Boscabel Conostylis

Total Page:16

File Type:pdf, Size:1020Kb

Boscabel Conostylis INTERIM RECOVERY PLAN NO. 218 BOSCABEL CONOSTYLIS (CONOSTYLIS SETIGERA SUBSP. DASYS) INTERIM RECOVERY PLAN 2006-2011 May 2006 Department of Conservation and Land Management Species and Communities Branch (SCB) Kensington FOREWORD Interim Recovery Plans (IRPs) are developed within the framework laid down in Department of Conservation and Land Management (CALM) Policy Statements Nos. 44 and 50. IRPs outline the recovery actions that are required to urgently address those threatening processes most affecting the ongoing survival of threatened taxa or ecological communities, and begin the recovery process. CALM is committed to ensuring that Threatened taxa are conserved through the preparation and implementation of Recovery Plans (RPs) or IRPs, and by ensuring that conservation action commences as soon as possible and, in the case of Critically Endangered (CR) taxa, always within one year of endorsement of that rank by the Minister. This Interim Recovery Plan will operate from May 2006 to April 2011 but will remain in force until withdrawn or replaced. It is intended that, if the taxon is still ranked Critically Endangered, this IRP will be reviewed after five years and the need for a full Recovery Plan will be assessed. This IRP was given regional approval on 13 February, 2006 and was approved by the Director of Nature Conservation on 22 February, 2006. The allocation of staff time and provision of funds identified in this Interim Recovery Plan is dependent on budgetary and other constraints affecting CALM, as well as the need to address other priorities. Information in this IRP was accurate at May 2006. IRP PREPARATION This IRP was prepared by Bethea Loudon1. 1 Flora Conservation Officer, CALM Katanning District, PO Box 811, Katanning 6317. ACKNOWLEDGMENTS The following people have provided assistance and advice in the preparation of this Interim Recovery Plan: Anne Cochrane Manager, CALM’s Threatened Flora Seed Centre Amanda Shade Horticulturalist, Botanic Garden and Parks Authority Prof Steve Hopper School of Plant Biology, Faculty of Natural and Agricultural Sciences, University of Western Australia Andrew Brown Coordinator, Threatened Flora, CALM’s Species and Communities Branch Thanks also to the staff of the W.A. Herbarium for providing access to Herbarium databases and specimen information, and CALM's Species and Communities Branch for assistance. Cover photograph by Steve Hopper. CITATION This Interim Recovery Plan should be cited as: Department of Conservation and Land Management (2006). Boscabel Conostylis (Conostylis setigera subsp. dasys ) Interim Recovery Plan 2006-2011. Interim Recovery Plan No. 218. Department of Conservation and Land Management, Western Australia. 2 SUMMARY Scientific Name: Conostylis setigera subsp. dasys Common Name: Boscabel Conostylis Family: Haemodoraceae Flowering Period: October-November CALM Region: Wheatbelt CALM District: Katanning Shire: Shire of Kojonup Recovery Team: Katanning District Threatened Flora Recovery Team Illustrations and/or further information: A. Brown, C. Thomson-Dans and N. Marchant (Eds) (1998) Western Australia’s Threatened Flora; S.D. Hopper, R.W. Purdie, A.S. George and S.J. Patrick (1987), Haemodoraceae - Conostylis, Flora of Australia 45: 57-110. Current status: Conostylis setigera subsp. dasys was declared as Rare Flora under the Western Australian Wildlife Conservation Act 1950 in November 1991 and currently (2004) meets World Conservation Union (IUCN, 2000) Red List Category Critically Endangered ‘CR’ under criteria A1(a); B1ab(iii)+2ab(iii) due to an estimated decline in the number of mature individuals of 90% over three generations, a geographic range of less than 100 km2 and area of occupancy less than 10 km2, a severe fragmentation of populations (just two known) and a continuing decline in the quality of habitat. The species is listed as Endangered under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). The main threats are the taxon’s narrow distribution, habitat degradation due to the effects of Phytophthora cinnamomi, rabbits and poor seed production/viability. Description: Conostylis setigera subsp. dasys is a tufted perennial herb 15-30cm in height. Its distinctive leaves are flat with rough, white shaggy hairs over the entire surface and margins, and are coarse to touch. In October and November a yellow