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31-08-2025 17:32

Michel Hairaud Michel Hairaud

Bonjour, Pas d'identité trouvée pour cette réc

31-08-2025 19:41

Enrique Rubio Enrique Rubio

Hi to someone.I need to download this issue of Sve

31-08-2025 14:34

Thomas Flammer

I have found a Rutstroemia on abt. 2000 m on Alnus

29-08-2025 19:04

Thomas Flammer

Spores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.

30-08-2025 18:29

Joaquin Martin

Hi,I found this undetermined ascomycete on broadle

28-08-2025 17:24

Thomas Flammer

I know, that this is not the real topic of this fo

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

24-08-2025 21:59

Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

27-08-2025 12:02

Pavol Palo

Hello dear friendsI would like to ask for sharing

25-08-2025 17:37

François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

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Phaeosphaeriaceae
Garcia Susana, 04-07-2013 14:05
Hi to all:
Small ascomata on herbaceous stems.

I do not identify
Have you some idea


Thank you. regards
Susana

  • message #24259
  • message #24259
  • message #24259
Stoykov Dimitar, 04-07-2013 15:19
Stoykov Dimitar
Re : Phaeosphaeriaceae
You must check Phaeosphaeria (Leptosphaeria) monograph of Shoemaker (Can. J. Bot. 1984), or Shoem. & Babc.
There (1984) in the key for determination:

2b.  Spores with  sheath  ..............................................................................  8
.................  80.  Ascocarps  less than 200  mikroms wide.......  9
9tr.  Spores up to 8  mikom wide,  finally  echinulate: on Xeroplryllum ..............................  Leptosphaeria  xerophylli
911.  Spores 8-  11  pm wide,  smooth: on Agastache  ......................................  L. brightonensis.
8b.  Ascocarps more  than  200  mikrom wide   ........................................................  I0.

Try to identify the host plant ...

Björn Wergen, 04-07-2013 19:28
Björn Wergen
Re : Phaeosphaeriaceae
Hi Susana,

your species is most probably a member of Leptosphaeria. I think it is close to L. doliolum which has typically 3septated spores in pale grey-brown colours.

regards,
björn
Garcia Susana, 05-07-2013 08:28
Re : Phaeosphaeriaceae
hello

For now I can say it's Leptosphaeria sp. Thank you.
L. Doliolum would have the extremes of the spores acute. It could be L.conoidea?
Ascocarp Size: 270 x 220 um
Spores not seen to have ornamentation or sheath
The host, impossible to determine.
Can someone give me the monograph mentioned?


I would also like to get:
SHOEMAKER, R. A. (1984a) - Canadian and some extralimital Leptosphaeria species. Canada. J. Bot. 62: 2688-2729.


regards
Susana

Björn Wergen, 05-07-2013 09:56
Björn Wergen
Re : Phaeosphaeriaceae
I can send you the documents, no problem.

I am also interested in Shoemakers Leptosphaeria in Can. J. Bot. 62.

regards,
björn
Enrique Rubio, 05-07-2013 19:35
Enrique Rubio
Re : Phaeosphaeriaceae
And me too
Thank you
Enrique
Luc Bailly, 05-07-2013 20:42
Luc Bailly
Re : Phaeosphaeriaceae
Hi all,
I'm also interested in Shoemaker's Phaeopsphaeria monograph :)
Thanks in advance - LUC.

About this sample: it's rather a Phaeosphaeria (peridium rather thin and transluscent) that a Leptosphaeria s.str. (peridium thick and black, not transluscent).