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24-03-2026 19:59

William Slosse William Slosse

Hello everyone,On 23/03/26, I found the following

21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

24-03-2026 21:37

Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

24-03-2026 21:07

Ethan Crenson

Hello all, A friend collected this asco in a wood

23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

24-03-2026 15:44

Åge Oterhals

I hope someone can confirm the name of this collec

24-03-2026 11:58

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, recolectado en c

23-03-2026 13:24

Paul Cannon

Could anyone provide me with a pdf of Auerswald's

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

21-03-2026 22:59

Petr Soucek

Good evening, I would appreciate some advice on th

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Hyalopeziza on a Betula leaf
Marja Pennanen, 13-09-2016 10:27
Hello forum.

last year I found a Hyalopeziza on Betula leaf, which was determined H. cf. tianschanica by Seppo. Now I found something similar, but not quite.

The fruitbodies are about 0,1 mm wide,
The spores are 5-7x2-3 and have polar droplets, which makes them dufferent from the ealier finding, where I did not see droplets and the spores are wider.
The asci are about 20-35x 6-8 and seems IKI-, last year faint IKI blue.
The hairs are with lumen, up to 90x3-4 and there are shorter a bit Cistella like hairs, too.

The macrophotos were this time a mission impossible ;)

Ideas?

Marja

  • message #44908
  • message #44908
Thomas Læssøe, 13-09-2016 10:34
Re : Hyalopeziza on a Betula leaf
could it be Venturiocistella diversipila?
Hans-Otto Baral, 13-09-2016 10:44
Hans-Otto Baral
Re : Hyalopeziza on a Betula leaf
Hmm, very interesting. But Venturiocistella has dark brown setae.
No idea!
Marja Pennanen, 13-09-2016 11:06
Re : Hyalopeziza on a Betula leaf
Hi Thomas, Zotto,

thank you for your opinions. So Hyalopeziza sp. must be enough now for a determination
As far as I know, Seppo is busy now and I have to dry the scanty specimen, which I collected in a place hard to reach, that I doupt I do not visit any more this season.

Marja





Kosonen Timo, 13-09-2016 21:20
Kosonen Timo
Re : Hyalopeziza on a Betula leaf
Hello Marja,

Seppo is indeed busy with Agarics right now, but if you think the sample will make it, I'll be at the Stockholm museum until Wednesday 21th. After that on a long field trip.

Timo