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03-06-2026 21:37

Tony Cumberlidge

This is my second post so just starting to get use

03-06-2026 14:39

Thomas Flammer

Apothecia yellow, glassy-transparent, 80 - 120 ymS

03-06-2026 19:45

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoonI'm completely baffled by this suppo

02-05-2016 17:12

Gilles Corriol Gilles Corriol

Bonjour à tous,Suivant le conseil de Nicolas VV,

12-02-2013 01:36

Renée Lebeuf

Bonjour, J'aurais de nouveau besoin de votre aide

16-03-2014 13:39

Enrique Rubio Enrique Rubio

HI to all I'm looking for B. Hein's article on Wi

02-06-2026 14:33

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a PDF copy of the followin

03-06-2026 08:21

Yanick BOULANGER

BonjourRécolté le 17/05/2026Sur un chemin, terre

18-10-2022 00:12

Valencia Lopez Francisco Javier

Hola amigos/asRecientemente encontré esta colecci

02-06-2026 17:58

Louis DENY

Bonjour forum, Sur feuille de Populus tremula, en

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Pirottaea species
Ralph Vandiest, 14-05-2014 21:14
Ralph VandiestHello,

I found this black frb on unknown herbacious stem. Size up to 0,4mm, spores
8/11x2µm with 2/3 small droplets (<1µm) at the ends of the spores. Asci
28/38x6/8µm, hairs 23/32x3.5/5µm. Asci base colouring red in Lugol.

Any suggestions? Maybe P gallica?

Regards,

Ralph
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Hans-Otto Baral, 14-05-2014 21:56
Hans-Otto Baral
Re : Pirottaea species
I already gave the idea of Pirottaea gallica by mail. P. senecionis has longer spores.

Zotto
Ralph Vandiest, 14-05-2014 22:10
Ralph Vandiest
Re : Pirottaea species
hello Zotto,

Close call if you ask me but I have no expereince at all with this genus. When I compare both species in my key , my measurements fit better P senecionis, especially because  I also saw systematicly the minute guttules at both poles

Spores 7-12x2-3 ?m, 0(1)-septate, with a few minute guttules at both poles, LC 2; setae 25-60 ?m long; saprobic on stems of Senecio silvaticus, S. viscosus; phen.: IV-VIII Pirottaea senecionis
Spores 7-9 ?m long, non-septate; asci 30-35x5-6 ?m: setae mostly 30-45 ?m long; saprophytic on Cichoriumc(similar fungi onCicerbita and Picris); phen.: VIII-IX Pirottaea gallica

PS the only thing about the host that I remember was that it was robust (min 1meter tall  with 1cm diam.

Hans-Otto Baral, 14-05-2014 22:15
Hans-Otto Baral
Re : Pirottaea species
I assume you use Bernard's key. I abandoned P. senecionis because I have in my folder a number of collections in which the spores show a range of around 10-14 or 12-18 µm. Hope they are not misidentified.
Ralph Vandiest, 14-05-2014 22:19
Ralph Vandiest
Re : Pirottaea species
Indeed I used Bernard's key. Might ask him to have a look at this species...