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09-02-2025 22:51

Yanick BOULANGER

BonsoirEst-ce que quelqu'un peut me dire s'il s'ag

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Andreas Gminder Andreas Gminder

Hello,today my girlfriend Sylvie found a single ap

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Yanick BOULANGER

CistellaSur boisTrès petites apothécies (0.1 –

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Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello, while digging in my fungarium, I found an

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Yanick BOULANGER

BonsoirPetit pyrénomycètes d'environ 1 mm sur bo

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Enrique Rubio Enrique Rubio

Dear all.Ascomata pheritecioid, KOH-negative, flas

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Vasileios Kaounas Vasileios Kaounas

asci 170-200 x 20-22 ?m spores 21.9 [22.9 ; 23.4]

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Bharati Mandapati

Hi All, I would love some help with this Lasiobel

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Rot Bojan

Hello!On a fallen twig (possibly Corylus) I found

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Ethan Crenson

Hi all, Found by a friend last Saturday in Staten

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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