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29-12-2025 23:20

éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 16:44

Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

30-12-2025 17:14

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Johan Boonefaes Johan Boonefaes

I found this unknown star form by the microscopy o

29-12-2025 10:15

Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

30-12-2025 09:04

Josep Torres Josep Torres

Hello.A Pyrenomycete sprouting sparsely but very d

29-12-2025 17:44

Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

12-11-2021 00:03

Lepista Zacarias

Hi everybody,A week ago in my fiels trip I noticed

29-12-2025 17:51

Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

29-12-2025 17:12

Bernard CLESSE Bernard CLESSE

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

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Roses carry beauty
Marja Pennanen, 04-07-2014 11:33
even on their dead leaves.

Hi there,

these beauties are about 0,2-0,3 mm wide.
The spores are about 6-8x2, asci 27-34x5-6, possibly IKI+.
Paraphyses are narrow (1.5) and do not exceed asci.
The hairs are yellow, cylindric, 30-40x3-4 and seems to carry some resins.
They tend to be sticked together.

With no knowledge of what this is: Marja
  • message #30157
  • message #30157
  • message #30157
Marja Pennanen, 05-07-2014 17:03
Re : Roses carry beauty
Hi,

this seems common at least on my own yard on old rose leaves.
They turn brownish when dry.

I studied another  and the hairs can be up to 80 micrometers long.

I do not find even a proper genus for this.

Marja
  • message #30168
  • message #30168
Marja Pennanen, 10-07-2014 10:49
Re : Roses carry beauty
Hi,

after getting no answers here, I sent a fresh specimen to Seppo.

He is now cultivating this and told me, that this is something near Microscypha / Pyrenopeziza / Psilocistella.

Seems very interesting or what?

Marja
Brian Douglas, 10-07-2014 12:55
Brian Douglas
Re : Roses carry beauty
Hi Marja,

I wouldn't be surprised if this was somewhere related to Pyrenopeziza or allied genera - the small very asci do suggest a possible link, but the same could be said for other genera as well. I'm not familiar with any Pyrenopeziza species with resinous hairs. Your images did look vaguely reminiscent of something like Pyrenopeziza betulicola.

Yes, I think they're lovely!  It would be very interesting if they're something new or very obscure, especially since you say they are common in your locality.

Cheers,

Brian

Marja Pennanen, 10-07-2014 13:43
Re : Roses carry beauty
Hi Brian,

I studied another place 15 km away looking for these.
None was found, because there were practicly no last year leaves left.
In my own yard the leaves are mixed with Betula leaves and they may have retained Rose leaves. Maybe it is not common after all, because people have a tendency to clean dead material from their garden. I leave a lot in situ for substrates to fungi.

Marja
Marja Pennanen, 19-07-2017 13:09
Re : Roses carry beauty
Hello again,

now I have collected this beautyful species many times from two different places and done some microscoping work, too. Finding old leaves of one specific Rose species is more difficult than finding these on them at the beginning of the summer.

In spite of Seppos opinion, I've come to the conclusion, that this must be an Echinula species and so belong to Hyaloscyphaceae. I still am ready to change my opinion, if better ideas appear ;)

The hairs are resinous an are glued together in the margins, 30-110x3-5. and the asci are IKI blue.

Marja
  • message #49711
  • message #49711