Search
Volumes 1–14 are available for download via the Biodiversity Heritage Library’s (BHL) page for Nuytsia.
Displaying records 541–560 of 576.
Redefinition of Tephrosia supina (Fabaceae: Millettiae), a north-west Western Australian endemic, and description of two similar species
BUTCHER, R. AND COWIE, I.D., Nuytsia 32: 67–83 (2021)
The application of the name Tephrosia supina Domin is clarified herein, with this species determined as being a north-west Western Australian endemic subshrub with pink-purple flowers; T. supina s. str. is differentiated from two similar taxa, which also occur in the Northern Territory and Queensland. These are described herein as T. insolens R.Butcher & Cowie and T. lithosperma R.Butcher & Cowie, and T. supina is lectotypified. Full descriptions and images are provided for these three species and their histories and affinities are discussed.
Rubinoboletus phaseolisporus (Boletaceae) from Western Australia is a Tylopilus with bean-shaped spores
OSMUNDSON, T.W., BOUGHER, N.L., ROBINSON, R.M. AND HALLING, R.E., Nuytsia 32: 87–97 (2021)
The bolete genus name Rubinoboletus Pilát & Dermek has been misapplied in the past to include taxa belonging to several genera including Tylopilus P.Karst. In this study, we provide morphological and molecular phylogenetic justification for alignment of Rubinoboletus phaseolisporus T.H.Li, R.N.Hilton & Watling in Tylopilus with the North American taxon T. balloui (Peck) Singer. Thus, a new combination, Tylopilus phaseolisporus (T.H.Li, R.N.Hilton & Watling) Osmundson, Bougher, R.Rob. & Halling, is proposed for this brightly-coloured species that is apparently endemic to bushland in south-west Western Australia.
Tephrosia sabulosa (Fabaceae: Millettieae), a new species from Australia’s sandhill deserts
BUTCHER, R., Nuytsia 32: 109–119 (2021)
The new species described herein has been segregated from the complexes surrounding T. rosea Benth. and T. brachyodon Domin, both of which are extremely challenging taxonomically. Tephrosia sabulosa R.Butcher is distinctive; however, its relationship with the other members of these complexes is not yet known. It occurs in sandhill habitats on the crests and slopes of dunes and has a disjunct distribution in Australia, with all but one collection being made from the Simpson-Strzelecki Dunefields bioregion of the Northern Territory, South Australia and Queensland; nearly 900 km lies between these collections and that made from the Kiwirrkurra Indigenous Protected Area (Gibson Desert bioregion) in Western Australia. The new species is described and differentiated from similar taxa, and images and a distribution map are provided.
A revision of Lasiopetalum (Malvaceae: Byttnerioideae) from the northern sandplains of Western Australia, including two new species
SHEPHERD, K.A. AND WILKINS, C.F., Nuytsia 32: 121–149 (2021)
Taxonomic descriptions are provided for eight species of Lasiopetalum Sm. with a centre of diversity in the Geraldton Sandplains bioregion. Circumscriptions are updated for six species, namely L. angustifolium W.Fitzg., L. drummondii Benth., L. lineare Paust, L. ogilvieanum F.Muell., L. oldfieldii F.Muell., and L. oppositifolium F.Muell. Lectotypes are designated for L. angustifolium, L. ogilvieanum, L. oldfieldii, and L. oppositifolium, while the holotype for L. drummondii is clarified. In addition, two new species from the region are recognised and named here as L. biloculatum K.A.Sheph. & C.F.Wilkins and L. erectifolium K.A.Sheph. & C.F.Wilkins_._ Images and distribution maps are provided for all species.
Eucalyptus merleae (Myrtaceae), a new rare species endemic to Ravensthorpe Shire in south-west Australia
MCQUOID, N.K. AND FRENCH, M.E., Nuytsia 32: 151–158 (2021)
Eucalyptus merleae McQuoid & M.E.French, first collected by Ian Brooker in 1985, is described and illustrated. It is related to Eucalyptus astringens Maiden. The new species has a scattered distribution in the Ravensthorpe to Hopetoun area on the central south coast of Western Australia, is at risk from frequent fire, climate change and potential mining activity, and is in need of further survey and monitoring.
