Accès membres

Mot de passe perdu? S'inscrire

14-05-2024 09:19

Hans-Otto Baral Hans-Otto Baral

Hi, I want to announce for next Sunday 17.00 middl

16-05-2024 11:19

Sylvie Le Goff

Bonjour, j'ai récolté sur une branchette de feui

16-05-2024 11:49

Castillo Joseba Castillo Joseba

De ayer en rama de abetoNo se por donde mirarA ver

14-05-2024 09:50

Yannick Mourgues Yannick Mourgues

Hi. Found on decorticated wod of Populus cf. alba

16-05-2024 09:02

Vasileios Kaounas Vasileios Kaounas

Found 15-05-24 in forest with Abies cephalonica, i

29-01-2022 21:44

Jan Eckstein

Good evening, apothecia small, yellowish, 150-300

15-05-2024 17:26

Vasileios Kaounas Vasileios Kaounas

First time I find this season and in this habitat,

16-05-2024 07:34

Vasileios Kaounas Vasileios Kaounas

Found in forest with Abies cephalonica. Diameter 0

15-05-2024 10:54

Viktorie Halasu Viktorie Halasu

Hello, would anyone have this paper please? I did

14-05-2024 19:48

B Shelbourne B Shelbourne

• Hymenoscyphus: Habitat, macro, spores, paraphy

« < 1 2 3 4 5 > »
Leptosphaeria on Lupinus
Marja Pennanen, 03-06-2012 13:29
Hello folks,

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
  • message #18809
  • message #18809
Björn Wergen, 03-06-2012 14:08
Björn Wergen
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
Alain GARDIENNET, 03-06-2012 14:11
Alain GARDIENNET
Re : Leptosphaeria on Lupinus
Hi Marja,
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
Björn Wergen, 03-06-2012 14:29
Björn Wergen
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
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
Mlcoch Patrik, 06-09-2018 18:03
Mlcoch Patrik
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