Dentaria quinquefolia forma pallidiflora (Cruciferae) – a new form from the North Caucasus

Abstract

A new form Dentaria quinquefolia f. pallidiflora Melamud is described from the North Caucasus. The new form differs from the type form in the white (when dry, pale pink) color of the petals. (In Dentaria quinquefolia f. quinquefolia the petals are violet or bright pink). The type material was collected in the spring of 2024 in the Mezmay Gorge (basin of the Kurdzhips River within the Lagonaki Highlands). A detailed description of the locus classicus is given, and information about finds of this form in other regions is provided. Analysis of the locations of the described form allows us to consider it a subendemic of the North Caucasus, sometimes irradiating into the adjacent regions of Ciscaucasia and Transcaucasia. Recommendations for herbarization of representatives of this species are given.