Nitrophilous and sub-nitrophilous lichen communities on bark of trees and occasionally on rocks
Physcietalia Hadač in Klika et Hadač 1944
Physcietalia Hadač in Klika et Hadač 1944
phy02 | The original diagnosis of the order 'Physcietalia Hadač in Klika et Hadač 1944' includes besides epiphytic communities also saxicolous syntaxa now transferred to the Rhizocarpetea geographici Wirth 1972. Drehwald (1993) typified the order with the epiphytic Xanthorion parietinae Ochsner 1928 and the order in current use is applied for corticolous communities. The name is established with the taxon epithet of Physcia adscendens. (H. Bültmann).