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Volumes 1–14 are available for download via the Biodiversity Heritage Library’s (BHL) page for Nuytsia.
Displaying records 521–540 of 576.
By their fruit you will recognise them: species notes and typifications in Western Australian species of Opercularia (Rubiaceae: Anthosperminae)
MARKEY, A.S., Nuytsia 29: 119–140 (2018)
An examination of herbarium collections, type material and reference to original species descriptions has found that several species names of Opercularia Gaertn. have been misapplied in Western Australia. This nomenclatural confusion stems from a combination of missing types, a lack of reference to either types or correctly identified specimens, and no recent revisions of the genus. Previously presumed to be extinct, O. acolytantha Diels is neotypified and discussed here as an extant species endemic to the Mallee and Esperance bioregions of Western Australia. Opercularia hirsuta Benth. is found to be a far rarer species than previously thought, with no material matching the type collected since the 1860s. Opercularia nubicola A.S.Markey is described as a new species with affinities to O. aspera Gaertn. Opercularia rubioides Juss. is reduced to synonymy with O. aspera,which is excluded from Western Australia. Opercularia scabrida Schltdl. is also excluded from Western Australia. This paper provides updated notes, illustrations and a key to Western Australian species of Opercularia. Characteristics of the infructescence, fruits and seed are diagnostic for these species and are illustrated here for this purpose.
A taxonomic revision of species with a petaloid epicalyx bract allied to Lasiopetalum bracteatum (Malvaceae: Byttnerioideae)
SHEPHERD, K.A. AND WILKINS, C.F., Nuytsia 29: 161–179 (2018)
This treatment focuses on an informal group of six species where Lasiopetalum bracteatum (Endl.) Benth., L. membranaceum (Steud.) Benth. and L. molle Benth. are revised and lectotypified, an updated description of the Threatened species L. rotundifolium Paust is provided, and two new related species of conservation concern, L. decoratum K.A.Sheph. & C.F.Wilkins and L. rupicola K.A.Sheph. & C.F.Wilkins, are described. Images and distribution maps are included.
Typification of Lasiopetalum and an interim key to the Western Australian species of the genus (Malvaceae: Byttnerioideae)
SHEPHERD, K.A. AND WILKINS, C.F., Nuytsia 29: 181–192 (2018)
Lasiopetalum ferrugineum Sm. is lectotypified and selected as the type for Lasiopetalum Sm. Notes on the variation within L. rosmarinifolium (Turcz.) Benth. are provided, with L. rosmarinifolium var. latifolium (Turcz.) Benth. and L. sp. Kukerin (C.A. Gardner 13646) treated as synonyms. A preliminary key to the species of Western Australian Lasiopetalum is also presented.
Three new perennial species of Calandrinia (Montiaceae) from southern Western Australia
OBBENS, F.J., Nuytsia 29: 193–204 (2018)
Three new species of Calandrinia Kunth. sect. Pseudodianthoideae Poelln. from Western Australia (C. quartzitica Obbens, C. lefroyensis Obbens and C. wilsonii Obbens) are described and illustrated. All occur in the south-west, where there is only one other perennial species known to date.
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.
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.
An update to the taxonomy of the Western Australian genera of the Myrtaceae tribe Chamelaucieae. 6. Scholtzia
RYE, B.L., Nuytsia 30: 33–86 (2019)
Twenty five new species and five new subspecies of Scholtzia are described: S. bellairsiorum Rye, S. brevistylis Rye, S. brevistylis subsp. prowaka Rye, S. calcicola Rye, S. chapmanii Trudgen ex Rye, S. cordata Trudgen ex Rye, S. corrugata Rye, S. denticulata Rye, S. halophila Rye, S. halophila subsp. meridionalis Rye, S. halophila subsp. mortlockensis Rye, S. inaequalis Rye, S. laciniata Rye, S. longipedata Rye, S. longipedata subsp. procera Rye, S. multiflora Rye, S. oleosa Rye, S. peltigera Rye, S. pentamera Rye, S. pentamera subsp. collina Rye, S. prostrata Rye, S. quindecim Rye, S. recurva Rye, S. subsessilis Rye, S. tenuissima Rye, S. thinicola Rye, S. trilocularis Rye, S. truncata Rye, S. uniflora Rye and S. uniovulata Rye. Scholtzia sp. Shark Bay (M.E. Trudgen 7429) is reduced to synonymy under S. capitata Benth. and most of the other phrase names in the genus are treated as synonyms of the above new taxa. A key is given to aid the identification of approximately 40 species and subspecies. Most taxa have conservation priority.
