Spores 6,8-9,3*1,6-2,4 um. I haven't noticed any oil drops in them.
Apical pores in asci are blued by IKI.

This is how it looks In KOH 3%

Excipular cells

Please, tell if I should pay attention on some other structures...

Irina

Hello Irina,

the foto looks as if it is KOH negative, so M. "pyrenopezizoides" is the wrong part of the key.
To me it seems like simply M. cinerea (small spores, KOH-, no oil).

best regards,
Andreas

Thank you, Andreas!
The KOH-reaction is really a problem, cause I still have never seen strong positive reaction working with Mollisias!
Irina

Hi Irina,

yes, I admit that it sometimes can be a problem. Especially when you have dried spimens or old and overaged collections (such as yours shown here ...). Sometimes there is a tendency to become yellowish when overaged, what might be interpreted as a positiv KOH reaction.
Best is, you collect Mollisia rosae (on Rosa spp.) or Mollisia fusca (e.g. on wet Alnus twigs), which both have a strong positive reaction. Then you can see how a positive reaction looks like.

best regards,
Andreas

Thank you, Andreas,
I'll try to collect Mollisias from this substrata.
Irina

Andreas,

If you don't mind, I have some more questions. How I can distinguish Mollisia cinerea from M. cinerella, M. cinereoolivascens, M. olivaceocinerea? All these species have small spores and it is not clear about oil drops.

And one more - is that normal habitus for Mollisia cinerea (photo)?

Dear Irina,

good question! I would like to know the answer. The cinerea-group (if they form a group ....) is a problem for me still. I think I can recognize what I call olivaceocinerea quite well. It has an excipulum which becomes greenish when KOH is added instead of greyish as in the other species. Moreover the spores are not completely empty and they are a little bit longer. You can see a documentation on this site: http://mollisia.de/Arten/olivaceocinerea.html which is not linked yet on my homepage. There is another species in this group, which will be described in next time, from France, which has spores which are septate already in mature spores in the ascus. I will call it M. atlantica, because it is quite common at the atlantic cost but I have never met it here in continental Germany.

The habit on your foto may well be M. cinerea. The apothecia on the left side are already detoriating or beginning to have a mould on them.

best regards,
Andreas

P.S.: Are you from Ucraine and have sent me some specimens last year?

Andreas,
Thank you for information! I saw this olivaceous tint of excipular hyphae some times, but probably not so strong.
Yes, it's me:)

Irina

Hello im a biology student and now im trying to identify some Mollisias and i just have Denni's key and Seave's key but ithey both are not so successful i dont if someelse can help with this sending me a kye that can help  please

Hello.
You should have a look here : http://www.mollisia.de/start.html?
Yannick