20-05-2026 20:08
Andreas Millinger
Good evening,another quite distinctive find from M
20-05-2026 21:49
Margot en Geert VullingsWe found this Lachnum on Juncus stems mown last ye
20-05-2026 17:47
Margot en Geert VullingsWe found this Mollisia on dead Juncus stems mown l
20-05-2026 12:57
Hello everybody, on decayed hardwood e.g. Quercus
22-04-2026 20:54
Hi to everybody.This Pyrenopeziza grew in moist le
19-05-2026 12:55
Hardware Tony
After checking Gminder and Otto's library I cannot
19-05-2026 10:27
Patrice TANCHAUDBonjour, récolte récente sur terre retournée i
Rutstroemia
Yannick Mourgues,
25-10-2009 01:18
Bonsoir.Voici un Rutstroemia trouvé sur branches de Bouleau au sol dans une tourbière.
Ce qui m'étonne, c'est la forme des spores, cylindriques quasiment jamais incurvées comme je pensais les trouver, peut-être à tort d'ailleurs.
La clé que j'ai m'amène à R. firma mais sans conviction toujours à cause de ces spores que je pensais incurvées chez cette espèce.
Micro :
Asques IKI+ bb, 140-160X8-12 um, boucles présentes.
Spores bisériées, cylindriques, 16,9-19,8X5,6-6,5 um avec deux guttules, Q=2,8-3,3
Paraphyses filiformes à apex arrondi, septées, larges de 2-3 um.
Qu'en pensez-vous ?
Merci par avance.
Yannick Mourgues
Hans-Otto Baral,
25-10-2009 07:51
Re:Rutstroemia
Hi Yannick
I know this straight-spored form and never understood if it is the same as the perhaps more often seen curved-spored R. firma. But I saw both forms on Quercus, see DVD, e.g.,Rutstroemia firma cf., 22.9.79.JPG and HB 5372.
Your twigs, are they really Betula? Did you look on the wood whether it is not ring-pored? On your photo I think this could be Quercus.
Zotto
I know this straight-spored form and never understood if it is the same as the perhaps more often seen curved-spored R. firma. But I saw both forms on Quercus, see DVD, e.g.,Rutstroemia firma cf., 22.9.79.JPG and HB 5372.
Your twigs, are they really Betula? Did you look on the wood whether it is not ring-pored? On your photo I think this could be Quercus.
Zotto
Yannick Mourgues,
25-10-2009 12:19
Re:Rutstroemia
Hi Zotto.
Twigs are certainly Betula. There were just Betula and Picea all around this peat bog. But I will see that.
Thank's a lot.
Yannick
Twigs are certainly Betula. There were just Betula and Picea all around this peat bog. But I will see that.
Thank's a lot.
Yannick


