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Volumes 1–14 are available for download via the Biodiversity Heritage Library’s (BHL) page for Nuytsia.
Displaying records 1–20 of 46.
Taxonomic research and the conservation status of flora in the Yilgarn Banded Iron Formation ranges
GIBSON, N., COATES, D.J. AND THIELE, K.R., Nuytsia 17: 1–12 (2007)
The Banded Iron Formation (BIF) ranges are small, ancient ranges scattered across the Yilgarn Craton in southern Western Australia. Increased exploration and mining of iron ore in Western Australia has resulted in a resurgence of botanical survey on and around the BIF ranges, including the discovery of at least 20 unnamed taxa, nine of which were new to science. Recent taxonomic work, published in this special edition of Nuytsia, has concentrated on naming 17 taxa with distributions centred on these ranges and a further 62 taxa of conservation significance in the southern half of Western Australia. Despite this increase in activity, the conservation status of the flora and vegetation remains poorly documented. Patterns in distribution of threatened, rare and poorly known taxa (Declared Rare Flora and Priority Flora) and patterns in endemism are examined on a subset of the 25 ranges most prospective for mining. Preliminary analysis of endemism supports the hypotheses that these ranges represent both refugial habitats of great antiquity and areas of recent speciation. Across Western Australia there are some 2,240 taxa under consideration for formal listing by the Department of Environment and Conservation as threatened; of these, 475 are yet to be formally named. This situation significantly impedes their conservation assessment.
Two newly described species and a draft key to the species of Sida s.lat. from Western Australia
BARKER, R.M., Nuytsia 17: 13–30 (2007)
There are a number of new native species of Sida listed in the Western Australian Herbarium’s FloraBase that have not yet been formally described. Of the 56 accepted species names presently listed, nearly half represent undescribed taxa. These are cited as either manuscript or phrase names. Two of the species, Sida ectogama W.R.Barker & R.M.Barker and Sida arsiniata R.M.Barker, previously known by phrase names, are here described and a draft key is provided for the native species of Sida found in Western Australia.
Corymbia cadophora subsp. polychroma (Myrtaceae): a new subspecies from the east Kimberley region of Western Australia
BARRETT, R.L., Nuytsia 17: 31–36 (2007)
A new subspecies of Corymbia cadophora K.D.Hill & L.A.S.Johnson is described from the east Kimberley region of Western Australia. The new subspecies, Corymbia cadophora subsp. polychroma R.L.Barrett, is only known from a single location where it grows on sandstone adjacent to a banded ironstone deposit on the western side of the Ragged Range. A key is provided to all three subspecies of C. cadophora.
New species of Lepidosperma (Cyperaceae) associated with banded ironstone in southern Western Australia
BARRETT, R.L., Nuytsia 17: 37–60 (2007)
Eight new species in the Australasian genus Lepidosperma Labill. are described from southern Western Australia. All of the taxa described here have restricted distributions in association with Banded Iron Formation (BIF) ranges and are potentially threatened by present or proposed mining activities. The following new species are described: L. amansiferrum R.L.Barrett, L. bungalbin R.L.Barrett, L. diurnum R.L.Barrett, L. ferricola R.L.Barrett, L. ferriculmen R.L.Barrett, L. gibsonii R.L.Barrett, L. jacksonense R.L.Barrett and L. lyonsii R.L.Barrett.
Lepidosperma gahnioides, a new species of Cyperaceae from the Ravensthorpe region, Western Australia
BARRETT, R.L., Nuytsia 17: 61–66 (2007)
Lepidosperma gahnioides R.L.Barrett is here described as a new species. This species has a restricted distribution from the Ravensthorpe Range north to Lake Ace, in southern Western Australia, and is potentially threatened by present and proposed mining activities.
Lasiopetalum ferraricollinum (Malvaceae s. lat.: Lasiopetaleae), a new species from the ironstone hills near Forrestania, Western Australia
BENNETT, ELEANOR M. AND SHEPHERD, K.A., Nuytsia 17: 67–72 (2007)
Lasiopetalum ferraricollinum E.M.Benn. & K.A.Sheph. is a new species restricted to a number of ironstone outcrops in the Coolgardie (COO) and Mallee (MAL) IBRA regions. This species, while morphologically allied to L. compactum Paust, is characterised by recurved leaf margins, white to cream flowers and the presence of both scattered stellate hairs and glandular hairs on the outside of the calyx. A description, distribution map, and images of the new species are provided.
