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03-10-2024 20:56

Margot en Geert Vullings

These orange discs were found in September on mois

04-10-2024 17:08

Birgit Lüthje

I just found a very similar ascomycet on a heap of

05-10-2024 15:55

B Shelbourne B Shelbourne

• Macro and habitat suggest Humaria hemisphaeric

01-10-2024 17:02

B Shelbourne B Shelbourne

• Habitat and macro suggest Chlorociboria.• P

01-10-2024 16:15

Lothar Krieglsteiner Lothar Krieglsteiner

.. on deciduous twig, on and near old specimens of

01-10-2024 11:14

Michel RIMBAUD

Bonjour,La semaine dernière en réoltant des mycÃ

30-09-2024 22:15

Alan Smith

I found a 'forest' of hair-like structures on the

29-09-2024 13:17

B Shelbourne B Shelbourne

• Macro and habitat suggested Ciboria, and C. ba

22-09-2024 20:24

Robin Isaksson Robin Isaksson

Dear all, I did found this one on on S. acauli

08-09-2024 21:31

B Shelbourne B Shelbourne

• Stromatised substrate and macro like genus Rut

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Hamatocanthoscypha on Cupressus leaves
Enrique Rubio, 09-01-2013 20:25
Enrique RubioHi again

This material was sent to me from M. Tapia (Navarra, NE of Spain) as Hamatocanthoscypha species growing on rotten, blackish, leaves of Cupressus. The ascomata are minute, briefly stipitate and allways white.

The spores are ovoid eguttulate or provided of 1-2 small polar guttules. Asi IKI negative (-), croziers positive (+). Paraphyses with any content. Ectal excipulum elongate of and + or - elongate textura prismatica. Hairs granulate, many of them uncinate.

I think is a good Hamatocanthoscypha species that not fits well with H. obsoleta. In Zotto's CD there is an Hamatocanthoscypha 'rotundispora' HB- 7444 that is very close with this fungus.
What's your opinion?


Many thanks again
Enrique
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Hans-Otto Baral, 09-01-2013 21:07
Hans-Otto Baral
Re : Hamatocanthoscypha on Cupressus leaves
I do not understand the name (by Raitviir & Galán), because also in the type the spores are ellipsoid. But yours is certainly the same species as the one found by Jean-Paul.

Enrique Rubio, 09-01-2013 21:14
Enrique Rubio
Re : Hamatocanthoscypha on Cupressus leaves
Thanks, Zotto. Really the spores are not roundish!
Have you the original description in Nova Hedwigia?
Hans-Otto Baral, 09-01-2013 21:28
Hans-Otto Baral
Re : Hamatocanthoscypha on Cupressus leaves
not electronically
Enrique Rubio, 09-01-2013 23:09
Enrique Rubio
Re : Hamatocanthoscypha on Cupressus leaves
In Raitvir's paper, Revised Synopsis of the Hyaloscyphaceae (2004), the spores appears to be roundish and the texy says 'spores broadly elliptical to subglobose without lipid guttules, 3.2-3.6 x 2-2.3 microns' It seems to be smaller for our fungus...
Hans-Otto Baral, 09-01-2013 23:31
Hans-Otto Baral
Re : Hamatocanthoscypha on Cupressus leaves
Oh yes, my database contained an error, 6 instead of 3.6 µm.

Here the description

Zotto
Enrique Rubio, 09-01-2013 23:47
Enrique Rubio
Re : Hamatocanthoscypha on Cupressus leaves
Thank you very much, Zotto
Vasileios Kaounas, 20-01-2024 23:04
Vasileios Kaounas
Re : Hamatocanthoscypha on Cupressus leaves
its laricionis ?
Michel Hairaud, 21-01-2024 09:22
Michel Hairaud
Re : Hamatocanthoscypha on Cupressus leaves
Dear Enrique, 
Nice to hear from you, hope you are fine again. 

I had overlooked this post ... 
Yes indeed the spore shape does not properly correspond to the fungus name !

I am sending to you the paper through your mail adress 
Biogeographical variability and re-description of an imperfectly known species Hamatocanthoscypha rotundispora (Helotiales, Hyaloscyphaceae) 
 
Amitiés
MichelÂ