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19-03-2017 14:59

Eduard Osieck

Hi to all,I need some help with the following coll

18-03-2017 21:16

William Slosse William Slosse

this species grows on decaying stumps of Abele in

19-03-2017 19:33

Salvador Tello

Otra Octospora. En este caso pienso que es Octosp

19-03-2017 15:51

Roland Labbé

Bonjour !Voici ce que nous croyon être une Mollis

18-03-2017 22:25

Lepista Zacarias

Hy everyone,This speciemns grew on soil among moss

15-03-2017 15:09

Castillo Joseba Castillo Joseba

En madera de  AcaciaMe ha costado mucho encontrar

18-03-2017 19:54

Malcolm  Greaves Malcolm Greaves

Apologies for the apaling state of this and poor p

02-03-2017 21:17

Lepista Zacarias

Dear all,I'm again in trouble to classify specimen

18-03-2017 12:20

Peter Thompson

Hello Everyone,I have been considering a black asc

17-03-2017 21:06

Enrique Rubio Enrique Rubio

HI againBlackish, not setose pseudothecia up to 0.

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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