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25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

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Venturiocistella on Rhododendron tomentosum leves
Marja Pennanen, 21-09-2016 15:54
Hello again,

once again Raitviir gave no answer to my determination trials.

Among other ascos on Rhododendron tomentosum (former Ledum palustre) leaves I noticed some with dark setas.
The setas are up to 300x4-7.
The brown hairs are 25-45x4-8 and asci 25-36x5-6.
So, Venturiocistella venturioides is close, just that the spores are too big, 13-17x2.
Suggestions?

Marja



  • message #45019
  • message #45019
Hans-Otto Baral, 21-09-2016 17:08
Hans-Otto Baral
Re : Venturiocistella on Rhododendron tomentosum leves
I fear it would be difficult for Ain to give you an answer.

But also for me, it seems to be a new species. Something for Timo.

Zotto
Kosonen Timo, 21-09-2016 21:00
Kosonen Timo
Re : Venturiocistella on Rhododendron tomentosum leves

Hello Marja and Zotto,


That's something. We are on a foray until the end of September. Atleast Venturiocistella diversipila is a very lazy shooter, so if you fancy sending material to Stockholm and the population is big enough you could, for a change, dry it and send it. I'll rehydrate it, and if it fails to shoot I can probably squeeze atleast ITS out of dry material.


Timo


 


Timo Kosonen c/o Karen Hansen


Naturhistoriska riksmuseet


Box 50007
104 05 Stockholm


 

Marja Pennanen, 23-09-2016 08:42
Re : Venturiocistella on Rhododendron tomentosum leves
Hi Zotto, Timo,

thak you Zotto for your opinion and giving me a good laugh. I naturally ment Raitviirs opus ;) What a pitty, that I had not the pleasure to meet him.

Timo, the collection was very scanty being collected just accidently among other things, few apos, from sunday and still in fridge. So, I see no point of delivering the propably ruined ones anywhere.

Marja