Morphometric study of Euchiton (Gnaphalieae: Asteraceae)

2010 ◽  
Vol 23 (4) ◽  
pp. 285 ◽  
Author(s):  
Christina Flann

A morphometric study was undertaken to survey taxa in the genus Euchiton Cass., distributed across Australia, New Zealand and South-east Asia. Phenetic analyses of herbarium specimens showed several taxa to be well delimited, including E. brassii (Mattf.) Anderb., E. breviscapus (Mattf.) Anderb., E. lateralis (C.J.Webb) Breitw. & J.M.Ward, E. limosus (D.G.Drury) Holub, E. litticola A.M.Buchanan, E. traversii (Hook.f.) Holub and E. umbricola (J.H.Willis) Anderb. However, the analyses showed that the remainder of Euchiton taxa are not yet satisfactorily resolved taxonomically. The distributions of E. involucratus (G.Forst.) Holub and E. sphaericus (Willd.) Holub were elucidated, although these widespread species would benefit from more research. Further research is necessary into species delimitation between E. paludosus (Petrie) Holub and E. polylepis (D.G.Drury) Breitw. & J.M.Ward and within the E. japonicus complex, including E. audax (D.G.Drury) Holub, E. collinus Cass., E. delicatus (D.G.Drury) Holub, E. ensifer (D.G.Drury) Holub, E. japonicus (Thunb.) Holub and E. ruahinicus (D.G.Drury) Breitw. & J.M.Ward. Recognition of a proposed taxon E. ‘gracilis’ was not supported and description at this point is not recommended. The New Zealand material of E. audax, E. delicatus and E. ensifer was shown to differ from the Australian material in the micromorphology of the cypselae. Euchiton collinus is considered a synonym of E. japonicus, which also includes the Australian material attributed to E. audax, E. delicatus and E. ensifer. The presence of E. limosus in Australia was confirmed, with it differing from E. involucratus in having glabrous cypselae with paired papillae in both Australian and New Zealand material. Generic boundaries of Euchiton are problematic. The generic placement of Gnaphalium clemensiae Mattf. and E. umbricola remains unresolved. Insufficient data were available to make taxonomic conclusions regarding the generic placement of G. chiliastrum (Mattf.) P.Royen and G. heleios P.Royen from New Guinea.

Zootaxa ◽  
2019 ◽  
Vol 4706 (1) ◽  
pp. 147-170
Author(s):  
PEDRO DE S. CASTANHEIRA ◽  
RAPHAEL K. DIDHAM ◽  
COR J. VINK ◽  
VOLKER W. FRAMENAU

The scorpion-tailed orb-weaving spiders in the genus Arachnura Vinson, 1863 (Araneidae Clerck, 1757) are revised for Australia and New Zealand. Arachnura higginsii (L. Koch, 1872) only occurs in Australia and A. feredayi (L. Koch, 1872) only in New Zealand. A single female collected in south-eastern Queensland (Australia) is here tentatively identified as A. melanura Simon, 1867, but it is doubtful that this species has established in Australia. Two juveniles from northern Queensland do not conform to the diagnoses of any of the above species and are illustrated pending a more thorough revision of the genus in South-East Asia and the Pacific region. An unidentified female from Westport (New Zealand) does not conform to the diagnoses of A. feredayi and A. higginsii, but is not described due to its poor preservation status. Arachnura caudatella Roewer, 1942 (replacement name for Epeira caudata Bradley, 1876), originally described from Hall Sound (Papua New Guinea) and repeatedly catalogued for Australia, is considered a nomen dubium. 