Austrobaeckea, a new south-western Australian genus of Myrtaceae (Chamelaucieae: Hysterobaeckeinae)
RYE, B.L., Nuytsia 32: 173–197 (2021)
The new Myrtaceous genus Austrobaeckea Rye is described, with eight species recognised. It is a member of tribe Chamelaucieae DC. subtribe Hysterobaeckeinae Rye & Peter G.Wilson and is restricted to the southern part of the South West Botanical Province of Western Australia. Three new species are named as A. columnaris Rye, A. fascifolia Rye and A. narembeen Rye, and the following new combinations are made: A. latens (C.R.P.Andrews) Rye, A. pygmaea (R.Br. ex Benth.) Rye, A. pachyphylla (Benth.) Rye, A. uncinella (Benth.) Rye and A. verrucosa (Turcz.) Rye. A lectotype is selected for A. uncinella. Three species have conservation priority.
New species of Western Australian Styphelia (Ericaceae: Epacridoideae: Styphelieae) from the S. pendula and S. conostephioides groups
HISLOP, M., Nuytsia 32: 199–238 (2021)
Eight new species and one new subspecies are described and illustrated. Six of these, S. caudata Hislop, S. globosa Hislop, S. graniticola Hislop, S. intermediana Hislop, S. intricata Hislop and S. madida Hislop belong to the S. pendula (R.Br.) Spreng. group (also known as Group V), and the other two, S. carolineae Hislop and S. exarata Hislop, are from the S. conostephioides (DC.) F.Muell. group (also known as Group VIII). Styphelia madida includes the subspecies hirtigera Hislop. A key is provided to species of the S. pendula group occurring in the south-west corner of Western Australia (i.e. west of a line between Perth and Albany), this being the main region of diversity for the group. Five of the new species have conservation coding.
Drummondita billyacatting (Rutaceae), a new, range-restricted species from Western Australia
SHELTON, L.R.J. AND THIELE, K.R., Nuytsia 33: 19–27 (2022)
The new species Drummondita billyacatting L.R.J.Shelton & K.R.Thiele is described for a taxon previously phrase-named as D. sp. Trayning (A.M. George 97), which is narrowly endemic to Billyacatting Hill in the Western Australian wheatbelt. The new species is morphologically readily separable from the widespread D. hassellii (F.Muell.) Paul G. Wilson and the morphologically rather similar D. longifolia (Paul G. Wilson) Paul G. Wilson. A key is provided to all species of Drummondita Harv. (Rutaceae).
Austrostipa (Poaceae) in Western Australia: new species, new records, keys, and character notes
WILLIAMS, A.R., Nuytsia 33: 39–101 (2022)
Austrostipa S.W.L.Jacobs & J.Everett is a monophyletic genus of temperate Australian native grasses that occur throughout the southern part of the continent and in New Zealand. Eight new species from Western Australia are described and illustrated here, plus two newly recorded species that are range extensions from their previously known habitats in South Australia, bringing the total number of species recorded in this state to forty-four. Detailed character notes and a key to the species and the accepted subgenera are provided. The new species are: A. anaiwaniorum A.R.Williams, A. burgessii A.R.Williams, A. everettiana A.R.Williams, A. frankliniae A.R.Williams, A. heteranthera A.R.Williams, A. koordana A.R.Williams, A. nunaginensis A.R.Williams and A. turbinata A.R.Williams. One former species (A. nullanulla J.Everett & S.W.L.Jacobs) has been reduced to synonymy with A. vickeryana J.Everett & S.W.L.Jacobs. The two species with range extensions are A. echinata (Vickery, S.W.L.Jacobs & J.Everett) S.W.L.Jacobs & J.Everett, which has been found at several sites around Esperance, and A. mundula (J.M.Black) S.W.L.Jacobs & J.Everett, which has been found in numerous small isolated coastal pockets around the south-west and up as far as Yanchep north of Perth. Five of the new species appear to be rare and isolated, including the newly discovered populations of A. echinata and A. mundula, and warrant conservation priority.
