Accès membres

Mot de passe perdu? S'inscrire

09-08-2014 12:14

SYLVAIN ARD

Bonjour,J'ai trouvé ce Pyéno sur une barnche sou

08-08-2014 11:17

Blasco Rafael Blasco Rafael

Hola, a ver si me pueden ayudar, esta muestra la r

07-08-2014 19:26

Enrique Rubio Enrique Rubio

Hi again I'd like your help with this small patel

08-08-2014 17:02

Bernard Declercq Bernard Declercq

Hi,Yesterday, I collected a Nectria-like ascomycet

06-08-2014 23:35

Miguel Ãngel Ribes Miguel Ángel Ribes

Hi againThis cupulated yellow Hyalorbilia was rela

07-08-2014 13:51

Andreas Gminder Andreas Gminder

Dear friends,   yesterday we found a small inop

03-08-2014 18:36

Pablo Sandoval Pablo Sandoval

Estimados,Ando en busqueda de literatura acerca de

06-08-2014 21:36

Marja Pennanen

Hi,these are about 0,5 mm wide.The spores are abou

05-06-2014 00:05

Miguel Ãngel Ribes Miguel Ángel Ribes

Good night I have a new small Mollisia, not in co

06-08-2014 17:21

François Bartholomeeusen

Hello everyone,I found on a barkless branch of oak

« < 1116 1117 1118 1119 1120 > »
Macro ID?
Danny Newman, 25-06-2011 03:49
Danny NewmanWondering if an ID to genus is possible from this photograph alone, no microscopy.  Any and all input is greatly appreciated.

Many thanks in advance,

-Danny
  • message #15644
Stip Helleman, 25-06-2011 09:25
Stip Helleman
Re : Macro ID?
Hi Danny,
it looks like a Cenangium species

cheers,
Stip
Bernard Declercq, 25-06-2011 11:21
Bernard Declercq
Re : Macro ID?
Hi Stip,
Cenangium finally develops its apothecia above the substrate, while on the photo, the apothecia remain immersed in the substrate. If there is a stroma, we have to do with a Rhytismatales, a Coccomyces species maybe.
Regards,
Bernard
Hans-Otto Baral, 25-06-2011 11:33
Hans-Otto Baral
Re : Macro ID?
Hi all

Coccomyces is not a bad idea, but I do not see a difference to Cenangium in the development, both genera are erumpent and may finally look superficial, unless a section is made.

The substrate looks for me like Quercus. Given this is right, the fungus reminds me a bit of Cenangiopsis quercicola, a species with characteristic lanceolate protruding paraphyses.

Zotto
Danny Newman, 25-06-2011 22:34
Danny Newman
Re : Macro ID?

Thanks to all for your comments.  I've added a few more pictures, though none of them show much more detail than the first, I'm afraid.


Coccomyces looks plausible, at least in the formation of those black petal-like formations beneath the hymenial layer (technical term?), but size and substrate cause me to speculate.  Although there's no scale in any of the four photographs, if I had to guess, I would put the diameter of these fruit bodies at around or above several mm each.  Coccomyces appear to not only be much smaller (mycobank descriptions measure them in hundreds of microns) but also primarily confined to leafy substrates.  Though it's difficult to see in the photos posted, there appears to be the presence of outer excipular hairs as well.


Cenangiopsis quercola doesn't look right.  There's none of the thin, satin-black border as seen on several of these fruit bodies.  The hymenium seen here is golden yellow as opposed to C. quercola's which is a white/purple-brown.  The hairs here are much less pronounced than on C. quercola as well.  To what extent can each of these characteristics vary with conditions or age?


I've asked the collector for substrate and scale information and will report back here if/when he has any additional information.


Thanks again for your contributions.

  • message #15648
  • message #15648
  • message #15648
Hans-Otto Baral, 25-06-2011 23:03
Hans-Otto Baral
Re : Macro ID?
Hi Danny

I still keep Cenangiopsis as a possibility. Here is an image of my collection, doesn't look so different. I hope the finder will bring material to you for microscopic examination, because this is a very rare species.

Zotto
  • message #15649