1993 ◽  
Vol 6 (5) ◽  
pp. 457 ◽  
Author(s):  
PJ Garnock-Jones

The southern segregates of Veronica (Hebe, Parahebe, Chionohebe, Dementia, and Detzneria) form a monophyletic assemblage of c. 144 species found in New Guinea, Australia, New Zealand, Rapa, and South America. Most of the species occur in New Zealand, where Hebe is the largest genus and a characteristic member of many vegetation types. Cladistic analysis of the Hebe complex, based on 45 characters and 22 terminal taxa, indicates that: (1) Hebe is monophyletic if Hebe 'Paniculatae' is excluded and H. formosa is included; (2) Parahebe is paraphyletic; (3) Chionohebe is monophyletic, but is part of a larger clade which includes alpine Parahebe and possibly the monotypic Detzneria; (4) Hebe 'Paniculatae', Derwentia, and New Guinea Parahebe are monophyletic basal groups in the complex. According to this study, recognition of monophyletic genera would require six genera in the complex, supporting the recognition of Derwentia and separation of Hebe 'Paniculatae' from Hebe. Leonohebe Heads is considered polyphyletic and is not accepted; new combinations are provided for two species of Leonohebe with no name at species rank in Hebe. Competing biogeographic hypotheses have implied (1) a Gondwanan origin, or (2) migration from South-east Asia via New Guinea. An origin in Australasia from Asian ancestors best explains the topology of the basal parts of the cladogram, but at least seven dispersal events from New Zealand are postulated to explain the occurrence of species of Hebe in South America and Rapa and Parahebe, Hebe, and Chionohebe in Australia. An hypothesis which did not allow dispersal would require that nearly all the evolution in the complex occurred before the Tertiary, and hardly any since.


2014 ◽  
Vol 27 (6) ◽  
pp. 355 ◽  
Author(s):  
Daniel J. Ohlsen ◽  
Leon R. Perrie ◽  
Lara D. Shepherd ◽  
Patrick J. Brownsey ◽  
Michael J. Bayly

Aspleniaceae is one of the largest fern families. It is species-rich in Australasia and the south-western Pacific (ASWP), where approximately 115 species occur. In the current study, the chloroplast regions rbcL, trnL–trnF and rps4–trnS were sequenced for 100 Aspleniaceae samples from ASWP. These data were combined with published sequences for species from New Zealand and other regions for phylogenetic analyses. Species of Aspleniaceae from ASWP were placed in six of the eight previously identified inter-continental clades. The majority of species from ASWP were placed in two of these clades, with the remaining four clades each being represented by three or fewer species. Strong biogeographic affinities with South-east Asia were observed and immigration, rather than local radiations of endemic taxa, appears to have made a more important contribution to patterns of diversity in ASWP. This study supports the current taxonomic practice of recognising two genera, Asplenium L. and Hymenasplenium Hayata, in Aspleniaceae, and identifies future taxonomic work required for the family in this region, including potential synonymising of species, and revision of species complexes or widespread species that are demonstrably non-monophyletic.


2007 ◽  
Vol 21 (5) ◽  
pp. 407 ◽  
Author(s):  
Mark S. Harvey ◽  
Andrew D. Austin ◽  
Mark Adams

Five species of the nephilid genus Nephila Leach are found in the Australasian region, which for the purposes of this study was defined as Australia and its dependencies (including Lord Howe I., Norfolk I., Christmas I., Cocos (Keeling) Is), New Guinea (including Papua New Guinea and the Indonesian province of West Papua), Solomon Is, Vanuatu, New Caledonia, Fiji, Tonga, Niue, New Zealand and other parts of the south-west Pacific region. All species are redescribed and illustrated. Nephila pilipes (Fabricius) occurs in the closed forests of eastern and northern Australia, New Guinea, Solomon Is and Vanuatu (through to South-East Asia); N. plumipes (Latreille) is found in Australia (including Lord Howe I. and Norfolk I.), New Guinea, Vanuatu, Solomon Is and New Caledonia; N. tetragnathoides (Walckenaer) inhabits Fiji, Tonga and Niue; N. antipodiana (Walckenaer) occurs in northern Australia (as well as Christmas I.), New Guinea and Solomon Is (through to South-East Asia); and N. edulis (Labillardière) is found in Australia (including Cocos (Keeling) Is), New Guinea, New Zealand and New Caledonia. Epeira (Nephila) walckenaeri Doleschall, E. (N.) hasseltii Doleschall, N. maculata var. annulipes Thorell, N. maculata jalorensis Simon, N. maculata var. novae-guineae Strand, N. pictithorax Kulczyński, N. maculata var. flavornata Merian, N. pictithorax Kulczyński, N. maculata var. flavornata Merian, N. maculata piscatorum de Vis, and N. (N.) maculata var. lauterbachi Dahl are proposed as new synonyms of N. pilipes. Nephila imperialis var. novaemecklenburgiae Strand, N. ambigua Kulczyński, N. sarasinorum Merian and N. celebesiana Strand are proposed as new synonyms of N. antipodiana. Meta aerea Hogg, N. meridionalis Hogg, N. adelaidensis Hogg and N. meridionalis hermitis Hogg are proposed as new synonyms of N. edulis. Nephila picta Rainbow is removed from the synonymy of N. plumipes and treated as a synonym of N. edulis, and N. nigritarsis insulicola Pocock is removed from the synonymy of N. plumipes and treated as a synonym of N. antipodiana. Allozyme data demonstrate that N. pilipes is distinct at the 80% FD level from N. edulis, N. plumipes and N. tetragnathoides. Nephila plumipes and N. tetragnathoides, deemed to represent sister-taxa owing to the shared presence of a triangular protrusion of the male pedipalpal conductor, were found to differ at 15% FD in the genetic study. No genetic differentiation was found between 10 populations of N. edulis sampled across mainland Australia. Species of the genus Nephila have been extensively used in ecological and behavioural studies, and the biology of Nephila species in the Australasian region is extensively reviewed and compared with studies on Nephila species from other regions of the world.