A revision of the tiurndins (Tribonanthes, Haemodoraceae)
HICKMAN, E.J., Nuytsia 30: 87–154 (2019)
The tiurndins (Tribonanthes Endl.) comprise a small taxonomically challenging genus of geophytes endemic to the Southwest Australian Floristic Region. Six named and one undescribed species of Tribonanthes are recognised in recent literature. Tribonanthes poses the most difficult taxonomic problems remaining for the Haemodoraceae in Western Australia. It is a genus where herbarium studies alone are insufficient to delineate taxa. A knowledge of variation in wild living material has proved essential to resolve taxonomic difficulties in the tiurndins. This revision recognises and comprehensively illustrates living plants of the 12 recognised species, four of which are new (T. elongata E.J.Hickman & Hopper, T. keigheryi E.J.Hickman & Hopper, T. monantha E.J.Hickman & Hopper and T. porphyrea E.J.Hickman & Hopper). Tribonanthes variabilis Lindl. and T. uniflora Lindl. are reinstated. Morphological and molecular data also support the recognition of three new subgenera: subg. Tribonanthes, subg. Salina E.J.Hickman & Hopper and subg. Boya E.J.Hickman & Hopper. Botanical illustration, especially of internal floral morphology, has revealed several previously unrecorded characters that help diagnose the species of Tribonanthes.
A taxonomic review of the Styphelia xerophylla group (Ericaceae: Epacridoideae: Styphelieae)
HISLOP, M. AND PUENTE-LELIÈVRE, C., Nuytsia 30: 155–175 (2019)
Species belonging to the Western Australian S. xerophylla (DC.) F.Muell. group (or Group IX) are described and illustrated. The treatment includes two species published in the nineteenth century, S. xerophylla and S. stomarrhena (Sond.) Sleumer, together with four new species, S. angustiflora Hislop & Puente-Lel., S. cernua Hislop & Puente-Lel., S. disjuncta Hislop & Puente-Lel. and S. sulcata Hislop & Puente-Lel. A seventh member of the group, S. longissima Hislop & Puente-Lel., was described in a recent paper and is not treated again here. The morphological attributes of the group are outlined and a key to species provided.
Elionurus tylophorus (Poaceae: Paniceae: Andropogoneae), a new species from the Kimberley region of Western Australia
BARRETT, M.D. AND HANDASYDE, T., Nuytsia 30: 177–194 (2019)
A new annual species, Elionurus tylophorus M.D.Barrett & T.Handasyde is described in the genus Elionurus Willd. of the grass tribe Andropogoneae. It differs from all previously described Elionurus species in having keels of the lower fertile glumes ornamented with projections, these often terminated by minute solitary bristles, rather than regular cilia lacking projections, or with projections terminated by hair-tufts in other species. It differs further from E. citreus (R.Br.) Benth. and E. purpureus E.J.Thomps., the only other Australian Elionurus, in having strongly developed fertile glume nerves, rachilla longer and lacking a wing, and presence of lemmas and anthers in the pedicellate spikelet. Elionurus tylophorus is currently known from a single location in the King Leopold Ranges in the central Kimberley region, and has conservation significance. A primary division of Elionurus into two clades is hypothesised based on a preliminary chloroplast gene phylogeny and two morphological synapomorphies, presence of tufted glume hairs and oil streaks.