inflorescence appears in heads of 5-10 flowers on stalks that are usually shorter than the leaves. Flowers change to red with age (Hopper et al 1987). Habitat requirements: Conostylis setigera subsp. dasys is currently known from just two populations northwest of Kojonup. It grows in gravelly loam, gravelly sand and occasionally gravel, in Eucalyptus marginata and E. wandoo woodlands with low heath where Jarrah is dominant over Wandoo. Habitat critical to the survival of the species, and important populations: Habitat critical to the survival of the species includes the area of occupancy of important populations; areas of similar habitat surrounding important populations (i.e. gravelly loam, gravelly sand and occasionally gravel in Eucalyptus marginata and E. wandoo woodlands with low heath where Jarrah is dominant over Wandoo) provide potential habitat for natural range extension and are necessary to provide habitat for pollinators; the local catchment of the surface and possibly ground waters that maintain the habitat of the species; and additional occurrences of similar habitat that may contain the species or be suitable sites for future translocations. Given that this subspecies is listed as Critically Endangered it is considered that all known habitat for wild and future translocated populations is habitat critical and that all populations are important. Benefits to other species/ecological communities: There are no threatened ecological communities or other threatened species in the immediate vicinity of Conostylis setigera subsp. dasys. However, recovery actions implemented to improve the quality or security of the habitat of the subspecies, such as rabbit control, will benefit the remnant bushland habitat in which it occurs. International Obligations: This plan is fully consistent with the aims and recommendations of the Convention on Biological Diversity that was ratified by Australia in June 1993, and will assist in implementing Australia’s responsibilities under that Convention. The species is not listed under the United Nations Environment Program World Conservation Monitoring Centre (UNEP-WCMC) Convention on International Trade in Endangered Species (CITES). In addition, it is not listed under any other specific international treaty and this Interim Recovery Plan (IRP) does not affect Australia’s obligations under these international agreements. Role and interests of indigenous people: Indigenous communities interested or involved in the region affected by this plan have not yet been identified. The Aboriginal Sites Register maintained by the Department of Indigenous Affairs does not list any significant sites in the vicinity of these populations. However, not all significant sites are listed on the Register. Implementation of recovery actions under this plan will include consideration of the role and interests of indigenous communities in the region. Social and economic impacts: The implementation of this recovery plan is unlikely to cause significant adverse social and/or economic impacts. Populations occur on road reserves, a gravel reserve, unvested crown land and private property. 3 Negotiations have resulted in a voluntary agreement that the area directly supporting the species on private property will be left uncleared. Affected interests: Stakeholders potentially affected by the implementation of this plan include the Shire of Kojonup, as managers of the land that contains Population 1c and 1d, Main Roads WA as the managers of the land containing Population 1a, and the owners of the private land where Population 1b occurs. Evaluation of the Plans Performance: CALM will evaluate the performance of this IRP in conjunction with the Katanning District Threatened Flora Recovery Team. In addition to annual reporting on progress with listed actions and comparison against the criteria for success and failure, the plan is to be reviewed within five years of its implementation. Existing Recovery Actions: The following recovery actions have been or are currently being implemented – 1. Managers of land on which Population 1 and 2 occur have been made aware of the location and threatened status of the taxon. 2. Population 1B is a large piece of privately owned bush, fenced for conservation purposes. Other subpopulations of Population 1 and Population 2 are unfenced but are not affected by stock. 