In this revision of the southern Australian genus Calectasia R. Br., eleven species are recognized. Calectasia browneana Keighery, K.W. Dixon & R.L. Barrett, C. gracilis Keighery. C. hispida R.L. Barrett & K.W. Dixon, C. keigheryi R.L. Barrett & K.W. Dixon, C. narragara R.L. Barrett & K.W. Dixon, C. obtusa R.L. Barrett & K.W. Dixon, C. palustris R.L. Barrett & K.W. Dixon, and C. pignattiana K.W. Dixon & R.L. Barrett, are described as new species from the south-west of Western Australia. A lectotype is selected for C. grandiflora Preiss and notes are made on the lectotype of C. cyanea R. Br. Keys, illustrations and distribution maps are provided for all taxa. Notes are made on the conservation status and ecology of the genus.
Sphaerolobium benetectum (Leguminosae: Mirbelieae), a new species from south-west Western Australia
A new species of Sphaerolobium Sm. that has been collected from three widely spaced locations in the extreme south-west of Western Australia is described and illustrated. Sphaerolobium benetectum R. Butcher is one of a group of species possessing a distinctly black-spotted calyx and is most closely related to S. drummondii Turcz. and S. validum R. Butcher ms. A key to the members of this group is provided.
Ficus lilliputiana (Moraceae), a new species from the Kimberley region of Western Australia and the Northern Territory
Ficus lilliputiana D.J. Dixon, a new species in subgenus Urostigma sect. Malvanthera Corner is described from the East Gardiner District of Western Australia and the Victoria River District of the Northern Territory. This lithophytic species is restricted to the sandstone escarpments around Kununurra and the Keep River National Park. Ficus lilliputiana is distinct, being the smallest taxon in the section and the only one to have a prostrate habit. Two forms are recognized, F. lilliputiana f. lilliputiana and F. lilliputiana f. pilosa D.J. Dixon, and are differentiated on the basis of the presence or absence of an indumentum. A key to the forms and notes on distribution, ecology, reproduction, conservation status and etymology are provided.
Verticordia mirabilis (Myrtaceae: Chamelaucieae), a striking new species from the Gibson Desert, Western Australia
GEORGE, E.A. AND GEORGE, A.S., Nuytsia13 (3): 465–469 (2001)
Verticordia mirabilis Elizabeth A. George & A.S. George (sect. Integripetala A.S. George) is described and illustrated. Known from a single locality, it has conservation priority. Together with V. jamiesonii F. Muell., which was collected at the same locality, it represents the first record of the genus for the central Australian deserts.
A new subspecies of Isotropis cuneifolia (Fabaceae)
Isotropis cuneifolia subspecies glabra Keighery is described and illustrated. The subspecies is considered endangered, being confined to a small area around Gingin on the Swan Coastal Plain, Western Australia.
A new species of Chamaescilla (Anthericaceae) from Western Australia
The genus Chamaescilla F. Muell. ex Benth. is currently considered to consist of four species, and a key to these taxa is provided. Chamaescillaversicolor (Lindl.) Ostenf. is reinstated and the new species Chamaescilla gibsonii Keighery is described.
Taxonomic notes on the genus Johnsonia (Anthericaceae)
A new subspecies, Johnsonia pubescens subsp. cygnorum Keighery, is described from the Swan Coastal Plain, in south-western Australia. New populations are listed for Johnsonia inconspicua Keighery, including one very disjunct population with a distinct variant; this species was previously known only from the type collection.
Acacia stellaticeps (Fabaceae: Mimosoideae), a new species from the Pilbara, Western Australia, to Tanami, Northern Territory
KODELA, P.G.,TINDALE, MARY D. AND KEITH, D.A., Nuytsia13 (3): 483–486 (2001)
Acacia stellaticeps Kodela, Tindale & D. Keith, a new species of Acacia section Plurinerves (Benth.) Maiden & Betche from Western Australia and the Northern Territory, is described and illustrated.
Notes on Eucalyptus series Orbifoliae (Myrtaceae) including a new species from central Australia
A key and distribution map for all taxa of Eucalyptus ser. Orbifoliae Brooker & Hopper are provided. Eucalyptus minniritchi Nicolle is described to accommodate populations of mallees in central Australia previously referred to as E. orbifolia F. Muell. or E. websteriana Maiden and related to both. The new species differs from E. orbifolia in the smaller buds with a short hemispherical operculum, the smaller and narrower adult leaves and the generally smaller, hemispherical fruits and differs from E. websteriana in the consistently and strongly pruinose adult parts and generally coarser leaves, peduncles, pedicels, buds and fruits. E. lata L.A.S. Johnson & K.D. Hill, a species recently described to accommodate what is here recognized to be typical E. orbifolia, is synonymised with that earlier named species. The status of E. educta L.A.S. Johnson & K.D. Hill and its relationship to E. orbifolia is discussed.