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18-07-2025 23:03

Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

Hi,do you think this collection could be R. ulmari

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Periconia ? with white smooth conidia
Stephen Martin, 30-03-2020 00:28
Stephen MartinI found two Hyphomycetes on the lower stems of Sonchus oleraceus (one also on Oxalis, hence not host specific), but I shall tackle one here - an organism related to (or is?) Periconia

Conidiophore wiry, 25-35um wide, smooth, dark gun-grey (a bit translucent), evenly septate (cells rectangular, sbout 120 um long) bearing at the top a cluster of white conidia (c. 100) which when in contact with water they eject and spread out. There seem to be no elaborate (if any) branching at the head. I have seen a few conidiophores which where simple branched, (just 1 or 2 branches from the main). Spores oval, smooth (in my opinion) readily staining in cotton blue except a rather thick wall.

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Stephen Martin, 30-03-2020 21:41
Stephen Martin
Re : Periconia ? with white smooth conidia
What genera are closely related to Periconia please? It seems Periconia have dark conidia that are visibly verrucose (echinose).