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28-04-2024 18:05

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,J'ai trouvé ce matin ce

28-04-2024 13:30

Juuso Äikäs

On Friday I found these pale, hairy little discos

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-04-2024 10:07

Mathias Hass Mathias Hass

Hello, Does anyone know what this is? Found on J

24-04-2024 21:54

éric ROMERO éric ROMERO

Bonjour, J'ai trouvé ce Lasiobolus sur laissées

23-04-2024 15:18

Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 13:17

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 21:49

Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

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Leptosphaeria on Euphorbia
Marcus Yeo, 23-07-2014 19:31
This bitunicate ascomycete was growing on dead stems of Euphorbia amygdaloides.

Pseudothecia are immersed. Asci are cylindrical, short-stalked, ca 90-100 x 9-11 µm. Spores are brown, fusiform, 3-septate, 19-24 x 6-7 µm.


The spores resemble Leptosphaeria doliolum, but the pseudothecia are completely immersed in the substrate rather than becoming superficial. It doesn't seem to match the description of any other Leptosphaeria with 3-septate spores in the literature I have available.


Index Fungorum lists L. euphorbiae, recorded from Euphorbia and with brown 3-septate spores, but I don't have a full description of this species.


I'd welcome any suggestions.


Many thanks


Marcus

  • message #30429
  • message #30429
  • message #30429
  • message #30429
Chris Yeates, 23-07-2014 21:52
Chris Yeates
Re : Leptosphaeria on Euphorbia
Hi Marcus
you can get to a description from Index Fungorum:
http://www.librifungorum.org/Image.asp?Nav=yes&FirstPage=1162&LastPage=2122&NextPage=1186 (bottom line on to next page).

I have had problems with L. doliolum-like collections - e.g.http://www.ascofrance.com/search_forum/27681
best wishes
Chris
Marcus Yeo, 24-07-2014 22:21
Re : Leptosphaeria on Euphorbia

Thanks Chris. I had seen the short Latin description accessible from Index Fungorum. If only there was a long, detailed description somewhere, preferably with lots of illustrations!


Marcus