GENUL PIETROSIA A FOST REABILITAT

On a basis of morphological analyses of achenas, as well as the monopodial structure of the rhizome, there it is coming to the rhizome, there it is coming to the fore the fact that Sennikov has restored the genus Pietrosia. Unfortunately, all the previously nomenclatural combinations, including here also those made by Sennikov himself, are not accurately and it is necessary an improvement of it. In this paper, there are made also some comments over Pietrosia, as a particular genus.