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26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

25-03-2024 14:08

Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

25-03-2024 03:56

B Shelbourne B Shelbourne

• Scuttelinia: Macro and habitat.• S. scutella

25-03-2024 20:21

DAVID MARCOS DAVID MARCOS

Bonjour, je m'appelle David et je débute dans l'i

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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