2018 ◽  
Vol 66 (7) ◽  
pp. 556 ◽  
Author(s):  
Michael K. Macphail ◽  
Robert S. Hill

Fossil pollen and spores preserved in drillcore from both the upper South Alligator River (SARV) in the Kakadu National Park, Northern Territory and the North-West Shelf, Western Australia provide the first record of plants and plant communities occupying the coast and adjacent hinterland in north-west Australia during the Paleogene 66 to 23million years ago. The palynologically-dominant woody taxon is Casuarinaceae, a family now comprising four genera of evergreen scleromorphic shrubs and trees native to Australia, New Guinea, South-east Asia and Pacific Islands. Rare taxa include genera now mostly restricted to temperate rainforest in New Guinea, New Caledonia, New Zealand, South-East Asia and/or Tasmania, e.g. Dacrydium, Phyllocladus and the Nothofagus subgenera Brassospora and Fuscospora. These appear to have existed in moist gorges on the Arnhem Land Plateau, Kakadu National Park. No evidence for Laurasian rainforest elements was found. The few taxa that have modern tropical affinities occur in Eocene or older sediments in Australia, e.g. Lygodium, Anacolosa, Elaeagnus, Malpighiaceae and Strasburgeriaceae. We conclude the wind-pollinated Oligocene to possibly Early Miocene vegetation in the upper SARV was Casuarinaceae sclerophyll forest or woodland growing under seasonally dry conditions and related to modern Allocasuarina/Casuarina formations. There are, however, strong floristic links to coastal communities growing under warm to hot, and seasonally to uniformly wet climates in north-west Australia during the Paleocene-Eocene.


2001 ◽  
Vol 6 (1) ◽  
pp. 1-2

The collection of papers in this issue of Organised Sound results from a call for material focused on the theme of music technology in Australasia (New Zealand, Australia and neighbouring Islands of the South Pacific) and South East Asia (Brunei, Burma, Indonesia, Cambodia, Laos, Malaysia, the Philippines, Thailand and Vietnam).


1977 ◽  
Vol 25 (4) ◽  
pp. 429 ◽  
Author(s):  
DC Hassall

In Australia the genus Euphorbia L., sensu stricto, is represented by seven indigenous species in three subgenera. One species has been reported from Papua New Guinea and parts of South-east Asia, another from the New Hebrides; the remaining species are endemic to Australia. Two taxa are described as new species, viz. Euphorbia parvicaruncula and Euphorbia planiticola, and two former species are reduced to infraspecific rank, viz. Euphorbia tannensis subsp. eremophila, and Euphorbia tannensis subsp. eremophila var. finlaysonii. Observations are made on geographical distributions, interspecific relationships, and chromosome numbers.


