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14-01-2025 18:17

Martine  Vandeplanque Martine Vandeplanque

Bonsoir à tous. Grande première rencontre avec

13-01-2025 20:17

Jorge Hernanz

Buenas tardes, adjunto datos de éste pequeño pez

14-01-2025 10:11

Margot en Geert Vullings

On a dead branch of Cryptomeria that has been lyin

10-01-2025 11:24

Wim de Groot

We found this small black spots on perennial stem

10-01-2025 18:19

Marc Detollenaere Marc Detollenaere

Dear Forum,I found some colonies of orange coloure

19-12-2024 11:54

michel bertrand

Bonjour, Après moultes recherches plutôt infruc

12-01-2025 12:52

Thomas Flammer

Spores cylindrical-fusiform, 7 times septated, IKI

11-01-2025 19:32

Jean-Luc Ranger

Bonjour, je me demande si cette Helvelle ne serait

09-01-2025 20:35

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon This small pink ascomycete, 2 mm i

10-01-2025 03:04

Masanori Kutsuna

Hello, Does anyone have following article and cou

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Conidiomata on leaves of Lysimachia vulgaris.
François Bartholomeeusen, 07-08-2024 18:24
Dear forum members,

On the discoloured leaf lesions of Lysimachia vulgaris, caused by Septoria lysimachiae, I found several separately growing synnemata (white stem with a round droplet with secreted conidia at the top).
The fascicle has the following dimensions: height 410 µm, width base 175 µm, width top 93 µm
The conidiogenous cells are filamentous and have several branches. On them develop conidia, fusiform and in lateral view slightly allantoid: dimensions:
(5.2) 5.8 - 6.6 (6.9) × (1.5) 1.9 - 2.3 (2.4) µm; Me = 6.2 × 2.1 µm ; Qe = 3

Is there any connection with Septoria lysimachiae or is this an anamorphic form of another species. Any help is welcome as I am not coming to an identification.

Kind regards,
François
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