria on Lupinus
Your finding looks like Phaeosphaeria sowerbyi, but it does not fit macroscopically and it seems as if this species has vacuoles in each of the cells. I also do not think that this is a Phaeosphaeria. You should be right with Leptosphaeria.
regards,
björn
regards,
björn
Marja Pennanen,
03-06-2012 16:04
Re : Leptosphaeria on Lupinus
Hi again,
the spores seems to have nothing extra besides septas and those vacuoles in each of the cells as Björn mentioned.
Marja
the spores seems to have nothing extra besides septas and those vacuoles in each of the cells as Björn mentioned.
Marja
Mlcoch Patrik,
06-09-2018 18:03
Re : Leptosphaeria on Lupinus
Hi Marja,
this is probably Leptosphaeria wehmeyeri. I study this genus, so i would have interested in this your collection. Can you send me it, please? If yes, writte me on my e-mail: Pmlcoch99@gmail.com. Thank you, Patrik
this is probably Leptosphaeria wehmeyeri. I study this genus, so i would have interested in this your collection. Can you send me it, please? If yes, writte me on my e-mail: Pmlcoch99@gmail.com. Thank you, Patrik