No ideas ??

Bernard

No ideas, actually :-(

No good ideas here either. For what I know (and what I have been told) is that "glassiness" should be there from the very beginning. Meaning, that this doesn't fit the concept of "glassy" Urceolella, not even a young population.

Have you tested KOH? any changes anywhere?

I have one collection from hardwood, something under "cf. Olla", with fairly similar wide, truly septate hairs. I gave it a nickname "condom-hair", and the hair wall was thin. Here the hair wall is clearly thickened. I need to check the notes/photos. Can't remember by heart.

A very interesting fungus! Thanks Bernard,

Timo

OK Timo, I'll do an observation in the KOH before sending you the sample.

Bernard

I made an observation in KOH and I did not see anything new or special.

I have done photos again and I attach you here a compilation of all the pictures. The size of the spores varies very strongly : 6-17x2-4.

Bernard 

Now looking at the sample fresh I can only confirm Bernards photos. The hair apex is solidified, very much like in Olla transiens. Hairs are almost always under 5um wide, so that fits transiens too. Spores are different though, often around 15 um long. Olla transiens spores also vary in lenght, but they are usually under 10um long. ..There are many Olla species in Raitviir's book, not that many with crozier and none with matching sporesize/hair characteristics. Anyway, to me, it has to be an Olla.

Timo

 

Hi Timo
O. transiens is an interesting comparison. But that species does not form such urceolate apos, the hairs are laterally thin-walled and apically partly solidified. Consider also Seppo's opinion to affiliate it in Protounguicularia. I am undecided. Hopy you find out somethin by DNA.
Zotto

I agree about the apo shape / appearance. Olla millepunctata comes closer in that sense, but still more like Urceolella. Hairs are acutally thin walled for the whole length (two apos studied). Is it possible that the photos are slightly out of focus? ...yes let's see!