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12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

14-03-2026 13:51

Thierry Blondelle Thierry Blondelle

Hi everybody Under Quercus ilex, i hesitate to na

12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

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

12-03-2026 14:37

David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

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Lachnum / Lachnellula
Miguel Ángel Ribes, 21-07-2009 00:27
Miguel Ãngel RibesHi again

This another one is 1-1,5 mm, subsesil, in Pinus sylvestris, hymenium yellow-orange, outer surface covert with apparently white hairs. Microscopically it remembers me Lachnellula subtilissima, but it is too small and all the apos are very closed, not completly open at maturity like L. subtilissima.

Thank you,

Miguel Ángel
  • message #8536
Miguel Ángel Ribes, 21-07-2009 00:28
Miguel Ãngel Ribes
Re:Lachnellula / Lachnellula
Ahother closer macro
  • message #8537
Miguel Ángel Ribes, 21-07-2009 00:31
Miguel Ãngel Ribes
Re:Lachnellula / Lachnellula
Cylindrical-fusiform spores.
Sporal measurements (1000x, in water, fresh material)
5.8 [7.4 ; 7.7] 9.2 x 1.6 [2.1 ; 2.2] 2.7; Q = 2.3 [3.5 ; 3.8] 4.9 ; N = 109 ; C = 95%; Me = 7.53 x 2.11 ; Qe = 3.63
  • message #8538
Miguel Ángel Ribes, 21-07-2009 00:34
Miguel Ãngel Ribes
Re:Lachnellula / Lachnellula
It is incredible, but I have only see one asci, in water, so I don't know it has croziers or not, nor the IKI reaction. It has 47,4 x 6,6 microns.
  • message #8539
Miguel Ángel Ribes, 21-07-2009 00:37
Miguel Ãngel Ribes
Re:Lachnellula / Lachnellula
But it has a lot of septated paraphysis, cylindrical, but frequently branched and with several bubbles. This one not branched.
  • message #8540
Miguel Ángel Ribes, 21-07-2009 00:40
Miguel Ãngel Ribes
Re:Lachnellula / Lachnellula
And this another paraphysis very branched
  • message #8541
Miguel Ángel Ribes, 21-07-2009 00:41
Miguel Ãngel Ribes
Re:Lachnellula / Lachnellula
This another structure I am not sure they are paraphysis again or hairs.
  • message #8542
Miguel Ángel Ribes, 21-07-2009 00:48
Miguel Ãngel Ribes
Re:Lachnellula / Lachnellula
And finally, I have not see a clear hairs. Apparently it has very clear white hairs, but the best image I have obtain about it is this amorphous hyphal mass with external granules.

Thank you in advance,

Miguel Ángel
  • message #8543
Hans-Otto Baral, 21-07-2009 13:31
Hans-Otto Baral
Re:Lachnum / Lachnellula
Your apos are quite big and open, typical of Lachnellula subtilissima when rehydrated. Also from the substrate there is nothing else to be excpected. Lachnellula subtilissima is variable, having usually hemiamyloid but also inamyloid asci, even the croziers vary. Lachnellula calyciformis has more fusoid biguttulate spores and always inamyloid asci.

You should try a section with a sharp razor blade then you are sure which are the hairs. they must be distinctly rough-warted,

Cheers
zotto
Miguel Ángel Ribes, 21-07-2009 17:40
Miguel Ãngel Ribes
Re:Lachnum / Lachnellula
Thanks Zotto, I never had seen so small L. subtilissima...

I made more than ten sections at the margen with a razor blade, taken only "white material", but all the times I only obtain an amorphous mass. The best one is the photo I attached yesterday, so I am very surprised because all the otrher Lachnum sp. hairs I had seen before were very easy to recognize and to make a photo... :( Mistery :)

Thanks again

Miguel Ángel