Moehringia argenteria (Caryophyllaceae) a new species in the Maritime Alps (Italy).

A new species of Caryophyllaceae, Moehringia argenteria Casazza & Minuto, is described from the Argentera Massif in the Maritime Alps in Italy. Its morphology, distribution and habitat are given with reference to bioclimatic biogeographical and phytosociological aspects. The characteristics are also presented to enable comparison with most closely related species such asMoehringia sedoides (Pers. Loisel., Moehringia intermedia panizzi and Moehringia muscosa L. growing in neighbouring areas but showing different morphology and ecology.