3. Some 63 seeds were collected from Population 1C and 70 seeds from Population 2 in December 1999. These are stored in CALM's Threatened Flora Seed Centre at –18C. Germination results were poor (0% and 11%). 4. The Botanic Garden and Parks Authority (BGPA) currently have 8 plants (of one clone) of Conostylis setigera subsp. dasys, and all are growing in the BGPA Nursery. 5. Cuttings were taken by Luke Sweedman (BGPA) in September 1993 from Population 1A. 6. Declared Rare Flora (DRF) markers are in place on road verges for populations 1A and 1D. 7. Environmental markers are present on power poles (Pole #127, 128 & 129) at Population 1B. 8. Staff from CALM's Katanning District regularly monitor populations of the taxon. 9. The Katanning District Threatened Flora Recovery Team is overseeing the implementation
Recommended publications
  • Cunninghamia Date of Publication: February 2020 a Journal of Plant Ecology for Eastern Australia
    Cunninghamia Date of Publication: February 2020 A journal of plant ecology for eastern Australia ISSN 0727- 9620 (print) • ISSN 2200 - 405X (Online) The Australian paintings of Marianne North, 1880–1881: landscapes ‘doomed shortly to disappear’ John Leslie Dowe Australian Tropical Herbarium, James Cook University, Smithfield, Qld 4878 AUSTRALIA. [email protected] Abstract: The 80 paintings of Australian flora, fauna and landscapes by English artist Marianne North (1830-1890), completed during her travels in 1880–1881, provide a record of the Australian environment rarely presented by artists at that time. In the words of her mentor Sir Joseph Dalton Hooker, director of Kew Gardens, North’s objective was to capture landscapes that were ‘doomed shortly to disappear before the axe and the forest fires, the plough and the flock, or the ever advancing settler or colonist’. In addition to her paintings, North wrote books recollecting her travels, in which she presented her observations and explained the relevance of her paintings, within the principles of a ‘Darwinian vision,’ and inevitable and rapid environmental change. By examining her paintings and writings together, North’s works provide a documented narrative of the state of the Australian environment in the late nineteenth- century, filtered through the themes of personal botanical discovery, colonial expansion and British imperialism. Cunninghamia (2020) 20: 001–033 doi: 10.7751/cunninghamia.2020.20.001 Cunninghamia: a journal of plant ecology for eastern Australia © 2020 Royal Botanic Gardens and Domain Trust www.rbgsyd.nsw.gov.au/science/Scientific_publications/cunninghamia 2 Cunninghamia 20: 2020 John Dowe, Australian paintings of Marianne North, 1880–1881 Introduction The Marianne North Gallery in the Royal Botanic Gardens Kew houses 832 oil paintings which Marianne North (b.
    [Show full text]
  • BFS048 Site Species List
    Species lists based on plot records from DEP (1996), Gibson et al. (1994), Griffin (1993), Keighery (1996) and Weston et al. (1992). Taxonomy and species attributes according to Keighery et al. (2006) as of 16th May 2005. Species Name Common Name Family Major Plant Group Significant Species Endemic Growth Form Code Growth Form Life Form Life Form - aquatics Common SSCP Wetland Species BFS No kens01 (FCT23a) Wd? Acacia sessilis Wattle Mimosaceae Dicot WA 3 SH P 48 y Acacia stenoptera Narrow-winged Wattle Mimosaceae Dicot WA 3 SH P 48 y * Aira caryophyllea Silvery Hairgrass Poaceae Monocot 5 G A 48 y Alexgeorgea nitens Alexgeorgea Restionaceae Monocot WA 6 S-R P 48 y Allocasuarina humilis Dwarf Sheoak Casuarinaceae Dicot WA 3 SH P 48 y Amphipogon turbinatus Amphipogon Poaceae Monocot WA 5 G P 48 y * Anagallis arvensis Pimpernel Primulaceae Dicot 4 H A 48 y Austrostipa compressa Golden Speargrass Poaceae Monocot WA 5 G P 48 y Banksia menziesii Firewood Banksia Proteaceae Dicot WA 1 T P 48 y Bossiaea eriocarpa Common Bossiaea Papilionaceae Dicot WA 3 SH P 48 y * Briza maxima Blowfly Grass Poaceae Monocot 5 G A 48 y Burchardia congesta Kara Colchicaceae Monocot WA 4 H PAB 48 y Calectasia narragara Blue Tinsel Lily Dasypogonaceae Monocot WA 4 H-SH P 48 y Calytrix angulata Yellow Starflower Myrtaceae Dicot WA 3 SH P 48 y Centrolepis drummondiana Sand Centrolepis Centrolepidaceae Monocot AUST 6 S-C A 48 y Conostephium pendulum Pearlflower Epacridaceae Dicot WA 3 SH P 48 y Conostylis aculeata Prickly Conostylis Haemodoraceae Monocot WA 4 H P 48 y Conostylis juncea Conostylis Haemodoraceae Monocot WA 4 H P 48 y Conostylis setigera subsp.
