Origin of depicted specimens: Central Greece, Vardoussia Mt., Pittimaliko above Anastasios Diakos, between Stavros and upper lodge, 1800-1900m, limestone, site visited by Jan Schlauer and myself July 26, 1995. This is up to now the southernmost known site of P. balcanica. In difference of part of the plants of the Vitosha Mt. (Bulgaria) the leaves of the Vardoussia populations have no reddish pigmentation at all.