Contributions towards a revision of Daviesia Smith (Fabaceae: Mirbelieae). II.* The D. Latifolia group

Abstract

The Daviesia latifolia group, consisting of 16 species from eastern and southern Australia with horizontally flattened, non-pungent phyllodes, more or less united upper calyx-lobes and confluent anther-cells, is revised. Multivariate analysis (ordination and classification) of morphometric data is used to resolve the D. mimosoides/buxifolia species complex. As a result. one new species, D. elliptica, is segregated from D. buxifolia, and a new montane subspecies (acris) is recognised within D. mimosoides. Relationships of all taxa in the D. latifolia group are studied using cladistic analysis. A cline linking D. leptophylla with D. mimosoides through a hybrid zone is described from the Tinderry Mountains near Canberra. Daviesia elliptica, D. laevis, D. mimosoides subsp. acris, D. newbeyi, D. pauciflora and D. suaveolens are described as new, and D. mimosoides var. laifiora is raised to species rank. Twelve natural hybrids are briefly described.

* Part I, Aust . Syst . Bot., 1990, 3, 241–51.