An expanded circumscription and revision of the Western Australian genus Balaustion (Myrtaceae: Chamelaucieae: Hysterobaeckeinae)
RYE, B.L., Nuytsia 33: 149–204 (2022)
Balaustion Hook. s. lat. comprises 18 species that are characterised by having a large cavity on the inner surface of their seeds. Other characters found in all or most of the species are a low growth form, sub-epidermal tissue on the young stems that disintegrates into fibres, one-flowered peduncles, scarcely keeled sepals, and very large, sessile placentas. The type species of Balaustion has a distinctive anther type and particularly large, colourful flowers adapted to bird-pollination, but white is the most common petal colour in the genus. New combinations are made for three species previously included in Baeckea L. s. lat.: Balaustion exsertum (S.Moore) Rye, B. grandibracteatum (E.Pritz.) Rye and B. grande (E.Pritz.) Rye. A neotype is selected for Baeckea grandibracteata E.Pritz. and lectotypes chosen for B. grandis E.Pritz. and the type species Balaustion pulcherrimum Hook. The new species and subspecies are B. baiocalyx Rye, B. bimucronatum Rye, B. filifolium Rye, B. grandibracteatum subsp. meridionale Rye, B. grandibracteatum subsp. juncturum Rye, B. hemisphaericum Rye, B. interruptum Rye, B. karroun Rye, B. mukinbudin Rye, B. multicaule Rye, B. polyandrum Rye, B. quinquelobum Rye, B. spenceri Rye, B. tangerinum Rye, B. thamnoides Rye and B. unguiculatum Rye. Most of these taxa are conservation-listed in Western Australia. Three sections are recognised: sect. Balaustion is monotypic, sect. Nonfibrosa Rye comprises three species with few ovules, and sect. Tilophloia Rye comprises 14 species characterised by stem tissue that tends to disintegrate into numerous fibres. One possible case of hybridisation between two of these sections is discussed.
Description of a new south-western Australian plant group, Hypocalymma sect. Grandiflora (Myrtaceae: Chamelaucieae: Astarteinae)
RYE, B.L., KEIGHERY, G.J. AND BARRETT, M.D., Nuytsia 33: 233–249 (2022)
A new section of Hypocalymma (Endl.) Endl., H. sect. Grandiflora Rye, Keighery & M.D.Barrett, is described. Like sect. Hypocalymma, the new section has seeds with a pitted testa, but it differs in having solitary axillary flowers with large petals greatly exceeding the length of the stamens. Its type species is H. puniceum C.A.Gardner and three of its five species are new: H. inopinatum Rye, Keighery & M.D.Barrett, H.magnificum Rye, Keighery & M.D.Barrett, and H. polyandrum Rye, Keighery & M.D.Barrett. Keys are given to the four sections of Hypocalymma and to the species of sect. Grandiflora. Four species have conservation priority.
Calytrix calingiri, a new species from the Calytrix acutifolia species group (Myrtaceae: Chamelaucieae)
NGE, F.J. AND THIELE, K.R., Nuytsia 33: 251–261 (2022)
A taxonomic assessment of Calytrix cravenii Nge & K.R.Thiele has shown that a distinct morphological variant that occurs near Calingiri in south-west Western Australia is best regarded as a distinct species. It is described here as Calytrix calingiri Nge & K.R.Thiele sp. nov.
A new species of Brachyachne (Poaceae: Chloridoideae: Cynodonteae) from semi-arid Northern Territory and Western Australia, and additional notes on the genus
ALBRECHT, D.E. AND MCLAY, T.G.B., Nuytsia 33: 263–274 (2022)
Brachyachne anisocarpa Albr. is described and illustrated, with notes on distribution, habitat and relationship with similar species. New distribution records of other Brachyachne (Benth.) Stapf species are provided, along with a key to Brachyachne species in Australia. The status of the genus is discussed based on an analysis of pre-existing and new molecular data.
