Accepted name

Rhizocarpetalia Klement 1949 nom. conserv. propos.

EuroVegChecklist name (Mucina et al. 2016)

Rhizocarpetalia Klement 1949 nom. conserv. propos.

Remarks

EuroVegChecklist

rhi01 | The name Physcietalia was used in Šmarda (1947) to accommodate the highly nitrophilous Xanthorion parietinae Ochsner ex Šmarda 1947 (nom. inval; ICPN art. 3d) and the non-nitrophilous Parmelion conspersae Hadač in Šmarda 1947. Because the 'Xanthorion parietinae Ochsner ex Šmarda 1947' is invalidly published, the 'Parmelion conspersae Hadač in Šmarda 1947' is the nomenclatural type of the 'Physcietalia Šmarda 1947'. As the only Physcia species in the original diagnosis of the order is P. sciastra, the name can be completed with the taxon epithet to Physcietalia sciastrae Šmarda 1947 (ICPN Rec. 10C). Physcia is a genus of highly nitrophilous species and applying the name Physcietalia sciastrae for non-nitrophilous lichen vegetation would become a source of misunderstanding (nomen ambiguum; ICPN art. 36) and therefore we suggest the rejection of the name Physcietalia sciastrae Hadač in Šmarda 1947 in favour of a well established name. The name Rhizocarpetalia Klement 1950 is indeed well established, however it is a younger homonym of the Rhizocarpetalia Klement 1949, that we propose to conserve. The lectotypus hoc loco of the Rhizocarpetalia Klement 1949 is the Acarosporion fuscatae Klement 1949 in Klement (1949: 12). (H. Bültmann).

Synonyms

• Aspicilietalia gibbosae Wirth 1972 (syntax.syn.)
• Physcietalia caesiae Mattick 1951 p.p. (2b)
• Physcietalia sciastrae Hadač in Šmarda 1947 nom. rejic. propos.
• Rhizocarpetalia geographici Klement 1950 (Rec.10C, 30) – rhi02 Klement (1950) described the order without a taxon epithet. Although more than two Rhizocarpon species occur in the original diagnosis, the use of the taxon epithet 'geographicum' of the most common and typically occurring species became established in the licheno-sociological literature. This is, however, at variance with the requirements of the ICPN (Art. 10c). (H. Bültmann).
• Rhizocarpetalia Klement 1950 (31)
• Umbilicarietalia velleae Creveld 1981 (syntax.syn.)