The pretty guttulation of the living paraphyses clearly excludes a Discinella, also it excludes Roseodiscus formosus, which looks quite similar.

Possibly your fungus is C. tenuispora (C. clavus var. grandis). This depends on the thickness and length of the stipe of the apothecium. Have you a side view of an apo?

The apos are non-gelatinous, right?

Zotto

the stipe is short and goes from thick to thin. It is gelatinous yes. At least i asume you mean by gelatinous you can easily press it under the glass? Not like for instance dacrymes?

Maybe linked to mosses? Bryoscyphus? 
Raúl

Well, this does not really look typical for C. tenuispora, which is also a white fungus, but I am neither happy with C. clavus. Gelatinous means in fact a consistency similar as in Dacrymyces. The medulla would be gelatinous if we had an Omrbrophila, for instance. But in Ombrophila there are never these droplets in the paraphyses.

What might help: a section showing the ectal excipulum (the prismatic cells on your photo fit already clavus but not tenuispora). And a look for the croziers (present inclavus) and iodine reaction of the ascus apex (variable). Absence of crystals would also support clavus.

But clavus has generally a convex hymenium which is not shown here. This leaves some  doubts.

Yes, Raul, Bryoscyphus is a very good alternative!

Zotto

I see, well difficult! I dont have iodine. I will send it to Stip. Doesnt bryoscyphus have droplets in the spores? I didnt really see those. I do know B atromarginatus wich i find consistantly in flowerpots with marchantia

http://waarneming.nl/soort/photos/27990?from=2010-05-28&to=2010-05-28?

Yes, that is a good idea. I confirm: all true Bryoscyphus that I know have at least a medium high oil content (3). And misplaced species have a Calycina- type of apical ring. But I do not think so in your case.

Zotto

And something next to Hymenoscyphus ravus?

Raúl

Yes, but these are rather small apothecia and spores below 10 µm length.

How large are the apothecia?

Zotto

the size is about 1-2 mm The specimens are getting redder/browner by the way

Yes, this turn to reddish is due to the droplets in the paraphyses (oxidation), so I can imagine that the fresh fungus was white

Zotto

Thanx Ismaël,


is it a truffle?  ;-)


Stip

ono! well back in the field again. not one survived? to much sand i suppose..

They survived, a bit burried under soil. too much air is more likely. they shake rattle and roll in the mail
I did research one fruitbody last night asci are IKI -, croziers not found. tonight after work I will test KOH pretreatment.
No connection with mosse was found Frb's are growing on some grass-like debris.
Stip

Hi,



the asci remain IKI- after KOH pretreatment and croziers can not be found, so its position remains doubtfull. In most respects it can be seen as C. clavus, only no croziers. a Similar looking secies is H. vernus without croziers but there the spores are somwat more elongate / less ovoid and with 2 small but distinct oil guttules and a IKI blue apical ring.

So there rest only a few pictures to show and perhaps there are som fresh ideas

Cheers,
Stip