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12-04-2024 12:22

B Shelbourne B Shelbourne

Orbilia xanthostigma, sensu Baral (2020). • Hab

07-04-2024 20:49

B Shelbourne B Shelbourne

Another species that appears easy to identify from

09-05-2010 20:06

Marja Pennanen

I found these on Epilobium. They are about 0,1-0,

11-04-2024 08:53

Viktorie Halasu Viktorie Halasu

Hello, does anyone know a collection of Dendrosto

05-09-2019 11:03

Simon Kennedy

I would be grateful, if anyone could let me have a

11-04-2024 16:30

Laurent LENEL Laurent LENEL

Bonjour à tous, j'ai récolté quelques morilles

09-04-2024 15:29

ruiz Jose antonio

Hola a todos,recolectada en zona de ribera, con hi

09-04-2024 21:40

Simon Gurtner Simon Gurtner

Good evening found on 25.03.2024 in Bern, Switzer

09-04-2024 13:13

Castillo Joseba Castillo Joseba

Me mandan elmaterial seco de Galicia (Espsaña), r

08-04-2024 21:49

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Le susbstrat, une écaille de côn

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Periconia britannica ?
Charles Grapinet, 29-02-2024 10:42
Charles GrapinetHello,

Yesterday I found a Periconia on a dead Aesculus leaf, near Belfort (north east of France, altitude of 400m). I need help with identification.


Description :


- solitary conidiophores, with only 3 examples scattered on a dead leaf of Aesculus.
- Foot approximately 400 µm long, with three septa. Foot width of 10 to 15µm depending on location. Slight enlargement of the foot at the apex, at the level of the cluster of conidia.
- the cluster of conidia has a diameter of 30 to 45 µm. It is fixed unilaterally. I noticed this element when varying the focus of the microscope. See on photo number two.
- the conidia are slightly warty (hardly visible in my photos), yellow-brown and measure 6 to 7µm in diameter.


These elements remind me of Periconia britannica described by Ellis (1976), because the cluster of conidia is fixed laterally and the conidia are small in diameter.


What do you think ?


Furthermore, does anyone have a key to Periconia to recommend to me?


Charles

  • message #78420
  • message #78420
  • message #78420
Hoyo Pilar, 01-03-2024 10:16
Re : Periconia britannica ?
Buenos días!

Espero que sea útil.

Saludos 
Pilar Hoyo
  • message #78427
Hoyo Pilar, 01-03-2024 10:19
Re : Periconia britannica ?
La clave
  • message #78429
Hoyo Pilar, 01-03-2024 10:21
Re : Periconia britannica ?
Una imagen
  • message #78430
Charles Grapinet, 01-03-2024 16:00
Charles Grapinet
Re : Periconia britannica ?
Buenas tardes,

Gracias por la clave que es muy interesante. Me parece que se corresponde bien con Periconia britanica ! Voy a buscar otros conidióforos para confirmar.

It seems to me that several species of periconia have been described recently.. If anyone has an even newer key, I'm interested.

Saludos,

Charles