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21-10-2021 13:57

Miguel Ãngel Ribes Miguel Ángel Ribes

Buenos díasMe han pasado esta Scutellinia recogid

21-10-2021 15:44

François Bartholomeeusen

Dear forum members,On a rotten piece of wood I fou

21-10-2021 13:26

Chris Yeates Chris Yeates

Bonjour tous While processing images of this deli

21-10-2021 21:09

Enrique Rubio Enrique Rubio

I would be grateful for an opinion on this Orbilia

20-10-2021 08:29

Mirek Gryc

Hello all.I would ask for help in identifying this

21-10-2021 20:14

Ronald Morsink

These i found on the side of a dry creek in the Ne

20-10-2021 21:37

Garcia Susana

Hola, He recogido este ascomyceto que crece de m

10-10-2021 17:35

Marek Capoun Marek Capoun

And one more question from me for today.It was the

18-10-2021 23:10

Jorge Hernanz

Hemos encontrado éste Geoglossum en hábitat alpi

18-10-2021 18:59

Thorben Hülsewig

Hi there,3 days ago I found this ascomycet on leav

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On Urtica
Enrique Rubio, 05-09-2021 20:01
Enrique RubioThese minute subsessile pale pinkish apothecia up to 400 microns in diameter grew on Urtica stems at 1750 m of altitude. The margins are denticulate by the existence of fasciculate hairs with smooth or only very slightly asperulate walls at the base of the terminal elements. These hairs, as well as the paraphyses, have well visible VBs inside the cells. Asci IKI b with croziers. Excipulum globulosa to angularis. Ascospores OCI = 0.
I think in the genus Psilocistella rather than Psilachnum or Cistella, but I would like to know your opinion.
  • message #69981
  • message #69981
  • message #69981
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Hans-Otto Baral, 05-09-2021 20:47
Hans-Otto Baral
Re : On Urtica
Hi Enrique

could you please send me this in higher resolution? Esp. the excipulum photos are too small. A possibility could also be a hyaline Pyrenopeziza, although I would almost exclude this.

Enrique Rubio, 05-09-2021 20:58
Enrique Rubio
Re : On Urtica
Yes. I send you them by Wetransfer.
Hans-Otto Baral, 05-09-2021 21:29
Hans-Otto Baral
Re : On Urtica
I see better now, especially the one hair with distinct regular warts, reminiscent of a Cistella. The superficial growth would exclude a Pyrenopeziza. Almost smooth hairs could occur in Cistella I think. The guttule in the hairs seems remarkable. Anyway, a good suggestion is hard to give. C. grevillei in a wide sense? But the long hairs and the guttule are unusual.

I compared C. cf. orientalis which I know from Eryngium. Spore contents are different. The type was on indet. stem. Regrettably I do not have Raitviir 1978 (K sistematike rodu Cistella) in digital form.
Enrique Rubio, 06-09-2021 09:36
Enrique Rubio
Re : On Urtica
Certainly there were few apos to make more preparations and study the hairs better. I will try to find more material.
By the way, what are the details of the Raitviir's publication on Cistella that you refer to?
Thanks a lot, Zotto
Hans-Otto Baral, 06-09-2021 10:15
Hans-Otto Baral
Re : On Urtica
It is Scripta Mycol. 8: 147-159
Enrique Rubio, 06-09-2021 10:22
Enrique Rubio
Re : On Urtica
It does not appear to be easy to achieve...