A cladistic analysis of Boronia section Valvatae (Rutaceae)

A phylogenetic analysis, using 55 morphological and anatomical characters, of all 58 species of Boronia section Valvatae was completed. On the basis o f this analysis B. alata, B. algida and B. edwardsii are removed from secti on Valvatae and it is proposed that two new sections be erected to accommod ate them. Boronia section Valvatae s. str., apart from valvate and persiste nt petals, is defined by the of presence stellate hairs, valvate sepals and axillary inflorescences. An infrageneric classification, based on the clad ogram, of Boronia section Valvatae s. str. is proposed and includes four su bsections, nine series and five subseries. Of the four subsections, Ternata tae is endemic to the south-west of Australia, Bowmaniae to Cape York, and Grandisepalae to the 'Top End' of the Northern Territory (including north-w est Queensland) and the Kimberley Region. Subsection Valvatae is widespread but is predominantly found in the south-east of Australia.