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20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

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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