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05-09-2021 20:01

Enrique Rubio Enrique Rubio

These minute subsessile pale pinkish apothecia up

05-09-2021 21:40

Wilhelm Guggisberg Wilhelm Guggisberg

Spegazzinia spp. spores (Hyphomycetes) from an ind

05-09-2021 19:06

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,do you agree here with Orbilia sarraziniana?

02-09-2021 23:11

Lothar Krieglsteiner Lothar Krieglsteiner

found today east of Spiegelau, on decaying logs an

02-09-2021 13:49

Edvin Johannesen Edvin Johannesen

These tiny apothecia (less than 1 mm) were found i

03-09-2021 16:16

Edvin Johannesen Edvin Johannesen

These peach-coloured (becoming more reddish on age

03-09-2021 21:33

jean claude chasle

Bonjour, Récoltées le 27/8 sur morceau de bois

03-09-2021 19:35

hannie wijers

I tried a couple of times to sent a massage fot th

02-09-2021 22:31

Marek Capoun Marek Capoun

Hello everybody, I need help with the determinatio

02-09-2021 18:17

Chris Yeates Chris Yeates

Bonjour tous This is a discomycete the colour of

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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.
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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!