Accès membres

Mot de passe perdu? S'inscrire

09-10-2025 22:14

Hymenoscphyus or Bryoscyphus? Yellow cup / white stipe
S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Amicodisca svrcekii ?
Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

Lophiostoma
David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

04-10-2025 02:13

Hymenoscyphus with a reddish stipe
Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

White asco on Fagus grandifolia leaf
Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

03-10-2025 22:03

Unknown asco found in a root hole
Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

03-10-2025 13:44

Unknown on Populus -> Pyxidiophora species
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

05-10-2025 16:41

Could this be Bacidina chloroticula in a mat of algae/lichens?
François Bartholomeeusen

Dear forum members, On a mat of dried algae/liche

04-10-2025 02:17

small disco
Masanori Kutsuna

Hello, This is a quite common species on rotten w

03-10-2025 10:25

chaetomium sp sur crotte lapin
Jean-Luc Ranger

Que pensez-vous de ce Chaetomium sp : 10- 10,5 x 6

« < 1 2 3 4 5 > »
Niesslia?
Garcia Susana, 10-06-2013 21:11
Hello:

Pyrenomicete found that I can not identify


data:
Superficial pseudothecia. Size 140-175um in diameter
Host: leaves, probably Cornus sp
Hairs: 45-145 x 4 - 5um. Enlarged at the base (x10 - 13um). Thick wall, 2um. Pointed, not septate.
Asci and spores: data on the images


Consulting the bibliography I think it might be the genre Niesslia. But I have no information of the genre.
Could it be? Thanks in advance


A greeting


Susana
Navarra - Spain?

  • message #23813
  • message #23813
  • message #23813
Björn Wergen, 15-06-2013 02:07
Björn Wergen
Re : Niesslia?
Hi Susana,

interesting finding. Niesslia species do not have apical structures staining red in Congo. This is hint for a member of Diaporthales (and several smaller groups, like Annulatascaceae). But for now I don't know a species with this features.

regards,
björn
Garcia Susana, 17-06-2013 08:16
Re : Niesslia?
Hi Böjrn:

Thanks for your specification, I will try looking in the direction that you indicate.

Regards
Susana
Christian Lechat, 17-06-2013 10:15
Christian Lechat
Re : Niesslia?
Dear all,
I think this fungus is not Diaporthales because in this order, the asci are free in the centrum.
The genus Niesslia seems fit with Susana's collection. It would be useful to see a photo of ascomata on the substratum and asci observed in water.

Regards,
Christian
Garcia Susana, 17-06-2013 12:47
Re : Niesslia?
Hello
I send some pictures of the species on the substrate and asci observed in water.
I do not see paraphyses.

Regards
Susana
  • message #23926
  • message #23926
  • message #23926
Walter Gams, 01-07-2013 09:14
Walter Gams
Re : Niesslia?
Dear Susana,
Niesslia has quite superficial perithecia (not pseudothecia), which tend to collapse disc-like on drying. I do not think you have a Niesslia. Otherwise I would be very pleased to see it, because I am just trying to revise this large genus.
Best wishes        Walter Gams
Garcia Susana, 02-07-2013 11:35
Re : Niesslia?
Hi Walter:
Perithecia I found were superficial and loosely adherent to the substrate. Finally I believe that they could be of Niesslia ilicifolia.
I collect four perithecia, 2, I use for my observations, the other two I store. If you have interest in them I can send you the sample. Send me your address at private.
A greeting

Susana

Walter Gams, 02-07-2013 17:45
Walter Gams
Re : Niesslia?
Dear Susana, My address is Molenweg 15, NL-3743 CK  Baarn, Netherlands.
I look forward to examining your material and possibly getting a pure culture.
Best regards         Walter