Caladenia petrensis and C. saxicola (Orchidaceae), two new ironstone endemics from south-west Western Australia
BROWN, A.P. AND BROCKMAN, G., Nuytsia 17: 73–80 (2007)
Caladenia petrensis A.P.Br. & G.Brockman and C. saxicola A.P.Br. & G.Brockman are described and illustrated, their relationship with the closely related C. incensa Hopper & A.P.Br. is discussed and a key provided. Both species are placed in Caladenia R.Br. subg. Phlebochilus (Benth.) Hopper & A.P.Br. based on the flowers having long filamentous tepals and the labellum with two rows of broadly anvil-shaped, glossy calli.
Eremophila densifolia subsp. erecta and E. grandiflora (Myoporaceae), two new taxa from south-west Western Australia
BROWN, A.P. AND BUIRCHELL, B.J., Nuytsia 17: 81–86 (2007)
Eremophila densifolia F.Muell. subsp. erecta A.P.Br. & B.Buirchell and E. grandiflora A.P.Br. & B.Buirchell are described and illustrated, their relationships with closely related taxa are discussed and a key to the subspecies of E. densifolia provided.
Tetratheca erubescens (Elaeocarpaceae), a new and geographically restricted species from the Coolgardie Biogeographic Region of south-western Australia
BULL, J.P., Nuytsia 17: 87–96 (2007)
Tetratheca erubescens J.P.Bull, a rare species endemic to the remote and ironstone-rich Koolyanobbing Range, is described and photographically represented. To facilitate recognition, a table comparing relevant characters of morphologically and ecologically similar species of Tetratheca Sm. is provided.
Four new conservation-listed species of Synaphea (Proteaceae: Conospermineae) from the Jarrah Forest region of south-west Western Australia
BUTCHER, R., Nuytsia 17: 97–116 (2007)
The new species described here are a diverse assemblage of taxa, united in this paper by their geographical occurrence within the Jarrah Forest region of south-west Western Australia and a pressing need to formalise the description of conservation taxa in this State. The taxa have complex taxonomic associations within the groups to which they belong, with intergradation in many characters evident between species. The new species described herein are S. diabolica R.Butcher, S. pandurata R.Butcher, S. polypodioides R.Butcher and S. trinacriformis R.Butcher. A distribution map, image and discussion of affinities are provided for each taxon.
Tetratheca exasperata and T. phoenix (Elaeocarpaceae), two new conservation-listed species allied to T. setigera, from south-west Western Australia
BUTCHER, R., Nuytsia 17: 117–126 (2007)
The two new species described here are similar to Tetratheca setigera Endl. in having the upper part of the pedicel, the receptacle and the calyx segments densely ornamented with long, red, glandular setae. Tetratheca exasperata R.Butcher differs most readily from T. setigera in its almost glabrous leaves, with strongly revolute margins, and very short, patent stem hairs. This taxon has been infrequently collected from three areas in the Jarrah Forest and Avon Wheatbelt regions and has a Priority Three conservation listing. Tetratheca phoenix R.Butcher differs from T. setigera in its almost glabrous, but prominently tuberculate, stems and densely glandular-hairy ovary. This taxon is restricted to Mt Cooke, c. 70 km south-east of Perth and has a Priority Two conservation listing. These two new species are described and illustrated here, and their distributions are mapped.
Tetratheca pilata (Elaeocarpaceae), a new and apparently rare species from the Ongerup area of south-west Western Australia
BUTCHER, R., Nuytsia 17: 127–134 (2007)
Tetratheca pilata R.Butcher is described here as a new species and differentiated from similar taxa based on the prominent apical seta on its linear leaves and its more or less opposite-decussate phyllotaxis. Tetratheca pilata is an apparently rare, granite endemic from the Ongerup area and is listed as Priority One under the Department of Environment and Conservation’s Conservation Codes for Western Australian Flora. Images of this taxon and a distribution map are provided.
