16-01-2026 00:45
Ethan CrensonHi all, On decorticated hardwood from a New York
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
10-01-2026 20:00
Tom SchrierHi all,We found picnidia on Protoparmeliopsis mur
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Danny Newman
Chlorociboria glauca on indet. decorticate logThe
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Lothar Krieglsteiner
this one is especially interesting for me because
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Danny Newman
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Danny Newman
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Danny Newman
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Pirottaea on umbelliferae old stems
Enrique Rubio,
22-05-2009 17:26
Hi t all:Have you some idea about this Pirottaea with erumpent ascomata of 0.4-0.6 mm?
Enrique Rubio,
22-05-2009 17:26
Re:Pirottaea on umbelliferae old stems
Spores
Enrique Rubio,
22-05-2009 17:27
Re:Pirottaea on umbelliferae old stems
Marginal hairs of the rims acute, straight, some of they subhyaline
Enrique Rubio,
22-05-2009 17:28
Re:Pirottaea on umbelliferae old stems
Flanks hairs uncinate or at least recurved
Enrique Rubio,
22-05-2009 17:28
Re:Pirottaea on umbelliferae old stems
At 1000 x
Enrique Rubio,
22-05-2009 17:30
Re:Pirottaea on umbelliferae old stems
Asci IKI b, with croziers, 8-spored. Paraphyses cylindrical, guttulate
Enrique Rubio,
22-05-2009 17:30
Re:Pirottaea on umbelliferae old stems
Excipulum
Fernández Vicente Javier,
22-05-2009 20:20
Re:Pirottaea on umbelliferae old stems
Hola Enrique.
Podría tratarse de la Pirottaea veneta.
Nosotros la tenemos sobre tallos secos de Heleborus viridis.
Saludos, Javier.
Podría tratarse de la Pirottaea veneta.
Nosotros la tenemos sobre tallos secos de Heleborus viridis.
Saludos, Javier.
Hans-Otto Baral,
23-05-2009 21:17
Re:Pirottaea on umbelliferae old stems
I tried Nannfeldt's key and do not arrive at a satisfying result. P. veneta is only given for Helleborus. P. senecionis would be another choice, but here only various Asteraceae are given as hosts. Are you sure with Apiaceae, and which genus occurs there?
Zotto
Zotto
Enrique Rubio,
25-05-2009 19:30
Re:Pirottaea on umbelliferae old stems
No, Zotto. I don't know the sustrate. Thank you for your attempt.
Gracias Javi. En principio la macro-micro es bastante similar a Pirottaea veneta, también muy corriente por aquí. Pero el hábitat sobre Helleborus parece muy restrictivo.
Gracias
Gracias Javi. En principio la macro-micro es bastante similar a Pirottaea veneta, también muy corriente por aquí. Pero el hábitat sobre Helleborus parece muy restrictivo.
Gracias