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03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

02-09-2025 10:28

Castillo Joseba Castillo Joseba

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31-08-2025 19:41

Enrique Rubio Enrique Rubio

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Thomas Læssøe

https://svampe.databasen.org/observations/10527903

31-08-2025 17:32

Michel Hairaud Michel Hairaud

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François Corhay

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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

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Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
Björn Wergen, 14-03-2011 18:35
Björn WergenHi,

today I looked for some small fungi on Hemerocallis (fulva), perhaps you can tell me what it can be or if I am right with my determination ;)

1. The first one is obviously a Pleospora, I think it is P. phaeocomoides, with spores around 18-21x8-10µm and 1 longitudinal and 5 transverse septa.

2. The second one is perhaps a Phaeosphaeria with spores around 14,5-16x3-3,5µm and Asci 40-60x5-8µm. One central cell is a bit swollen up to 4µm. Spores seem to be smooth.

1. Pleospora cf phaeocomoides
Makro
  • message #14727
Björn Wergen, 14-03-2011 18:36
Björn Wergen
Re:Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
1. Pleospora cf phaeocomoides
Mikro1
  • message #14728
Björn Wergen, 14-03-2011 18:36
Björn Wergen
Re:Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
1. Pleospora cf phaeocomoides
Mikro2
  • message #14729
Björn Wergen, 14-03-2011 18:37
Björn Wergen
Re:Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
1. Pleospora cf phaeocomoides
Mikro3 "perithecia wall"
  • message #14730
Björn Wergen, 14-03-2011 18:37
Björn Wergen
Re:Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
2. Phaeosphaeria spec.
Makro
  • message #14731
Björn Wergen, 14-03-2011 18:37
Björn Wergen
Re:Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
2. Phaeosphaeria spec.
Mikro
  • message #14732
Alain GARDIENNET, 15-03-2011 00:29
Alain GARDIENNET
Re:Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
Hi Kazama,
Felicitations, I've never found perfect pyrenos in Hemerocallis fulva.
For the first one, it's OK for P. phaeocomoides.
For the second one, I've no idea for the moment.
Alain
Björn Wergen, 15-03-2011 01:47
Björn Wergen
Re:Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
Hi Alain,

thank you very much for help. I had some problems to find these pyrenos but I have checked a few preparations and found only one fruitbody of Phaeosphaeria and Pleospora. So it was absolutely random :D
Yannick Mourgues, 15-03-2011 12:07
Yannick Mourgues
Re:Pleospora and Phaeosphaeria (?) on Hemerocallis fulva
Salut Alain et Kazama.
Y a-t'il un doc récent sur les Pleospora qui ferait le point sur ce genre avec clés et descriptions ?
Yannick