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14-08-2022 18:08

Edvin Johannesen Edvin Johannesen

Found on deciduous wood (probably Betula) in subal

14-08-2022 15:50

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,this Orbilia grew on a strongly rotten branc

13-08-2022 17:18

Stephen Mifsud Stephen Mifsud

I assumed these are weak colonies of Neurospora on

10-08-2022 15:45

Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

04-07-2022 18:45

Enrique Rubio Enrique Rubio

I can find no suitable answer for this white Bryos

11-08-2022 00:45

Stefan Jakobsson

On a thin deciduous stick (Salix/Alnus/Betula) on

10-08-2022 18:45

François Bartholomeeusen

Good evening all, On 5 August 2022, a friend gave

11-08-2022 08:16

Josep Torres Josep Torres

Hola.Un muy diminuto Pirenomyceto sobre un tronco

10-08-2022 09:11

Josep Torres Josep Torres

Hola.Un Piremomyceto recogido este pasado domingo

09-08-2022 20:06

Stephen Mifsud Stephen Mifsud

I have found an interesting aspergillus on flowers

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Pirottaea on umbelliferae old stems
Enrique Rubio, 22-05-2009 17:26
Enrique RubioHi t all:
Have you some idea about this Pirottaea with erumpent ascomata of 0.4-0.6 mm?
  • message #7870
Enrique Rubio, 22-05-2009 17:26
Enrique Rubio
Re:Pirottaea on umbelliferae old stems
Spores
  • message #7871
Enrique Rubio, 22-05-2009 17:27
Enrique Rubio
Re:Pirottaea on umbelliferae old stems
Marginal hairs of the rims acute, straight, some of they subhyaline
  • message #7872
Enrique Rubio, 22-05-2009 17:28
Enrique Rubio
Re:Pirottaea on umbelliferae old stems
Flanks hairs uncinate or at least recurved
  • message #7873
Enrique Rubio, 22-05-2009 17:28
Enrique Rubio
Re:Pirottaea on umbelliferae old stems
At 1000 x
  • message #7874
Enrique Rubio, 22-05-2009 17:30
Enrique Rubio
Re:Pirottaea on umbelliferae old stems
Asci IKI b, with croziers, 8-spored. Paraphyses cylindrical, guttulate
  • message #7875
Enrique Rubio, 22-05-2009 17:30
Enrique Rubio
Re:Pirottaea on umbelliferae old stems
Excipulum
  • message #7876
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.
Hans-Otto Baral, 23-05-2009 21:17
Hans-Otto Baral
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
Enrique Rubio, 25-05-2009 19:30
Enrique Rubio
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