Two new Western Australian species segregated from Banksia densa (Proteaceae)
THIELE, K.R., Nuytsia 30: 203–214 (2019)
Banksia densa A.R.Mast & K.R.Thiele has until now been regarded as a widespread species in the Western Australian wheatbelt, comprising a widespread nominate variety and a geographically more restricted variety in the southern part of its range (var. parva (A.S.George) A.R.Mast & K.R.Thiele). An informally recognised morphological variant, which matches the type of the species, is geographically restricted to an area on the edge of the species range in the immediate vicinity of Corrigin. Morphological assessment shows that the Corrigin form differs significantly in leaf morphology from the remainder of the species and comprises the true B. densa. The widespread taxon previously referred to as B. densa var. densa, and the southern var. parva, are here raised to species rank as B. zygocephala K.R.Thiele sp. nov. and B. parva (A.S.George) K.R.Thiele comb. et stat. nov. respectively.
Additions to Eremophila (Scrophulariaceae)
CHINNOCK, R.J., Nuytsia 30: 215–219 (2019)
One new species of Eremophila R.Br., E. waitii Chinnock, is described and one subspecies of E. glabra (R.Br.) Ostenf., E.glabra subsp. verrucosa Chinnock, is raised to species level and recognised herein as E. viridissima Chinnock.
Triodia veniciae (Poaceae), a new species from the Pilbara region, Western Australia
BARRETT, M.D., Nuytsia 30: 221–228 (2019)
The Australian hummock grass genus Triodia R.Br. is currently undergoing taxonomic revision following increased botanical survey in remote Australia. This paper describes a recently discovered species ‘soft’ Triodia from the Pilbara region, T. veniciae M.D.Barrett. The lemma lobes of the new species are narrow and produced into a short awnlet, intermediate between the old, and now united, generic concepts of Plectrachne Henrard with awned lemmas and Triodia with lobed lemmas. Triodia veniciae M.D.Barrett is only known from rocky shale slopes of the eastern Chichester Range, and has priority conservation status. Diagnostic character combinations for T. veniciae are given to allow discrimination from all other Triodia.
Calandrinia monosperma and C. uncinella (Montiaceae), two new indehiscent species from Western Australia
OBBENS, F.J., Nuytsia 30: 237–245 (2019)
Two unique indehiscent species of Calandrinia Kunth. from Western Australia are described and mapped and their affinities are discussed with regards to a recent phylogeny for Australian Calandrinia.
Nomenclatural updates and a new species of annual Hydrocotyle (Araliaceae) from Western Australia
PERKINS, A.J., Nuytsia 30: 253–277 (2019)
This treatment deals with five annual Western Australian species of Hydrocotyle L. and is based on the outcomes of a recent molecular phylogenetic study combined with a re-evaluation of schizocarp morphology. Hydrocotyle perplexa A.J.Perkins is newly named, H. intertexta R.Br ex A.Rich. is reinstated, and the three other species covered are H. glochidiata Benth., H. scutellifera Benth. and H. tetragonocarpa Bunge. Three taxa are placed in synonymy: H. blepharocarpa F.Muell. under H. scutellifera, H. pilifera Turcz. under H. intertexta and H. hispidula var. tenella Benth. under H. perplexa. Lectotypes are selected for five of these names, and full descriptions, distribution maps and images are provided for all five species. Details of the history of recognition of these species, and a series of misapplications of names, are also given.
Update on generic and specific nomenclature in Paracaleana (Drakaeinae), Caladeniinae and a new name in Caladenia (Orchidaceae)
HOPPER, STEPHEN D. AND BROWN, A.P., Nuytsia 30: 279–285 (2019)
Accepting guidance on stability of names from the Preamble to successive International Codes of Botanical Nomenclature, and in the interests of minimizing name changes consistent with present scientific evidence, we propose that the Australian orchid genus Paracaleana should be maintained as a distinct genus from Caleana, and that Caladenia remains best recognised as distinct from Cyanicula, Ericksonella, Pheladenia, Glossodia and Elythranthera. Recent proposals to lump these genera unnecessarily creates new names in the absence of compelling new scientific evidence to do so. A new name, Caladenia varians Hopper & A.P.Br., is erected to replace C. vulgata Hopper & A.P.Br. The type of C. vulgata matches Caladenia incensum Hopper & A.P.Br., and the former species is therefore rendered synonymous with the latter.
