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03-04-2026 17:11

Bohan Jia

Lastly, I have found these small apothecia on a co

31-03-2026 21:18

Miguel Ãngel Ribes Miguel Ángel Ribes

Good evening. oes anyone have the original descrip

31-03-2026 20:57

Stefan Blaser

Hello everybody, I hope somebody can help me with

26-03-2026 15:31

Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

31-03-2026 16:20

Mlcoch Patrik Mlcoch Patrik

Hello, Please about help with determination. On

31-03-2026 08:19

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-03-2026 12:18

Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

30-03-2026 12:03

William Slosse William Slosse

Hello all,On 27/03/26, in Kraaiveld in Wingene (Be

25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

28-03-2026 17:41

Louis DENY

Bonjour forum,Mollisia trouvée sur tige de Molini

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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