14-08-2012 19:19
Alex AkulovDear FriendsCan you help me with identification of
08-08-2012 11:33
Alessio PierottiQualcuno è tanto gentile da aiutarmi a cercare qu
06-08-2012 12:18
Stefan BlaserDear allI'm looking for keys of Phaeosphaeria and
07-08-2012 12:07
Guy GarciaBonjour, C'est encore moi avec mes demandes biblio
27-07-2012 19:08
Piet BORMANSBonjour,Est-ce que cela pouvait être Seynesiella
So looking at it with another friend under a different microscope we tried additional stains. I measured the spores at 13.5 X 9. looking at several of them it appeared that they had spines on the spores that went into a slime layer that surrounded the spore. It also appeared that inside some of the spores there was a figure 8 or prehaps 2 oil drops or septa. Not certain. We also observed that some of the spores had protrusions on each end. There the book he had was the Fungi of Switzerland and there was a Aleuria that had similar looking spores but it looked different and also differed by having a stalk. Could not come up with any better ideas.
I will post spore photos shortly.
John
I think it's Aleuria aurantia
Il est difficile, à partir de vos photos, de pouvoir apprécier correctement l'ornementation sporale. Si l'ornementation est comme vous l'indiquez, formée d'épines, il ne s'agit alors pas de Aleuria aurantia.
Les Aleuria, contrairement aux Octospora, possèdent des poils hyphoïdes, inférieurs à 200 µm de long, sur l'excipulum. Les apothécies de A. aurantia peuvent être inférieures à 10 mm de diamètre.
La planche 99 de B&K illustre Sowerbyella reynana (Bull. :Fr.) J. Moravec, non une espèce du genre Aleuria.
En annexe une planche montrant les ascospores de A. aurantia.
Amicalement
René