Boronia hapalophylla (Rutaceae), a new and restricted species from north-eastern New (original) (raw)
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Two new species of Boronia (Rutaceae) endemic in Victoria
Muelleria: An Australian Journal of Botany
new species of Boronia (Rutaceae) endemic in Victoria. Muelleria 8(1): 21-25 (1993).-Two new species of Boronia {B. citrata and B. galbraithiae) endemic in eastern Victoria, are described and illustrated. Their ecology, distribution and conservation status and relationships with other species are discussed.
M.F. Duretto. Taxonomic notes on Boronia species of northwestern Australia, including a revision of the Boronia lanuginosa group (Boronia section Valvatae: Rutaceae). Nuytsia 11(3): 301-346 (1997). The revision of Boronia (Rutaceae) in the Northern Territory, the Kimberley Region of Western Australia, and northwestern Queensland is completed, and a key to all species is provided. The B. lanuginosa Endl. species group is characterized as those species with pinnate leaves, a calyx as large as or larger than the corolla, multiangular stellate hairs, and a pronounced ridge on the micropylar side of the seed. This clade comprises the B. lanuginosa species complex, B. filicifolia A. Cunn. ex Benth., B. pauciflora W. Fitzg. and five newly described species: viz. B. decumbens Duretto, B. minutipinna Duretto, B. kalumburuensis Duretto, B. jucunda Duretto and B. tolerans Duretto. The B. lanuginosa species complex has four available names and was analysed numerically using phenetic methods. Two taxa were identified in the analysis. Boronia artemisiifolia var. wilsonii F. Muell. ex Benth. is raised to specific status while B. affinis R. Br. ex Benth. and B. artemisiifolia F. Muell. are synonymized under B. lanuginosa. Additionally, B. rupicola Duretto is described, and B. filicifolia, B. lanceolata F. Muell., B. lanuginosa and B. pauciflora are lectotypified. Boronia lanuginosa species complex Endlicher (1837) described B. lanuginosa from material that was collected by Ferdinand Bauer and labelled King George's Sound. King George Sound is in southwestern Australia, but Bauer had travelled with Matthew Flinders, on the "Investigator", around northern Australia (see Specht 1958a,b; Wilson 1975). Bentham (1863), who had not seen the type material of B. lanuginosa, applied this name to a southwestern Western Australian species that is found growing around King George Sound (Wilson 1975). Later, Mueller (1859) described B. artemisiifolia (as B. artemisifolia) from material he collected while on Gregory's Northern Australian Expedition. Bentham (1863) used this later name (written as B. artemisiaefolia) in his "Flora Australiensis". Subsequently, and up until 1975, specimens of Boronia from northern Australia that had a dense indumentum, pinnate leaves and a large calyx have been called B. artemisiifolia, with orthographic variation. After studying type material of B. lanuginosa, Wilson (1975) realized Bentham's error and synonymized B. artemisiifolia with B. lanuginosa. He concluded that the type locality of B. lanuginosa was somewhere on the coast of Arnhem Land where Flinders'ship "The Investigator" had travelled on its second voyage. Robert Brown, who was on "The Investigator" with Bauer and Flinders, collected plant specimens from the islands of the Gulf of Carpentaria that are identical to the type material of B. lanuginosa (Wilson pers. comm.), strengthening Wilson's argument. The southwestern Western Australian species that had previously been called B. lanuginosa is now known as B. stricta Bartl. (Wilson 1975). Bentham (1863) described B. affinis, B. filicifolia and B. artemisiifolia var. wilsonii (presently synonymized under B. lanuginosa) from northwestern Australia. The type material of B. affinis ("N. Australia. Islands of the Gulf of Carpentaria, and mainland opposite Groote Eylandt") was collected by Robert Brown while travelling with Matthew Flinders and Ferdinand Bauer on "The Investigator" in 1802-03. The main feature that has been used to distinguish B. affinis from B. lanuginosa is that B. affinis is glabrous or has a sparse indumentum while B. lanuginosa has a dense indumentum. There is much confusion surrounding the application of these two names. Judging from present herbarium records and collections, B. affinis and B. lanuginosa are sympatric in the Northern Territory. Boronia affinis is considered to be rare, possibly endangered, and confined to the Northern Territory (Briggs & Leigh 1988 [not listed in Briggs & Leigh 1996]; Hnatiuk 1990) while B. lanuginosa (as currently circumscribed) is common and widespread from King Sound (WA) to Wollogorang Station (NT) (Figure 1). Boronia lanuginosa has an ontogenetic sequence in leaf development from glabrous leaves, or leaves with a sparse simple and stellate indumentum, to leaves having a dense stellate indumentum, as has been observed in other members of section
A cladistic analysis of Boronia section Valvatae (Rutaceae)
Australian Systematic Botany, 1998