A taxonomic review of the Styphelia tamminensis subgroup (Ericaceae: Epacridoideae: Styphelieae)
HISLOP, M. AND NGUYEN, H.K., Nuytsia 33: 275–320 (2022)
Within the heterogeneous Styphelia Sm. Group X, a distinctive Western Australian subgroup is recognised based on morphological and molecular data. A morphological synopsis of the subgroup is provided and the following 13 new species are described and illustrated: S. annulata Hislop, S. bracteolosa Hislop, S. echinulata Hislop, S. exilis Hislop, S. hyalina Hislop, S. incerta Hislop, S. pallens Hislop, S. papillosa Hislop, S. platyneura Hislop, S. recurva Hislop, S. roseola Hislop, S. scabrella Hislop and S. subglauca Hislop. Nine of the novel species are conservation-listed. A key to all 19 members of the subgroup is included.
Update to the taxonomy of Hypocalymma sect. Hypocalymma (Myrtaceae: Chamelaucieae), including hybrids and new species
KEIGHERY, G.J., RYE, B.L. AND TAUSS, C., Nuytsia 34: 21–60 (2023)
In updating the taxonomy of Hypocalymma (Endl.) Endl. sect. Hypocalymma (Myrtaceae: Chamelaucieae), the section is described, a key is provided to the species and hybrids, full descriptions given for 11 species (three of them new, one reinstated) and three hybrids (one newly named). Taxa needing further study are noted. Five species and two of the hybrids described here have conservation priority. Two new species are described from the H. xanthopetalum F.Muell. complex as H. lateriticola Keighery & Rye and H. quadrangulare Rye & Keighery. The circumscription of H. angustifolium (Endl.) Schauer is reduced with the reinstatement of H. suave Lindl. and the description of the new species H. balbakiae Tauss & Rye. A northern variant of H. balbakiae (previously known as H. angustifolium subsp. Hutt River) is considered to be insufficiently distinct to recognise formally as a subspecies. Evidence is presented that one previously named and two phrase-named taxa are hybrids. Two of the hybrids are known from more than one location and have been recorded in hybrid swarms: one between H. angustifolium and H. tetrapterum Turcz. is named as H. × proliferum Keighery & Rye, while the other, H. × linifolium Turcz., has the parent species H. angustifolium and H. lateriticola. The third hybrid is H. tenuatum × H. xanthopetalum. The description of H. jessicae Strid & Keighery is broadened to include a new variant that has mostly higher ovule and stamen numbers. Amendments are made to the stamen and ovule numbers recorded for H. sylvestre Strid & Keighery; this species has up to 200 stamens, which is the highest stamen number known for the tribe Chamelaucieae DC. A new fruit type that is indehiscent and somewhat winged, is recorded for the genus; it occurs only in H. serrulatum Strid & Keighery, which also has an unusual breeding system.
Four new species of Amanita sect. Roanokenses (Basidiomycota) from Western Australia
DAVISON, E.M., GIUSTINIANO, D., BARRETT, M.D. AND SYME, K., Nuytsia 34: 65–92 (2023)
Four species of Amanita Pers. are documented from Western Australia. Amanita brunneola E.M.Davison & Giustiniano is described from the Perth region. It is distinguished by its pale brown pileus, white universal veil, globose basal bulb, amyloid, cylindric spores and presence of clamp connections. Amanita cretaceaverruca E.M.Davison & Giustiniano is described from the Perth region and the southern jarrah forest. It is distinguished by its brown pileus, with a thick white warty universal veil, globose or ovoid basal bulb, amyloid, elongate spores and absence of clamp connections. Amanita mallee E.M.Davison, Giustiniano & M.D.Barrett is described from the Shire of Coolgardie. It is distinguished by its white pileus and universal veil, tapered basal bulb, amyloid, cylindric spores and abundant clamp connections. Amanita validiuscula E.M.Davison, Giustiniano & K.Syme is described from the wheatbelt and Yalgoo area. It is distinguished by its white pileus and universal veil, ivory lamellae, fusiform or tapered basal bulb, amyloid, ellipsoid spores and abundant clamp connections. Molecular analysis shows all these species are members of sect. Roanokenses. Amanita brunneola, A. cretaceaverruca and A. mallee form a clade with other species from Australia and New Zealand, which may indicate Gondwanan origin.
