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18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

18-03-2026 11:52

Thomas Læssøe

https://svampe.databasen.org/observations/10493688

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

17-03-2026 10:40

Martine  Vandeplanque Martine Vandeplanque

Bonjour à tous.Chaque année en mars ou avril, il

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Bernard CLESSE Bernard CLESSE

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Enrique Rubio Enrique Rubio

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François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

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Hulda Caroline Holte

Hello, I found and collected this species growing

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

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Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

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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