14-07-2025 11:20
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
16-01-2023 21:31
Riet van Oosten
Hello, Nearby the find of Calycina claroflava on
14-07-2025 17:55
Yanick BOULANGERBonjourAutre dossier laissé en suspendJe viens de
14-07-2025 11:17
Yanick BOULANGERBonjourJ'ai un dossier Jackrogersella qui est rest
14-07-2025 15:52
Gernot FriebesHi,I wanted to share this collection on Rubus idae
14-07-2025 13:37
Gernot FriebesHi,do you think this collection could be R. ulmari
14-07-2025 11:19
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
12-07-2025 16:45
Thierry Blondelle
Bonjour à tous,J'avais d'abord pensé à des stro
05-07-2025 12:38
Åge OterhalsI found this pyrenomycetous fungi in pine forest o
Leptosphaeria on Cirsium
Gernot Friebes,
19-07-2010 15:39
Leptosphaeria is a really complicated genus so I am not really sure about the two collections I collected two days ago. I would be happy if you could help me. :)
The first one here grew on a dry stem of Cirsium. Very conspicuous are the collapsing ascomata when they are older. The spores are (33)38-42 x 4.5-5 µm and 6-celled with the third cell swollen. The peridium consists of big and dark cells and the ostiolum is filled with hyaline to slightly brownish cells and not with periphyses.
With the paper by Müller (1950) I come to L. ogilviensis and I think that, according to some other descriptions, this species could be close to mine.
Best wishes,
Gernot
ascomata
Gernot Friebes,
19-07-2010 15:42
Re:Leptosphaeria on Cirsium
spores (scale=10 µm):
Gernot Friebes,
19-07-2010 15:43
Re:Leptosphaeria on Cirsium
asci (scale=10 µm):
Gernot Friebes,
19-07-2010 15:43
Re:Leptosphaeria on Cirsium
sections (botton left corner: ostiole/scale=10 µm):
Alain GARDIENNET,
19-07-2010 15:45
Re:Leptosphaeria on Cirsium
Hi Gernot,
Have you photo of ascospores to see color and the sequence of septation ?
But I think L. ogilviensis is a good idea !
My answer came too quickly, photos were absent, and with the photos, I agree with ogilviensis.
Alain
PS : but are you sure of Cirsium. Could it be Valeriana or other else ?
Have you photo of ascospores to see color and the sequence of septation ?
But I think L. ogilviensis is a good idea !
My answer came too quickly, photos were absent, and with the photos, I agree with ogilviensis.
Alain
PS : but are you sure of Cirsium. Could it be Valeriana or other else ?
Gernot Friebes,
19-07-2010 16:07
Re:Leptosphaeria on Cirsium
Hi Alain,
thanks for these quick answers!
Here I am not 100% sure about the substrate because there were so many other plants (but mainly Cirisum) around, maybe I am wrong with Cirsium. At least it had little spines which hurt me while trying to take photos of it...
I will compare my other find with fuckelii, thank you again!
Best wishes,
Gernot
thanks for these quick answers!
Here I am not 100% sure about the substrate because there were so many other plants (but mainly Cirisum) around, maybe I am wrong with Cirsium. At least it had little spines which hurt me while trying to take photos of it...
I will compare my other find with fuckelii, thank you again!
Best wishes,
Gernot