Amanita marinae (Basidiomycota), a new species from the mid-west region of Western Australia
DAVISON, E.M. AND GIUSTINIANO, D., Nuytsia 34: 111–123 (2023)
Amanita marinae E.M.Davison & Giustiniano from sect. Validae (Fr.) Quél. is described from Kwongan vegetation in the Lesueur Sandplain of the mid-west region of Western Australia. It is distinguished by a white to ivory pileus; white to pale vinaceous buff universal veil; a white, membranous, flaring partial veil; amyloid elongate spores; and absence of clamp connections. Its affinities with other members of sect. Validae are unclear as phylogenetic analyses of nuLSU and tef-1 sequences show affinities with northern hemisphere species, whilst comparison of ITS sequences shows affinities with an undescribed species from New Zealand. Variability in the ITS region between cloned haplotypes of A. marinae was less than 1% — comparable with haplotype divergence previously observed for other sect. Validae.
Taxonomic resolution of infraspecific taxa in Lambertia orbifolia (Proteaceae) using molecular and morphological evidence
WEGE, J.A., MONKS, L.T., WEBB, A.D., BINKS, R.M. AND COATES, D.J., Nuytsia 34: 125–137 (2023)
The taxonomy of three informally-named, conservation-listed subspecies of Lambertia orbifolia C.A.Gardner was assessed using genotypic data generated from microsatellites in concert with morphological information. They were found to warrant formal taxonomic recognition and individualised conservation management. Lambertia orbifolia subsp. vespera A.D.Webb, L.Monks & Wege, an Endangered taxon from the Scott River Plains, and L. orbifolia subsp. pecuniosa A.D.Webb, L.Monks & Wege, a recently discovered and apparently rare taxon from south-west of Bowelling, are newly described and comparative data are provided for L. orbifolia subsp. orbifolia, a Critically Endangered taxon found near Narrikup. A revised description of L. orbifolia is also provided.
The taxonomy of the Styphelia corynocarpa subgroup (Ericaceae: Epacridoideae: Styphelieae)
HISLOP, M., Nuytsia 34: 139–155 (2023)
A small subgroup within the heterogeneous Styphelia Sm. Group X is recognised based on morphological and molecular data. A morphological synopsis of, and key to, the subgroup are provided, and all four member species are described and illustrated. Three of the four species are described as new, S. anomala Hislop, S. cylindrica Hislop and S. planiconvexa Hislop, while S. corynocarpa (Sond.) F.Muell. is given an updated description. Styphelia anomala has Western Australian conservation listing as Priority Two.
Ferdinand Mueller in Western Australia in 1877, with notes on his later contributions to the Western Australian flora
DOWE, J.L., Nuytsia 34: 157–178 (2023)
Baron Ferdinand von Mueller, Australia’s most productive botanist of the mid–late nineteenth century, was especially enamoured with the flora of Western Australia, and wrote about its ‘marvellous exuberance’, ‘typic singularity’ and ‘endemism’. He botanised in Western Australia on three occasions: in 1856 in the Sturt Creek area during Augustus Gregory’s North Australian Exploring Expedition; in 1867 in the Porongurup Range and Stirling Range and around Albany; and in 1877 with excursions from Champion Bay to Shark Bay and from Perth to Albany. Although he considered that most of Australia’s plant taxa had been described by the late 1870s, he remained attentive for novelties, especially those that were rare or from remote, under-botanised areas, especially in Western Australia. Many of Mueller’s later publications consolidated aspects of nomenclature, systematics, biogeography, economics, horticulture and utilisation of the flora of Western Australia.
