Taxonomic resolution of infraspecific taxa in Lambertia orbifolia (Proteaceae) using molecular and morphological evidence.

The taxonomy of three informally-named, conservation-listed subspecies of Lambertia orbifolia C.A.Gardner was assessed using genotypic data generated from microsatellites in concert with morphological information. They were found to warrant formal taxonomic recognition and individualised conservation management. Lambertia orbifolia subsp. vespera A.D.Webb, L.Monks & Wege, an Endangered taxon from the Scott River Plains, and L. orbifolia subsp. pecuniosa A.D. Webb, L.Monks & Wege, a recently discovered and apparently rare taxon from south-west of Bowelling, are newly described and comparative data are provided for L. orbifolia subsp. orbifolia, a Critically Endangered taxon found near Narrikup. A revised description of L. orbifolia is also provided. [ABSTRACT FROM AUTHOR]