Volume 29
Issue Date: 13 December 2018
Permalink: https://doi.org/10.58828/niss00098
A key to Ptilotus (Amaranthaceae) in Western Australia
HAMMER, T.A., DAVIS, R.W. AND THIELE, K.R., Nuytsia 29: 217–227 (2018)
Cyanthillium gracilis, a new combination for the Western Australian endemic Pleurocarpaea gracilis (Asteraceae: Vernonieae)
THIELE, K.R. AND SCHILLING, E.E., Nuytsia 29: 229–232 (2018)
Hydrocotyle eichleri, H. papilionella and H. tuberculata (Araliaceae), three new annual species from Western Australia
PERKINS, A.J., Nuytsia 29: 233–243 (2018)
Livistona leichhardtii is the correct name for Livistona lorophylla (Arecaceae)
DOWE, J.L., Nuytsia 29: 245–250 (2018)
Making it official—formal description of two orange-flowered Tephrosia (Fabaceae: Millettieae) species from north-west Western Australia
BUTCHER, R., Nuytsia 29: 251–267 (2018)
Two long-standing manuscript names in Tephrosia Pers. are herein formalised as T. densa (Benth.) Pedley ex R.Butcher and T. gardneri Pedley ex R.Butcher, and their various informal names synonymised. Full descriptions and images are provided for both these north-west Western Australian species and their histories and affinities are discussed.
Placement of three names in Cyathostemon, Hysterobaeckea and Oxymyrrhine (Myrtaceae: Chamelaucieae)
RYE, B.L., Nuytsia 29: 269–270 (2018)
Triodia pisoliticola (Poaceae), a new species from the Pilbara region, Western Australia, and a description for T. sp. Mt Ella (M.E. Trudgen MET 12739)
BARRETT, M.D. AND TRUDGEN, MALCOLM E., Nuytsia 29: 271–281 (2018)
The genus Triodia R.Br. is currently undergoing taxonomic revision in the light of intensive botanical survey in remote Australia and molecular phylogenetic data. Several Triodia species have been known by phrase names in Western Australia for about 20 years. This paper deals with two of these names, Triodia sp. Mt Ella (M.E. Trudgen 12739) and T. sp. Robe River (M.E. Trudgen et al. MET 12367), that were first recognised as distinct taxa by one of us. Both species are ‘soft’ spinifexes with awned lemmas, and are known only from the Pilbara region in Western Australia. Triodia sp. Robe River is formally described as T. pisoliticola Trudgen & M.D.Barrett. This species is restricted to the western part of the Pilbara bioregion and has flowers morphologically similar to T. melvillei (C.E.Hubb.) Lazarides. Triodia sp. Mt Ella has floral parts morphologically similar to T. bitextura Lazarides; a full description of this entity is given, but it is not formally named pending further revision of the T. bitextura complex across northern Australia. Both taxa are currently given a conservation ranking of Priority Three. Both taxa are illustrated, and diagnostic character combinations are given to allow discrimination from all other Pilbara Triodia species.
