Morphological analysis of the Grevillea ilicifolia complex (Proteaceae) and recognition of taxa

Abstract

A morphological study of herbarium and field-collected specimens, using phenetic techniques of agglomerative classification, ordination and minimum spanning trees, and covering the geographic range of the Holly Grevillea, G. ilicifolia (R.Br.) R.Br. sensu lato, has resulted in the recognition of three species and four subspecies. The taxa are based on leaf form, noted by previous authors to be highly variable between populations. The taxa recognised here are G. ilicifolia, G. ilicifolia subsp. ilicifolia (typical, kite-shaped leaf form), G. ilicifolia subsp. lobata (F.Muell.) T.L.Downing comb. et stat. nov. (oak-shaped leaf form), G. dilatata (R.Br.) T.L.Downing comb. et stat. nov. (fan-shap..