Persoonia manotricha (Proteaceae: Persoonioideae), a new species associated with Banded Iron Formation ranges in the Midwest region, Western Australia
BUTCHER, R. AND MARKEY, A.S., Nuytsia 17: 135–146 (2007)
The new species, Persoonia manotricha A.S.Markey & R.Butcher, is morphologically similar to P. bowgada P.H.Weston and P. hexagona P.H.Weston in its habit, in having six alternating grooves and ridges on its subterete, pungent leaves and in its floral structure. While its leaf morphology and anatomy closely ally P. manotricha with P. bowgada, the new species can be distinguished by its longer pedicels and by its flowers being less pubescent with a glabrous to sparsely pubescent ovary, similar to those of P. hexagona. Comparative leaf anatomy confirms that P. hexagona is distinctly different in having relatively broad longitudinal grooves in its leaves. The characteristic darkness of these broad grooves, in dried specimens, is not exclusively the result of the stomatal guard cells blackening, as previously thought, but also results from the greater visibility of the underlying mesophyll. Persoonia manotricha is commonly found on the lower, rocky slopes of Banded Iron Formation (BIF) ranges in tall Acacia dominated shrubland. A taxonomic description of the new species, including images and a distribution map, is provided. The new species is integrated into the most recently published key to Persoonia species.
Prostanthera ferricola (Lamiaceae), a new species from Western Australia
CONN, BARRY J. AND SHEPHERD, K.A., Nuytsia 17: 147–152 (2007)
Prostanthera ferricola B.J.Conn & K.A.Sheph., a distinctive new species endemic to ironstone and quartzite hills in the northern Yilgarn region of Western Australia, is described. This species is readily distinguished from P. centralis B.J.Conn and P. magnifica C.A.Gardner by its smaller leaves (5.5–10 mm long), purple-mauve adaxial surface of the calyx, a larger corolla (18–20 mm long) with hairs and glands on the outer surface, an absence of trichomes on the dorsal surface of the connective of the anthers and a longer pistil (20–21 mm long). Images of the holotype and field photographs of the habit and inflorescence are included along with a distribution map.
A new species of Petrophile (Proteaceae) from south-western Australia
CRANFIELD, R.J. AND MACFARLANE, T.D., Nuytsia 17: 153–158 (2007)
A new species, Petrophile vana Cranfield & T.Macfarlane, is described from the Murchison and Yalgoo Bioregions of Western Australia. The new species is known from only three localities where it grows on laterite breakaway ridges. It is illustrated and mapped, and comparisons are made with P. pauciflora Foreman from the same region.
Hakea chromatropa (Proteaceae: Grevilleoideae), an apparently rare new species from Western Australia
GEORGE, A.S. AND BARKER, R.M., Nuytsia 17: 159–164 (2007)
A new species from the agricultural region of Western Australia, Hakea chromatropa A.S.George & R.M.Barker, is described. It is closely related to H. ilicifolia R.Br.
Three new and geographically restricted species of Leucopogon (Ericaceae: Styphelioideae: Styphelieae) from south-west Western Australia
HISLOP, M. AND CHAPMAN, A.R., Nuytsia 17: 165–184 (2007)
Leucopogon borealis Hislop & A.R.Chapm., L. spectabilis Hislop & A.R.Chapm. and L. validus Hislop & A.R.Chapm. are described, illustrated and their distributions mapped. All have conservation coding. Five informal, subgeneric groups for Leucopogon R.Br. s. str. in Western Australia are delineated. A lectotype is also selected for Leucopogon apiculatus R.Br.
Diamond gum (Eucalyptus rhomboidea: Myrtaceae), a new threatened species endemic to the Bremer Range of the Southwest Australian Floristic Region
HOPPER, STEPHEN D. AND NICOLLE, D., Nuytsia 17: 185–194 (2007)
Eucalyptus rhomboidea Hopper & D.Nicolle, first collected by the late Ken Newbey in 1979, is described as new. The species is a member of Eucalyptus ser. Subulatae Blakely allied to E. transcontinentalis Maiden. It is confined to the Bremer Range, and it is at risk from present and proposed mining activities.
New species of Andersonia (Ericaceae) of conservation concern
LEMSON, K.L., Nuytsia 17: 195–214 (2007)
Six new species of Andersonia R.Br. – A. annelsii Lemson, A. ferricola Lemson, A. geniculata Lemson, A. redolens Lemson, A. hammersleyana Lemson and A. pinaster Lemson – are described, mapped and illustrated.
A new species of Neurachne (Poaceae) from Western Australia
MACFARLANE, T.D., Nuytsia 17: 215–222 (2007)
Neurachne annularis T.Macfarlane is described and illustrated with photographs and a distribution map. The new species forms Triodia-like hummocks and grows on and around banded ironstone ranges in the Yilgarn region of Western Australia where it is often dominant in the understorey. The species has the C₃ photosynthetic pathway and is diploid with n = 9, one of three species with that combination in a genus now of seven species. It is morphologically closest to N. tenuifolia S.T.Blake, from ranges in Central Australia.