The Hibbertia polystachya–H. spicata (Dilleniaceae) species group in Western Australia
THIELE, K.R., Nuytsia 30: 291–308 (2019)
Hibbertia spicata F.Muell. and H. polystachya Benth. are widespread in south-western Western Australia, where they are unique in Hibbertia Andrews in having flowers in a cincinnus rather than solitary. The boundary between these two species has been problematic, as they mostly differ in the composition and density of indumentum on their sepals and leaves. Close study has revealed that H. polystachya is widespread and taxonomically relatively straightforward, while H. spicata sens. lat. comprises six distinctive, readily resolvable species (including H. leptotheca (J.R.Wheeler) K.R.Thiele comb. et stat. nov., previously H. spicata subsp. leptotheca J.R.Wheeler) differing in leaf and sepal indumentum, number of flowers in the cincinnus, floral bract shapes, stamen number, and number and arrangement of staminodes. New species described here are H. capensis K.R.Thiele sp. nov., H. asterella K.R.Thiele sp. nov. and H. subglabra K.R.Thiele sp. nov. The new name H. prolata K.R.Thiele is provided for a widespread taxon based on Hemistephus linearis J.Drumm. ex Harv. With these species removed, H. spicata is recircumscribed and is now more restricted in distribution.
A new name, clarification of synonymy, and a new subspecies for Isopogon (Proteaceae) in Western Australia
RYE, B.L. AND MACFARLANE, T.D., Nuytsia 30: 309–316 (2019)
Isopogon drummondii Benth. nom. illeg. is lectotypified and replaced by the new name I. autumnalis Rye & T.Macfarlane while I. drummondii Hügel ex Jacques is recognised as a probable synonym of I. sphaerocephalus Lindl. The new subspecies I. sphaerocephalus subsp. lesueurensis Rye is described.
Circumscription of Chamelaucium (Myrtaceae: Chamelaucieae), with validation of six species names and two new combinations
MARCHANT, N.G., Nuytsia 30: 317–334 (2019)
An updated description of the genus Chamelaucium Desf. compiled from all currently recognised formal and informal taxa is presented to establish the status of Chamelaucium at generic level within the Myrtaceae, tribe Chamelaucieae. Descriptions are provided for C. erythrochlorum N.G.Marchant, C. floriferum N.G.Marchant, and its two subspecies, C. lullfitzii N.G.Marchant, C. orarium N.G.Marchant, C. roycei N.G.Marchant, and C. xanthocladum N.G.Marchant. New combinations are made and descriptions provided for C. forrestii (F.Muell.) N.G.Marchant, and C. repens (A.S.George) N.G.Marchant. Precise localities for all taxa have been withheld for conservation reasons.
Two new, orange-flowered Tephrosia (Fabaceae: Millettieae) species from the Kimberley region, in Western Australia’s monsoon tropics
BUTCHER, R., Nuytsia 32: 39–50 (2021)
Ongoing taxonomic revision of Tephrosia Pers. in Australia is continuing to identify new taxa from study of existing herbarium collections as well as new material gathered from remote and under-collected areas. The Kimberley region of Western Australia is recognised for its biodiversity and endemism, but the recognition of new species is hampered by its inaccessibility, especially to areas of relief with complex microhabitats and refugia. It is from these areas that many recently described species, from across the Western Australian flora, have been collected. This paper describes and illustrates two new, poorly known, orange-flowered species of Tephrosia from the Kimberley region: T. cowiei R.Butcher, a close ally of the Northern Territory’s T. bifacialis Cowie, and T. funicularis R.Butcher, a distinctive new species from sandstone habitats.
