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05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

Phaeohelotium parasulphuratus ?
éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

08-03-2026 14:05

Helvella lacunosa
Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

07-03-2026 22:22

Volutella?
Josep Torres Josep Torres

Hello.Some very tiny conidiomes collected in the D

06-03-2026 17:51

Orbilia?
William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 16:30

Is this Diaporthe rudis?
François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

indian literature
Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

05-03-2026 19:29

Ciboria caucus?
William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

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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