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23-01-2025 15:46

Malcolm  Greaves Malcolm Greaves

Could I have peoples opinion on this Geoglossum.Wi

24-01-2025 18:09

Nogueira Héctor

19/01/2025 Villameca (León) España  Buenas En

28-01-2025 07:57

Thierry Blondelle Thierry Blondelle

Bonjour à tous,On cupules of FagusApo de 0.8 à 2

27-01-2025 02:02

Bharati Mandapati

All, I would love some help with a purple-brown d

26-01-2025 11:41

Yanick BOULANGER

BonjourJ'ai récupéré ce Rosellinia d'un ami, rÃ

24-01-2025 18:39

Jean-Luc Ranger

Bonjour, j'ai ce petit ascome d'1,5 mm de diamètr

23-01-2025 07:54

Tony Moverley

Hello,A recent foray in Norfolk, England found a g

26-01-2025 15:01

David Maw

Hello. i am looking forliterature that wil help to

26-01-2025 00:18

Robin Isaksson Robin Isaksson

Hi! Anyone know this one? Spores 14-18 x 4-4,5, 3

24-01-2025 19:39

Margot en Geert Vullings

We found these orange dics on horse dung.We think

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Geoglossum
Malcolm Greaves, 23-01-2025 15:46
Malcolm  GreavesCould I have peoples opinion on this Geoglossum.
With a dark head and paler brown squamulose stem it was looking like just a G fallax.
The paraphyses were very variable with some straight some curved some with a swollen apex and others with almost no swelling. 
The spores are the problem.  None that I could find had more than 7 septa and most had less than that. There were a lot that were the normal shape with a maximum length of 70 but the majority 50-60. There were also a large number of much shorter and fatter spores up to 8 wide.
Is this a deformed fallax or something more special.
Asci blued with KOH.
Thanks 
Mal
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Luc Lenaerts, 23-01-2025 18:37
Luc Lenaerts
Re : Geoglossum
Hello, with the apical dark pear- to spherical thickenings in the paraphyses and the other characteristics it corresponds possibly with Geoglossum vleugelianum.
Kind regards
Luc Lenaerts
Jean-Luc Ranger, 24-01-2025 18:17
Re : Geoglossum
Bonjour,Je ne sais pas quel est ce Geoglossum mais pas G.vleugelianum.
Voici ses paraphyses envellopées dans une masse brune.
Cordialement
Jean-Luc
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Malcolm Greaves, 25-01-2025 13:10
Malcolm  Greaves
Re : Geoglossum
Thanks both. I felt it was distinct enough to be something identifiable but it looks as though that is not the case. Jean-Luc are you saying that the paraphyses should be agglutinated for vleugelianum?
Mal
Luc Lenaerts, 27-01-2025 17:20
Luc Lenaerts
Re : Geoglossum
Hello,
What are the colours of the paraphyses in water?
Kind regards
Luc Lenaerts
Jean-Luc Ranger, 28-01-2025 10:27
Re : Geoglossum
Oui ma photo a été prise dans l'eau, voici 2 citations: SVENSK BOTANISK TIDSKRIFT. BD 61, H. 3. 1967.three new swedish species of geoglossum. BY NILS HAKELIER. However, the paraphyses of G. vleugelianum are shorter, less robust, darker, remotely septate and inspersed with amorphous brown matter.
La familia Geoglossaceae ss. str. en la península Ibérica y la Macaronesia Sabina arauzo & Placido Iglesias 2014

Esta recolecta coincide bastante bien con la descripción original de Nannfeldt, la forma de las paráfisis se ajusta perfectamente a la dibujada por el autor sueco. Sin embargo algunas dudas surgieron en la determinación ya que en el protólogo se menciona que las paráfisis están inmersas en materia amorfa marrón, mientras que en el material estudiado esta materia es muy tenue o ausente. Esto puede deberse a que en algunas especies la cantidad de materia amorfa entre las paráfisis puede aumentar con el proceso de herborización y posterior rehidratación o con la fase de maduración de los apotecios. Nannfeldt describe esta especie a partir de una antigua recolecta de herbario lo que podría explicar esta diferencia. Eckblad (1963) también describe la especie sin mencionar nada sobre materia amorfa e indicando paráfisis no adherentes.
Luc Lenaerts, 28-01-2025 12:10
Luc Lenaerts
Re : Geoglossum
Hello,
My question about the coloration of the paraphyses in water was actually meant for Malcolm. What is the color of the paraphyses in his specimens?
Brown amorphous mass between the paraphyses is present in almost all samples of Geoglossum to a greater or lesser extent.
I have examined 4 of the 5 specimens of the holotype of G.vleugelianum. The paraphyses in the specimens of the holotype are 6-10 µm wide at the apex. The color in water was grayish and can no longer be assessed in these old specimens. One of the five specimens was G. starbaeckii.
Kind regards
Luc Lenaerts
Malcolm Greaves, 28-01-2025 15:59
Malcolm  Greaves
Re : Geoglossum
Hello Luc
I have attached a photo of the paraphyses in water. They appear to be slightly coloured, grey rather than brown, and there is an amorphous material mixed in.
Mal
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