Accès membres

Mot de passe perdu? S'inscrire

18-09-2010 23:59

Martin Bemmann Martin Bemmann

Hi, this one I found today on a dead tendril of

18-09-2010 12:28

Marja Pennanen

Hello, these grow on Vaccinium uliginosum (and

16-09-2010 13:23

Calzada Augusto Calzada Augusto

Hola amigos: Este verano pasado he recolectado He

16-09-2010 11:15

Raúl Tena Lahoz Raúl Tena Lahoz

Hi again! Yesterday I found this Ciboria on a Que

16-09-2010 11:00

René Dougoud

Chers Collègues, Je viens de déterminer un to

15-09-2010 23:22

Martin Bemmann Martin Bemmann

Hi, this one I found some days ago on a dead fr

14-09-2010 09:43

Marja Pennanen

Hello, as I mentioned I found something besides t

13-09-2010 09:07

Marja Pennanen

Hello, these are tiny, 0,1-0,2 mm wide. There

13-09-2010 08:39

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour. Une amie m'a transmis une récolte d'un

08-09-2010 21:24

Marja Pennanen

Hello, while looking for the pink Mollisia I natu

« < 1321 1322 1323 1324 1325 > »
Hymenoscyphus macroguttatus
Martin Bemmann, 18-09-2010 23:59
Martin BemmannHi,

this one I found today on a dead tendril of Vitis vinifera ssp. vinifera in an abandoned garden. It was hanging c. 1,5 m above ground. The ascocarps were slightly dried but after rehydration of living appearence.
I did not find croziers but I was immediatelly remembered on my find of H. macroguttatus on Fallopia (convolvulus?) from last October. Maybe Zotto will comment on this.
Apothecia were mostly long stalked and with reddish-brown edges when dry.
  • message #12898
Martin Bemmann, 19-09-2010 00:02
Martin Bemmann
Re:Hymenoscyphus macroguttatus
This is a bit of the hymenium with simple paraphyses that have some septa. Width is max. 2,8 µm.
  • message #12899
Martin Bemmann, 19-09-2010 00:03
Martin Bemmann
Re:Hymenoscyphus macroguttatus
An ascus (they measured 84-111 x 10,8-12,6 µm):
  • message #12900
Martin Bemmann, 19-09-2010 00:05
Martin Bemmann
Re:Hymenoscyphus macroguttatus
and the apical apparatus in IKI. The Hymenoscyphus-type was only clearly recognizable at unmature asci. Fully mature asci had such a turgor, that the apparatus was compressed to much to see the details.
  • message #12901
Martin Bemmann, 19-09-2010 00:06
Martin Bemmann
Re:Hymenoscyphus macroguttatus
And finally some spores (16,8-20 x 4,2-5,5 µm):
  • message #12902
Martin Bemmann, 19-09-2010 00:06
Martin Bemmann
Re:Hymenoscyphus macroguttatus
I hope I was not too wrong with my guess...

Best regards,

Martin
Hans-Otto Baral, 19-09-2010 11:18
Hans-Otto Baral
Re:Hymenoscyphus macroguttatus
Surely macroguttatus! I only wonder about the low refractivity of the VBs in the paraphyses, and a bit about the drought-.tolerance. Therefore it would be good to ascertain the presence of croziers .-)

Zotto
Martin Bemmann, 19-09-2010 13:44
Martin Bemmann
Re:Hymenoscyphus macroguttatus
persuaded :-)!
Here are some more pictures of paraphyses with refractive content; some are branched.
In the upper right corner there is an ascusbase as well. I add another picture in CR of very young asci in the next frame.

Regards

Martin
  • message #12908
Martin Bemmann, 19-09-2010 13:44
Martin Bemmann
Re:Hymenoscyphus macroguttatus
CR-SDS:
  • message #12909
Hans-Otto Baral, 19-09-2010 16:30
Hans-Otto Baral
Re:Hymenoscyphus macroguttatus
Now the world is in order :-)

you might perhaps know that I have still that paper unpublished on this species and the close H. menthae (although the name macroguttatus has been validated in another paper). Therefore I would like to include this collection and need the coll.data (gerne auch per mail)

Zotto
Martin Bemmann, 19-09-2010 17:19
Martin Bemmann
Re:Hymenoscyphus macroguttatus
Thank you Zotto!

I submitted the data by email.

Regards

Martin