Accès membres

Mot de passe perdu? S'inscrire

17-11-2015 22:04

Malcolm  Greaves Malcolm Greaves

This new Geoglossum at first looked similar to the

28-11-2015 13:47

Gilbert MOYNE

Bonjour,Un ami m'a remis hier ce petit champignon

28-11-2015 10:48

ACAR ismail ACAR ismail

Hi all on branch of populus ascus 14-26 x 2-3,5

27-11-2015 12:25

Castillo Joseba Castillo Joseba

No se si se traba de una Mollisia ??SaludosJoseba

26-11-2015 21:27

Maren Kamke Maren Kamke

Hi Christian, hi everybodycould you help me with t

27-11-2015 15:04

Patrice TANCHAUD

Bonjour,récolte sur aiguilles de Cupressus au sol

25-11-2015 22:33

Björn Wergen Björn Wergen

Hi friends,I wonder if someone has this here:ARX J

21-11-2015 23:32

Elsa Sousa

if possible to get at least a genera, without micr

27-11-2015 10:40

Castillo Joseba Castillo Joseba

en caña (Arundo?)No he visto  AscasSaludosJoseba

27-11-2015 11:11

Garcia Susana

Hi:I found this small carbonaceous crust on hardwo

« < 866 867 868 869 870 > »
Geoglossum second try
Malcolm Greaves, 17-11-2015 22:04
Malcolm  GreavesThis new Geoglossum at first looked similar to the last one but the paraphyses were not only bent they were in some cases coiled. Could this be G umbratile or would it even pass for G barlae? The mature spores were mostly 7 septate and between 50-80 long.
Thanks again
Mal
  • message #38923
  • message #38923
  • message #38923
  • message #38923
DirkW, 17-11-2015 22:25
DirkW
Re : Geoglossum second try
salut mal,

i think this is typical barlae, with swollen, curled, hooked tips of paraphyses.

best

dirk
  • message #38924
Sabino Arauzo, 19-11-2015 23:34
Re : Geoglossum second try

Hi Malcolm:


is very difficult to give an opinion with only those data. Macroscopic characteristics? Asci reaction with IKI?


Dirk, your photography is a different species, perhaps G. cookeanum.


Regards.


Sabino.

DirkW, 19-11-2015 23:47
DirkW
Re : Geoglossum second try
hi sabino,

i dont think so. the paraphyses of cookeianum look like this: chain-like, often with a capitate apical cell!

best

dirk
  • message #38959
Malcolm Greaves, 20-11-2015 00:24
Malcolm  Greaves
Re : Geoglossum second try
I was looking at the paper by Priou and the comparison looked pretty good to me especially the last coiled paraphyse and this one.
Mal
  • message #38960
  • message #38960
Sabino Arauzo, 20-11-2015 18:19
Re : Geoglossum second try

Yes Dirk, but in the typical form, the parahyses of G. cookeanum can be highly variable. G. barlae ss. orig. = G. cookeanum, see Benkert.


Regards.


Sabino.

Malcolm Greaves, 20-11-2015 20:26
Malcolm  Greaves
Re : Geoglossum second try
The descriptions of the paraphyses of these two G "barlae" differ so much we must be talking about two different species.
Mal
Sabino Arauzo, 21-11-2015 13:12
Re : Geoglossum second try

Yes Malcolm, clearly. The interpretation of Priou (and most authors) is another species.


Sabino.

Malcolm Greaves, 21-11-2015 13:20
Malcolm  Greaves
Re : Geoglossum second try

Thanks Sabino


We will have to wait until all these species are included in a new key.


Mal

Jean-Paul Priou, 27-11-2015 21:24
Jean-Paul Priou
Re : Geoglossum second try
Hi all,
 my key 1992 is of course obsolete after the good job by Arauzo & Iglesias. In Errotari 2014.
When I look my plate, puff! I learned to draw after... then Zorro is arrived, pardon when Zotto is arrived
At this time, , the authors for exemple Nannfelt 1942, Maas-Geesteranus 1956 and Benkert 1976 give barlae with hooked- crozier-like paraphyses. But after 1996 Benkert  synonymises it with cookeanum, we need to give a new name for the specimen with such paraphyses.
In his key Sabino brings new features to separate Geoglossum species, IIK reaction and the extern cells shape of sterile part, nethertheless , with these characters, we are often "assis entre deux chaises " French lession !
JPP
Chris Johnson, 28-11-2015 09:49
Re : Geoglossum second try
Hi All

I see a lot of Geoglossum cookeanum with the paraphyses consistantly multi-septate, slight constriction at the septation, and often with capitate heads. The third cell from the apex is often elongated but I have never seen it distorted as depicted in some images of the perceived G. barlae.

Regards, Chris


  • message #39149
Malcolm Greaves, 28-11-2015 13:09
Malcolm  Greaves
Re : Geoglossum second try
Is the "Sabino" key available online?
Mal
Jean-Paul Priou, 28-11-2015 15:43
Jean-Paul Priou
Re : Geoglossum second try
Yes clearly cookeanum. look on sterile part you have the same cells on ectal part.
JPP