39 research outputs found
Zieria fordii and Z. wilhelminae (Rutaceae), two new and restricted Queensland species segregated from the morphologically similar and widespread Z. cytisoides.
Zieria fordii Duretto and Z. wilhelminae Duretto (Rutaceae), two species from the Cook and South Kennedy Districts of Queensland and morphologically similar to Z. cytisoides Sm., are newly described. Illustrations, an updated key to the genus Zieria in Queensland, and information on the distribution, conservation status, and ecology for both species are provided
New subspecies for the south-west Western Australian species Boronia clavata and B. denticulata (Rutaceae)
The south-west Western Australian species Boronia clavata Paul G.Wilson and B. denticulata Sm. (Rutaceae) are revised and B. clavata subsp. grandis Duretto from Cape Arid National Park and B. denticulata subsp. whoogarupensis Duretto from in and near western Fitzgerald River National Park are newly described
Asterolasia beckersii (Rutaceae), a new species from the Northern Tablelands, New South Wales
Asterolasia beckersii Orme & Duretto (Rutaceae) is newly described. The species is restricted to the Nundle area (Tamworth district) on the Northern Tablelands of New South Wales. The species is related to A. correifolia (A.Juss.) Benth. and A. hexapetala (A.Juss.) Druce and can be distinguished from these by leaf, inflorescence and floral characters. The ecology and conservation status of A. beckersii are discussed and a key to Asterolasia for eastern Australia is provided
Leionema praetermissum (Rutaceae), a new restricted endemic for New South Wales.
Leionema praetermissum P.R.Alvarez & Duretto (Rutaceae), previously called L. sp. Colo River (P.H.Weston 2423), is here formally described. This rare species is found in Wollemi National Park in the Central Coast Region of New South Wales, Australia. We present information on its distribution, conservation status and an updated key to the genus Leionema for New South Wales and south-east Queensland
A reassessment of Asterolasia correifolia (Rutaceae) with descriptions of the newly recognised A. exasperata and A. sola
Asterolasia correifolia (A.Juss.) Benth. (Rutaceae) is revised and a narrower circumscription adopted; it is now considered to be endemic to New South Wales (NSW). Plants from the Northern Tablelands (NSW) and the Carnarvon Range (Queensland) represent distinct species and A. exasperata P.R.Alvarez & Duretto and A. sola Duretto & P.R.Alvarez are newly described for them. These species are distinguished from A. correifolia by leaf shape, the size of the hairs on the stems and leaves, and by having smaller inflorescences. Descriptions, illustrations, ecological and conservation notes are provided for A. correifolia, A. exasperata, and A. sola. A key to Asterolasia for eastern Australia is also provided
Strelitzia nicolai (Strelitziaceae): a new species, genus and family weed record for New South Wales
Strelitzia nicolai Regel & Körn. (Strelitziaceae) is newly recorded as a sparingly naturalised weed for New South Wales and represents new family, generic and species records for the state. Descriptions, notes and keys are provided for the family, genus and species
Hibbertia fumana (Dilleniaceae), a species presumed to be extinct rediscovered in the Sydney region, Australia
Hibbertia fumana Sieber ex Toelken (Dilleniaceae), a species thought to be extinct, was rediscovered during routine botanical surveys in western Sydney. A revised description, including for the first time that of fruit and seed, is provided along with ecological notes, an illustration, and a photograph
A cladistic and biogeographical analysis of Boronia Sm. section Valvatae (Benth.) Engl. (Rutaceae)
© 1995 Dr. Marco Fillipo DurettoBoronia section Valvatae currently includes 34 recognised taxa found in all states of Australia except Tasmania. All species of Boronia from northern Western Australia and the Northern Territory, and the majority of species from Queensland, are included in section Valvatae, while most species from southern Australia belong to other sections of the genus. Section Valvatae is considered to be monophyletic on the basis of valvate petals.
