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11-02-2012 06:50

Roland Labbé

Bonjour !  Voici une planche et une photo macro

24-07-2024 14:07

Elisabeth Stöckli

Bonjour,Cette espèce a été trouvé sur place à

23-07-2024 19:27

éric ROMERO éric ROMERO

Bonjour, Je n'ai pas d'idée pour cette espèce t

24-07-2024 13:19

Thomas Flammer

I am looking for a PDF of the above article. Thank

22-07-2024 10:20

Hans-Otto Baral Hans-Otto Baral

Hello please note that I uploaded today an Englis

21-07-2024 10:13

Thierry Blondelle Thierry Blondelle

Bonjour,Récolte sur branchette de Castanea dans u

19-07-2024 10:24

Kozak Robert

Date: 2024.07.16Loess gorges, on soil with a lot o

21-07-2024 10:28

Alan Rockefeller Alan Rockefeller

Which Peziza did I find on horse dung in Humboldt

19-07-2024 11:08

Miguel Ãngel Ribes Miguel Ángel Ribes

Good morningThis Scutellinia from July 9 grew at 1

21-07-2024 06:23

Masanori Kutsuna

Dear all, Does anyone have these papers and send

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White peculiarity on mosses
Marja Pennanen, 27-08-2010 11:04
Hello,
is spite of unstudied old specimen, I went and picked some more last evening.
On the bottom of a dry ditch was a twig with something on.
So I pulled it off and after noticing, that it was Bisporella, put it back.
Some mosses were ripped off and covered with white spots.
Having some ealier experience of happenings like this, I studied them and there grow something hairy:
  • message #12623
Marja Pennanen, 27-08-2010 11:10
Re:White peculiarity on mosses
Home I studied them at once.
They are about 0,5-1mm wide and very short stipate.

Microscope views reminded Echinula with hairs being clued together.
  • message #12624
Marja Pennanen, 27-08-2010 11:20
Re:White peculiarity on mosses
But the hairs were tapering, sometimes septate and had some crumbs on them (resinous matter?), size about 75-120x3-4,
Spores were 8-10x2-2,5 and asci 45-70x5-6, IKI+.

Now I'm wondering, which genus do they represent.
Hyaloscypha may ne one possibility, but no species is like this and at least I've never met a species with this kind of hair behavior.

Alternatives? Marja

Addition: there were some end cells or something like that (short hairs?), some of whisc can be seen at the bottom of the photo.
  • message #12625
Hans-Otto Baral, 27-08-2010 11:30
Hans-Otto Baral
Re:White peculiarity on mosses
Maybe Hyaloscypha leuconica?
Marja Pennanen, 27-08-2010 12:16
Re:White peculiarity on mosses
Hello Otto,

I naturally checked that possibility, because it was the only one, that came to my mind.
This has got too big asci for H. leuconica.
Besides the septas are rare with them. These could have 0-2 septas as far as I saw.
The resinous matter should dissolve in Meltzer (which I don't have).
But in Lugol it was stable.

So, let's seek for another option, or what? Marja

Maybe I'll still check that...
  • message #12628
Hans-Otto Baral, 27-08-2010 12:31
Hans-Otto Baral
Re:White peculiarity on mosses
Ascus length is not so different, I see on a photo by Enrique 36-57 x 6-7 (probably alive).
Zotto
Marja Pennanen, 27-08-2010 13:47
Re:White peculiarity on mosses
Hello,
I think you may be right. I only use fresh specimen and Seppo must have had dried ones.
I didn't test again in Lugol, because there is nothing, where the resins could dissolve.
I tested lactophenol instead. Now hairs were clean, straight and about 60-120x4-6, 0-1 septate (I must have imagined the second septa).
I saw no trace of croziers as usually and the ascus bases were plain.
H. leucnica var leuconica maybe.
Hopefully I finally learn to know the tricks of this species ;)
It seems to grow anywhere...

Thankfully: Marja