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07-08-2024 18:24

François Bartholomeeusen

Dear forum members,On the discoloured leaf lesions

06-08-2024 12:38

Miguel Ãngel Ribes Miguel Ángel Ribes

Good morningThis small (< 1.5 mm diameter) whit

06-08-2024 06:57

Lothar Krieglsteiner Lothar Krieglsteiner

... on stem of Peucedanum ostruthium in (sub)-alpi

06-08-2024 05:50

Lothar Krieglsteiner Lothar Krieglsteiner

17.6.24, on dead herbaceous stems in subalpine zon

05-08-2024 11:50

Thomas Læssøe

https://svampe.databasen.org/observations/10441287

28-07-2024 01:32

Valencia Lopez Francisco Javier

Hola amigosScutellinia recolectada en el suelo, en

04-08-2024 21:45

Hans-Otto Baral Hans-Otto Baral

Hello Under Documentation is now also a German tr

04-08-2024 15:32

Castillo Joseba Castillo Joseba

De ayer en rama  fina de FagusNo se por donde mir

04-08-2024 10:47

Lothar Krieglsteiner Lothar Krieglsteiner

(sub)alpine rivulet, on decaying wet stems of dico

04-08-2024 09:56

Lothar Krieglsteiner Lothar Krieglsteiner

.. 30.6.24, on attached branch of shrubby Coronill

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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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