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19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

12-04-2026 15:52

Gernot Friebes

Hi,I'm looking for help with this anamorph collect

14-04-2026 21:52

Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

16-04-2026 22:09

Buckwheat Pete

Hello, I'd like to ask about this older specimen:

15-04-2026 19:33

Fátima Durán Manzaneque

Hi!! I need help, I found this Ascomycete but I d

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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.

Zotto
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...
Thanks!