Zootaxa ◽  
2021 ◽  
Vol 4964 (2) ◽  
pp. 251-287
Author(s):  
JONAS R. STONIS ◽  
ARŪNAS DIŠKUS ◽  
M. ALMA SOLIS ◽  
ALEXANDRE K. MONRO

We describe a new genus, Manitischeria Diškus & Stonis, gen. nov., and five new species: Manitischeria selindica Stonis & Diškus, sp. nov., M. namibiensis Stonis & Diškus, sp. nov. from Africa, and M. brachiata Diškus & Stonis, sp. nov., M. symbolica Diškus & Stonis, sp. nov., and M. baryshnikovae Diškus & Stonis, sp. nov. from South East Asia. We discuss the diagnostics of Manitischeria gen. nov. composed of these new species and others transferred from Tischeria Zeller. Species are mostly trophically associated with Malvaceae, but also Rhamnaceae and Betulaceae. We list 18 currently known species of Manitischeria gen. nov., including M. ptarmica (Meyrick), the type species, and provide 13 new combinations and the first documentation of genitalia of some, previously little-known species. New species are illustrated with photographs or drawings of the adults, genitalia, and the leaf mines when available. We briefly discuss the use of herbarium specimens to discover lepidopteran leaf mines, host plant, and distribution data. 


ZooKeys ◽  
2020 ◽  
Vol 907 ◽  
pp. 1-99 ◽  
Author(s):  
Théo Léger ◽  
Christian Kehlmaier ◽  
Charles S. Vairappan ◽  
Matthias Nuss

Hoploscopa Meyrick (Lepidoptera: Crambidae) is a fern-feeding genus found in montane areas of South-East Asia and Melanesia, eastwards up to the Samoan Islands. It includes sixteen described species, with at least 70 further undescribed species known from scientific collections. An iterative approach including morphological and molecular characters was used in order to explore the diversity of Hoploscopa. The hitherto described species are revised, and descriptions authored by T. Léger and M. Nuss are provided for an additional 26 new species: H. agtuuganonensissp. nov., H. albipunctasp. nov., H. albomaculatasp. nov., H. anacanthasp. nov., H. boletasp. nov., H. cynodontasp. nov., H. danaoensissp. nov., H. gombongisp. nov., H. gracilissp. nov., H. ignitamaculaesp. nov., H. isarogensissp. nov., H. jubatasp. nov., H. kelamasp. nov., H. kinabaluensissp. nov., H. mallyisp. nov., H. marijoweissaesp. nov., H. matheaesp. nov., H. niveofasciasp. nov., H. pangrangoensissp. nov., H. parvimaculasp. nov., H. pseudometacrossasp. nov., H. sepanggisp. nov., H. sumatrensissp. nov., H. titikasp. nov., H. tonsepisp. nov., H. ypsilonsp. nov. Using a protocol specific for the amplification of DNA from old museum specimens, we recovered 101 COI barcodes for all but one of the newly described species, with 76 being barcode compliant (>487 bp). Species delimitation analyses suggest cryptic diversity, with six cases reflecting allopatric divergence, and two further cases found in sympatry.


2014 ◽  
Vol 70 (a1) ◽  
pp. C1292-C1292
Author(s):  
Jagadese Vittal

Crystallography has been extensively practiced in a number of Asian countries such as India, China, Japan, S. Korea, Taiwan, Australia, New Zealand and Singapore, and to a lesser extent in Malaysia and Thailand for decades, but not in many parts of South East Asia. The International Year of Crystallography (IYCr 2014) provided an opportunity to reach out some of these countries to initiate or intensify the crystallographic activities in terms of workshops, conferences, crystal growing competition, etc. As a part of this initiative, the IUCr with the help of the Asian Crystallographic Association contacted various academicians and researchers in Malaysia, Thailand, Indonesia and Fiji to increase the awareness of the science of crystallography through various activities, to promote education and research in crystallography and to inspire young people through hand-on demonstration in school, among the activities planned in 2014. The speaker will collate the details of these activities and present in his talk. He will also discuss details of the Crystal Growing Challenge in Singapore among the other activities planned to celebrate IYCr 2014 in Singapore.


Sign in / Sign up

Export Citation Format

Share Document