Hakea tamminensis, described by C.A. Gardner from Tammin, Western Australia, is synonymous with H. gibbosa (Sm.) Cav., a species from the Sydney region of New South Wales. Possible reasons for Gardner’s error are discussed.
A new series, Rigentes, of Eucalyptus (Myrtaceae) comprising three new species endemic to Western Australia
BROOKER, M.I.H. AND HOPPER, S.D., Nuytsia7 (1) :
A new taxonomic series, Rigentes, endemic to Western Australia is described. It comprises Eucalyptus rigens from north-west, north and north-east of Esperance, E. litorea from near Israelite Bay, both occurring around salt lakes, and E. famelica from east of Hopetoun, a species of subcoastal swamps. The series belongs in the informal Eucalyptus sect. Dumaria of Pryor & Johnson and is characterised by brown, somewhat flat to pyramidal seed, with the ventral side ribbed and dorsal side shallowly pitted.
New subspecies of Banksia seminuda and B. occidentalis (Proteaceae) from the south coast of Western Australia
Banksia seminuda subsp. remanens and B. occidentalis subsp. formosa are described and illustrated. Both have smaller leaves, are more floriferous and are smaller shrubs than their respective nominate subspecies. Both have outstanding horticultural merit. Their conservation in the wild will necessitate careful management, as both new subspecies may be killed by fire, and both have restricted geographical distributions. B. seminuda subsp. remanens and B. occidentalis subsp. formosa each have a distribution and morphological features suggesting that they are relictual taxa of Western Australian lineages that show the closest relationships to eastern Australian members of Banksia section Oncostylis.
Taxonomy of Olearia stuartii (Asteraceae : Astereae) and allied species
Western Australian specimens hitherto considered as Olearia stuartii (F. Muell.) F. Muell. ex Benth. are segregated into three distinct species. One of these is described as new, namely O. humilis Lander. Another represents O. xerophila (F. Muell.) F. Muell. ex Benth., previously known only from Queensland. O. stuartii is recognised as being a species widespread in inland Australia. A related species, O. gordonii Lander, is described from southern Queensland. These taxa all fall within Olearia sect Merismotriche Benth. within which they form a natural group.
Taplinia, a new genus of Asteraceae (Inuleae) from Western Australia
Taplinia Lander, a new genus, is described with a single species, T. saxalilis Lander, from Western Australia. It appears to belong to the tribe Inuleae subtribe Gnaphaliineae, although its affinities there are obscure.
Acacia veronica Maslin (Leguminosae : Mimosoideae), a new species of Acacia endemic in the Stirling Range, Western Australia
A new species of Acacia section Plurinerves, A. veronica Maslin, is described and illustrated. Although its precise taxonomic affinities are unclear it seems in some ways related to A. cyclops A. Cunn. ex Don. Acacia veronica is the only species of Acacia known to be endemic in the Stirling Range.
The new species Pimelea pelinos is named, described and illustrated. It is known only from a cluster of salt lakes near Scaddan in the south-west of Western Australia. A few printing errors that occurred in an earlier paper on the Thymelaeaceae are noted.
Wahlenbergia caryophylloides (Campanulaceae), a new species from northern Australia
A new species, Hibbertia hooglandii J.R. Wheeler, is described and illustrated. This species is endemic to the Kimberley Region. Its closest relative appears to be H. mulleri Benth. The tentative placement of the new species in H. section Hemistemma (Thouars) Benth. is discussed.
A revision of the genus Hyalosperma (Asteraceae : Inuleae : Gnaphaliinae)
Characters used in discriminating genera within the Gnaphaliinae are noted. The application of the name Helipterum is discussed. The recognition of Hyalosperma Steetz as an Australian endemic genus distinct from Helipterum is proposed. Nine species are recognised; eight new species combinations are made. Three species previously reduced to synonymy under Helipterum cotula (Benth.) DC. are reinstated.
Erymophyllum (Asteraceae : Inuleae : Gnaphaliinae), a new Australian genus in the Helipterum complex
The genus Erymophyllum is described; it contains five species, three of which are new; all except one are endemic to Western Australia. The two species previously recognised were included by Bentham (1867) in Helipterum sect Pteropogon (DC.) Benth.