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30-07-2025 10:12

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

31-07-2025 16:32

Andreas Gminder Andreas Gminder

Dear collegues,today I found on a very fresh fire

30-07-2025 20:52

Bohan Jia

Hi together,  I've been looking posts in AscoFra

30-07-2025 18:06

Stefan Jakobsson

On a decorticated twig of Alnus incana on moist so

29-07-2025 18:59

Castillo Joseba Castillo Joseba

Me mandan el  material seco de Galicia, España,

28-07-2025 12:34

Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

28-07-2025 04:59

Richard Droker

Growing on resin (over moss on Tsuga heterophyll)l

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

24-07-2025 19:02

Castillo Joseba Castillo Joseba

De esta mañana en tronco caido de Haya A ver si

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Leptosphaeria eustoma?
Gernot Friebes, 12-08-2010 12:35
Hi,

a friend of mine sent me two pyrenos which are not definitively determined. The first one is a Leptosphaeria (eustoma?) on Daucus carrota which grew subepidermal. I was not able to find any asci anymore but according to the finder they are 140-160 x 14-15 µm. The spores are 22,5-25 x 7-8(10) µm and always three-septate if mature. The peridium is quite thin. The ostile apparently doesn't consist of periphyses.

Best wishes and many thanks,

Gernot
  • message #12520
Gernot Friebes, 12-08-2010 12:36
Re:Leptosphaeria eustoma?
left: ostile, right: peridium
  • message #12521
Gernot Friebes, 12-08-2010 12:37
Re:Leptosphaeria eustoma?
spores (scale=10 µm):
  • message #12522
Martin Bemmann, 12-08-2010 13:58
Martin Bemmann
Re:Leptosphaeria eustoma?
Hi Gernot,

Leptosphaeria libanotis is known to attack Daucus carrota (and other Umbelliferae). Spores are very similar to yours.
Cf. Lucas/Webster Tr. Br. myc. soc. 50, 1967, p. 100

Regards,

Martin