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Nemania with spores with no germ slit
Enrique Rubio,
03-09-2012 17:09
Cher amis du Forum:Cette Nemania a des estromes jusqu'a 20 x 5 mm, avec des peritheces jusqu'a 600 microns de longitude. Les asques sont IKI et Melzer bleu et elles ont jusqu'a 167 x 7 avec la pars sporifera de 75-85 microns. Perithecial mounds inconspicuous and ostioles papillate.
Mais je ne ai pas été capable de voir aucun fente germinatif ni sur le material frais ni sur l'exsiccatum.
Je pense qu'elle peut etre du complex Memania serpens, peut etre Nemania serpens var. colliculosa.
Les estromes on eté recoltés sur Betula alba wood á 1600 m d'altitude.
Quel est votre opinion?
Merci en avancé
Enrique
Jacques Fournier,
03-09-2012 18:24
Re : Nemania with spores with no germ slit
Hola Enrique,
I think you are indeed dealing with N. colliculosa. The germ slit is a bit more conspicuous than in N. serpens but it is most often difficult to make out. Try to make a very thin slide mounted in 10% KOH and if you are fortunate you will get it.
Good luck!
Jacques
I think you are indeed dealing with N. colliculosa. The germ slit is a bit more conspicuous than in N. serpens but it is most often difficult to make out. Try to make a very thin slide mounted in 10% KOH and if you are fortunate you will get it.
Good luck!
Jacques
Enrique Rubio,
03-09-2012 18:34
Re : Nemania with spores with no germ slit
Thank you ,Jacques. I am not a man of luck because no results in KOH!
Is it Nemania colliculosa a good seggregate species actually?
Is it Nemania colliculosa a good seggregate species actually?
Jacques Fournier,
03-09-2012 18:41
Re : Nemania with spores with no germ slit
yes, according to Granmo, Laessoe & Schumacher, 1999, Sommerfeltia 27
Enrique Rubio,
03-09-2012 18:53
Re : Nemania with spores with no germ slit
Merci beaucoup, Jacques. Tu es toujour tres aimable avec moi
Alain GARDIENNET,
03-09-2012 21:59
Re : Nemania with spores with no germ slit
Bonsoir les amis,
Dis Jacques, je crois que tu m'avais soufflé (lors de ma première récolte sur Buxus) que coliculosa possède un stroma moins dur, moins "carbonacé" que le type serpens. Est-ce un critère fiable que Enrique peut vérifier ?
Alain
Dis Jacques, je crois que tu m'avais soufflé (lors de ma première récolte sur Buxus) que coliculosa possède un stroma moins dur, moins "carbonacé" que le type serpens. Est-ce un critère fiable que Enrique peut vérifier ?
Alain
Jacques Fournier,
04-09-2012 08:22
Re : Nemania with spores with no germ slit
as pointed out by Alain the stromata of N. colliculosa are indeed less carbonaceous than those of N. serpens but this is a matter of more or less, sometimes difficult to evaluate unless you have both species at hand for comparison. Maybe it will help Enrique....
Jacques
Jacques
Enrique Rubio,
04-09-2012 14:21
Re : Nemania with spores with no germ slit
Thank you to a both