Hi again

I need your opinion on this Helotiale found on Veratrum album. I think it could be a Calycellina species.

Apothecia very densely gregarious, narrowly sessile, 0.3-0.7 mm in diam., whitish, amber when drying, margen even, only minutely downy as the excipulum.

They are growing on old stems of Veratrum album at 1700 m of altitude. Ascospores with low lipid content (< 10%). Asci 45-80 x 8-10, 8-spored, pore IKI bb of Calycina-type, arising from croziers. Paraphyses with slightly inflated tips with several not pigmented VBs, that stain in CRb. Ectal excipulum of hyaline textura globuloso-angularis. Margin with inconspicuous cylindrical with VBs, as the paraphyses.

Many thanks for help me

Hans-Otto Baral, 12-07-2016 20:30

Re : Helotiale on Veratrum album

I am sorry I cannot say. It has a bit of Parorbiliopsis = Hyaloscypha , but the abundant subiculum! Calycellina should have VBs in the paraphyses.
Zotto

Enrique Rubio, 12-07-2016 20:33

Re : Helotiale on Veratrum album

Hi Zotto

The subiculum doesn't exist. Do you reject at all Calycellina as a possibility?

Enrique Rubio, 12-07-2016 20:36

Re : Helotiale on Veratrum album

And the paraphyses have VBs that stain

• 

Hans-Otto Baral, 12-07-2016 20:50

Re : Helotiale on Veratrum album

Oh yes, but do they exist also without CRB?
maybe IKI stains them red-brown?

Why doesn't a subiculum exist? Your photo reminded me of Pezizella parasitica.
On your nice section you have put the scale on it.

Enrique Rubio, 12-07-2016 21:03

Re : Helotiale on Veratrum album

Yes, Zotto. The VBs exist, altough inconspicuous, without CRb. And they don't react in IKI.

There are not a well developped subiculum under the apothecia

Michel Hairaud, 12-07-2016 21:08

Re : Helotiale on Veratrum album

Hi Enrique, and Zotto and everyone,
Another one from your paradise we had not met yet .

The spore figure looks particular.
I would also doubt a Caycellina species, as Zotto does . Did you check whether the spore wall becomes violet in CRB ?
How about a Calycina ? These rather inconspicuous VBs coloured in CRB you can find for example in C. inopiculata (on Iris dead leaves)

Bravo pour cette trouvaille, anyway

Amitiés
Michel

Enrique Rubio, 12-07-2016 21:10

Re : Helotiale on Veratrum album

Hi Michel

The ascospores don't become violet in CRb.

Hans-Otto Baral, 12-07-2016 21:31

Re : Helotiale on Veratrum album

Hi Michel
Calycina usually has VBs as well. Could you please repeat the species name, I did not well understand.
Zotto

Michel Hairaud, 12-07-2016 22:43

Re : Helotiale on Veratrum album

Uff ! tiring day ! 
 the paraphyses I had in mind belong in Pyrenopeziza inapiculata , not Calycina
So forget my suggestion
Michel

Enrique Rubio, 12-07-2016 23:45

Re : Helotiale on Veratrum album

Yes, Michel. I was also surprising