Morphological variation and speciation in Stylidium graminifolium (Stylidiaceae), description of S. montanum and reinstatement of S-armeria

Abstract

Phenetic analyses of morphological variation within Stylidium graminifolium Sw. ex Willd. sens. lat. are presented. Plants collected from 65 localities throughout Victoria and southern New South Wales were scored for eight leaf and 11 floral characters. Flowers collected from a subset of these populations and preserved in ethanol were scored for 15 floral characters. Five forms were identified in the analyses with three species warranting taxonomic recognition. Stylidium graminifolium Sw. ex Willd. sens. str. has erect, glaucous, narrowly linear leaves up to 2.5 mm wide with regular, fine serrations along the leaf margin. This species has comparatively small, pale pink to white flowers with ..