On the basis of extensive field collecting and a survey of herbarium specimens 19 species and two varieties new to science were identified as taxonomically distinct by comparison with all other taxa. Numerical analyses using phenetic methods of three species complexes, where taxonomic boundaries were unclear, were completed. In the B. grandisepala species complex four taxa were recognised including one subspecies and two species new to science. Additionally four possibly new taxa were identified. The B. lanuginosa species complex proved to contain two taxa, B. lanuginosa s. str. and B. artemisiifolia var. wilsonii, the latter being raised to specific status. Boronia affinis was synonymised with B. lanuginosa. Four species were identified in the B. rosmarinitolia species complex of which three are new to science. The section is revised, all available names are assigned, and taxa are described and lectotypified where necessary. As a result of this study 61 species and subspecific taxa are now recognised for Boronia section Valvatae s. lat., including 55 species, two subspecies and six varieties.
All species were included in a cladistic analysis, using parsimony, of the section Valvatae using morphological and anatomical characters. Two analyses were completed to identify basal clades in the ingroup. Sections Boronia and Cyanothamnus were used as outgroups in the first analysis. Boronia alata, B. algida and B. edwardsii were basal to the remainder of section Valvatae in this analysis and were used as outgroups in the second analysis. These three taxa and the next basal clade (B. ternata, B. adamsiana, B. ericifolia and B. revoluta) were used as outgroups in the final analysis.
Boronia alata, B. algida and B. edwardsii are removed from section Valvatae and a monotypic section Alatae, and section Algidae for B. algida and B. edwardsii are erected. Boronia section Valvatae s. str., apart from valvate petals, is further supported by stellate hairs, valvate sepals and axillary inflorescences. This clade is divided into four main clades which are given subsectional status. Subsection Ternatae is restricted to south-west Western Australia and is characterised by reniform and dull seeds; subsection Bowmanianae is confined to Cape York (Old) and is characterised by stellate hairs with fused rays; subsection Valvatae is confined mainly to south-eastern Australia, though some species are found in north Queensland and the Northern Territory, and is characterised by the prominent midvein and flexuous hairs on the abaxial surface of the petals; and subsection Grandisepalae is restricted to the Northern Territory and the Kimberley region (W.A.) and is characterised by large sepals, club shaped filaments, and large antepetalous anthers. The first infrageneric classification of Boronia section Valvatae s. str. is proposed based on the cladogram and includes four subsections, nine series and 10 subseries.
A cladistic biogeographical analysis of Boronia section Valvatae s. str. supports a hypothesis of area relationships that south-west Western Australia first differentiated, followed by the differentiation of eastern Australia from north-west Australia. Within the north-west the Kimberley region subsequently differentiated from the ‘Top End’ of the Northern Territory; and within the east north Queensland differentiated from southern Queensland, New South Wales and Victoria
Taxonomic notes on Boronia species of north-western Australia, including a revision of the Boronia lanuginosa group (Boronia section Valvatae : Rutaceae)
Volume: 11Start Page: 301End Page: 34
A new classification for subtribe Pterostylidinae (Orchidaceae), reaffirming Pterostylisin the broad sense
A new classification for subtribe Pterostylidinae (Orchidaceae) is formally described in which there is one genus, Pterostylis R.Br., two subgenera and 10 sections. Five new combinations are made for this classification at the ranks of subgenus and section, viz. Pt. subg. Oligochaetochilus (Szlach.) Janes & Duretto, Pt. sect. Parviflorae (Benth.) Janes & Duretto, Pt. sect. Pharochilum (D.L.Jones & M.A.Clem.) Janes & Duretto, Pt. sect. Stamnorchis (D.L.Jones & M.A.Clem.) Janes & Duretto and Pt. sect. Urochilus (D.L.Jones & M.A.Clem.) Janes & Duretto. Pt. ser. Parviflorae Benth. is lectotypified. To complete the revision, seven new species-level combinations are made for two species from Western Australia, one from New South Wales and four from Queensland, viz. Pt. anaclasta (D.L.Jones) Janes & Duretto, Pt. extranea (D.L.Jones) Janes & Duretto, Pt. pearsonii (D.L.Jones) Janes & Duretto, Pt. pedina (D.L.Jones) Janes & Duretto, Pt. sinuata (D.L.Jones) Janes & Duretto, Pt. timothyi (D.L.Jones) Janes & Duretto and Pt. thulia (D.L.Jones) Janes & Duretto