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13-02-2026 03:30

Tomaz Vucko Tomaz Vucko

Hello! I found these immersed perithecia on a stic

13-02-2026 18:05

Margot en Geert Vullings

On February 9, 2026, we found these small hairy di

13-02-2026 18:02

Nogueira Héctor

November 2025 León (SPAIN) ID Help Hello! Thi

12-02-2026 21:34

patrice Callard

Bonjour, la face inférieure des feuilles ce certa

11-02-2026 22:15

William Slosse William Slosse

Today, February 11, 2026, we found the following R

12-02-2026 14:55

Thomas Læssøe

https://svampe.databasen.org/observations/10581810

11-02-2026 19:28

Lothar Krieglsteiner Lothar Krieglsteiner

on small deciduous twig on the ground in forest wi

25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by JÃ

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

10-02-2026 17:42

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me donner

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Leptosphaeriaceae on Asteraceae
Gustaf Fredell, 17-10-2024 17:33
Gustaf FredellHello,
A while ago I collected this pyrenomycete which is likely in the family Leptosphaeriaceae on an Asteraceae of some sort (either Jacobaea or Tanacetum) with immersed ascomata within the stem. Ascospores brown, epsilloid, 5 septate constricted in the middle septa, 28.014-36.208×3.581-4.821 uM, avg 32.523×4.10 n=7, Qe=8.03.
After quite a bit of reaserching I suspect it will be in the genus Paraleptosphaeria. The spore size fitsParaleptosphaeria nitschkei, but the 5 septa seem to not be characteristic of the species. Any help in this would be appreciated!

Kind Regards,
Gustaf Fredell
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