A phylogenetic analysis, using 55 morphological and anatomical characters, of all 58 species of Boronia section Valvatae was completed. On the basis of this analysis B. alata, B. algida and B. edwardsii are removed from section Valvatae and it is proposed that two new sections be erected to accommodate them. Boronia section Valvatae s. str., apart from valvate and persistent petals, is defined by the of presence stellate hairs, valvate sepals and axillary inflorescences. An infrageneric classification, based on the cladogram, of Boronia section Valvatae s. str. is proposed and includes four subsections, nine series and five subseries. Of the four subsections, Ternatatae is endemic to the south-west of Australia, Bowmaniae to Cape York, and Grandisepalae to the ‘Top End’ of the Northern Territory (including north-west Queensland) and the Kimberley Region. Subsection Valvatae is widespread but is predominantly found in the south-east of Australia
Nuytsia Four new species of Boronia (Rutaceae) from the Kimberley region of Western Australia
2015
All of these species have very restricted distributions and are of conservation concern. All new species are illustrated. A revised key to Boronia species in the Kimberley region is provided. Boronia kalumburuensis was recognised by Duretto (1997) based on a small number of collections from around Kalumburu and Theda Station. It is placed in Boronia subser. Filicifoliae Duretto (ser. Lanuginosae) which currently contains four other described species, viz. B. barrettiorum Duretto, B. filicifolia A.Cunn. ex Benth., B. minutipinna Duretto and B. pauciflora (Duretto 1999; Duretto et al. 2013). Other Kimberley species from ser. Lanuginosae are B. jucunda Duretto (subser. Jucundae Duretto), B. lanuginosa Endl. and B. wilsonii (subser. Lanuginosae). Further fieldwork in the region has provided additional collections of B. kalumburuensis s. lat. from known locations, as well as new populations from the King Edward River to Lawley River and Prince Regent River. These additional populations each have their own unique characteristics, requiring a reassessment of species boundaries in B. kalumburuensis and B. wilsonii. Careful study of these populations has concluded that three taxa should be recognised at species rank from B. kalumburuensis s. lat. and we describe B.
Nordic Journal of Botany, 2012
Comparative seed morphology of Boronia Sm. , Boronella Baill. , Neobyrnesia J. A. Armstr. and Zieria Sm., 31 taxa in total, in Rutaceae is studied. Th e seeds are ventrally ellipsoid to ovoid (0.93-4.42 ϫ 0.50-2.31 ϫ 0.95-2.70 mm). Colour is brown to black. An elaiosome which is related to myrmechocory was observed in Boronella , Boronia , Neobyrnesia and Zieria. Six testa surface pattern types are identifi ed: Type I (Boronia sect. Boronia)-smooth, and cells not barely discernable; Type II (Boronella)-smooth and cells more or less rectangular and often cells elongated; Type III (Boronia sects. Boronia , Cyanothamnus , Imbricatae and Valvatae , Neobyrnesia)-colliculate with four subtypes by presence, absence of ridges or ridge characters; Type IV (Boronia sect. Alatae)-digit form; Type V (Boronia sect. Algidae)-alveolate; Type VI (Zieria)-ridged, the interridge area formed by both cells that form the ridges and cells that do not form the ridges. Seed morphology, especially testa surface patterns, was partially congruent with the current classifi cation of Boronia, with most sections having apomorphies , and provided additional support for the placement of Boronella near Boronia sect. Boronia. Hilum (surrounded by labiose margin or not) and elaiosome shape also off er useful diagnostic characters for Boronia at infrageneric levels. Neobyrnesia and Zieria both had unique testa surface patterns. Th e seed morphological data contribute to our understanding of systematic relationship in the subtribe Boroniinae. Rutaceae are a nearly cosmopolitan family that includes 154 genera and approximately 2,100 species (Kubitzki et al. 2011). It is an economically important family which includes Boronia Sm. and Citrus L. (Chase et al. 1999, Groppo et al. 2008, Kubitzki et al. 2011). Th e family is currently divided into three subfamilies, Rutoideae, Aurantioideae and Cneoroideae (Kubitzki et al. 2011). As recent studies have indicated that the infrafamilial classifi cation of Rutaceae is unnatural, Kubitzki et al. (2011), instead of tribes and subtribes, use informal ' Alliances and Groups '. Subfamily Rutoideae contains tribe Boronieae, which was called the Boronia Alliance by Kubitzki et al. (2011). Tribe Boronieae includes 18 genera and approximately 390 species, and may prove to be polyphyletic (Groppo et al. 2008, Kubitzki et al. 2011). According to Engler (1931), Boronieae is divided into fi ve subtribes, and in the subtribe Boroniinae he included Acrade
Karyotype evolution in the genus Boronia (Rutaceae)
Botanical Journal of the …, 2003
18 species and one interspecific hybrid revealed that they are highly complex in terms of chromosome number, ploidy level, chromosomal length, karyotype constitution and asymmetry. Karyotype analysis indicated that Boronia taxa with high chromosome numbers are primitive and those with lower numbers are derived. The basic chromosome number for this genus is suggested to be x = 18. Analysis of chromosome number, variations of total chromosome length (TCL) and average chromosome length (ACL), Nombre Fondamental (NF) and karyotype asymmetry suggest that dysploid reduction is the major mechanism in Boronia karyotype evolution. Chromosomal rearrangements might also have been involved. Origin, chromosome number changes and spread of Boronia are discussed in relation to the species divergence and the geological and climatic changes of the Australian continent.
Boronia keysii Taxon Profile and Habitat Map
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