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25-05-2026 16:35

Anamorphe d'Hypomyces aurantius ? sous saule cendré (Salix cinerea)
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

29-05-2026 15:35

Fusarium sur Robinier
daniel FERRE

Bonjour à tous,Je voudrais votre aide pour cette

28-05-2026 16:15

Literature request: Caloscypha fulgens f. caesioalba
James Mitchell

Hello,Does anyone have the original publication of

28-05-2026 11:06

Stictidaceae (?) on Typha latifolia - short-spored, I+ - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10596750

23-05-2026 11:44

Coprophilous pyrenomycete wild boar dung
Charles Grapinet Charles Grapinet

Hello, I am having trouble identifying this copro

25-05-2026 16:44

Ascomata under epidermis Carex
François Bartholomeeusen

Hi forum members,During an excursion organised by

26-05-2026 21:25

small ascomycetes on Quercus sp.
Dirk Gerstner

Hello everyone, I'm completely stumped by this li

26-05-2026 22:44

Incrucipulum capitatum ?
Ethan Crenson

Hi all, I think I have Incrucipulum capitatum her

22-05-2026 14:44

minute Saccobolus from cow-dung (moist chamber from Portugal)
Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

22-05-2026 13:29

Pseudophacidium ?necans on Vaccinium myrtillus
Gernot Friebes

Hi,I am curious to hear your opinion on this mater

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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