    [Show full text]
  • Supporting Information Appendix Pliocene Reversal of Late Neogene
    1 Supporting Information Appendix 2 Pliocene reversal of late Neogene aridification 3 4 J.M.K. Sniderman, J. Woodhead, J. Hellstrom, G.J. Jordan, R.N. Drysdale, J.J. Tyler, N. 5 Porch 6 7 8 SUPPLEMENTARY MATERIALS AND METHODS 9 10 Pollen analysis. We attempted to extract fossil pollen from 81 speleothems collected from 11 16 caves from the Western Australian portion of the Nullarbor Plain. Nullarbor speleothems 12 and caves are essentially “fossil” features that appear to have been preserved by very slow 13 rates of landscape change in a semi-arid landscape. Sample collection targeted fallen, well 14 preserved speleothems in multiple caves. U-Pb dates of these speleothems (Table S3) 15 ranged from late Miocene (8.19 Ma) to Middle Pleistocene (0.41 Ma), with an average age 16 of 4.11 Ma. 17 Fossil pollen typically is present in speleothems in very low concentrations, so pollen 18 processing techniques were developed to minimize contamination by modern pollen (1), but 19 also to maximize recovery, to accommodate the highly variable organic matter content of the 20 speleothems, and to remove a clay- to fine silt-sized mineral fraction present in many 21 samples, which was resistant to cold HF and which can become electrostatically attracted to 22 pollen grains, inhibiting their identification. Stalagmite and flowstone samples of 30-200 g 23 mass were first cut on a diamond rock saw in order to remove any obviously porous material. 24 All subsequent physical and chemical processes were carried out within a HEPA-filtered 25 exhausting clean air cabinet in an ISO Class 7 clean room.
    [Show full text]
  • Kew Science Publications for the Academic Year 2017–18
    KEW SCIENCE PUBLICATIONS FOR THE ACADEMIC YEAR 2017–18 FOR THE ACADEMIC Kew Science Publications kew.org For the academic year 2017–18 ¥ Z i 9E ' ' . -,i,c-"'.'f'l] Foreword Kew’s mission is to be a global resource in We present these publications under the four plant and fungal knowledge. Kew currently has key questions set out in Kew’s Science Strategy over 300 scientists undertaking collection- 2015–2020: based research and collaborating with more than 400 organisations in over 100 countries What plants and fungi occur to deliver this mission. The knowledge obtained 1 on Earth and how is this from this research is disseminated in a number diversity distributed? p2 of different ways from annual reports (e.g. stateoftheworldsplants.org) and web-based What drivers and processes portals (e.g. plantsoftheworldonline.org) to 2 underpin global plant and academic papers. fungal diversity? p32 In the academic year 2017-2018, Kew scientists, in collaboration with numerous What plant and fungal diversity is national and international research partners, 3 under threat and what needs to be published 358 papers in international peer conserved to provide resilience reviewed journals and books. Here we bring to global change? p54 together the abstracts of some of these papers. Due to space constraints we have Which plants and fungi contribute to included only those which are led by a Kew 4 important ecosystem services, scientist; a full list of publications, however, can sustainable livelihoods and natural be found at kew.org/publications capital and how do we manage them? p72 * Indicates Kew staff or research associate authors.
    [Show full text]
  • Nomenclatural Notes and New Taxa in the Conostylis Aculeata Group
    Nomenclaturalnotes and new taxa in the Conostylis aculeatagroup (Haemodoraceae) By StephenD. Hopper+ Abstract On the basisof detailedfield strLdies of lhe Co osrilisaculeata R.Br. gro.up andan examinationof specimensai themajor Australian berbaria, (i) C. robustt! Dielsis reinstatedas a speciesdistinct from C. acaleara,(ii) confusionconc.erning the ideniityol C. stylidioidesF. Muell. is clarified:this speciesis redescribed a1ldC. prolifercBenth. is r'einslatedas a distinctspecies; and (.iit\C. aculeata ssp.hrevifotu ssp. nov. and C. puLrcif{orasp. nov. are described;both are reslrictedendemics of the westerncoastal region of the SouihWest Botanical Provinceof w.A. A keyto the 7 speciesnow recognized in lhe C. acule.taEtoup is provided. Introduction The Conostylisq(uleatq R.Bt. group consists of a complex of sevenspecies of perennialherbs whicb are restrictedto the westerncoastal plain and nearby plateau regions of south-westernAustralia. The group forms part of the sectior Cor?orryl/.'(Bentham 1873; Geerinck 1969), and is characterizedby leaves with marginal spines or setae,numerous ovules borne all over the placentalsurface, and a basicchromosome number of x : 8. The taxonomy of this speciescomplex has been notably problematical in previonssystematic studies of the genus. Severalauthors have commented on difficultiesin delimiting taxa (Bentham 1873; Ewart 1906; Domin l9l2; Green 1960). Indeed,herbarium studies leave the impressionofa polymorphic but intergradingassemblage ofpopulations wjth few fornrsthat are consistently distinct throughout their geographicalrange. Elsewhere,the present author has shown that both hybridization and ecologically-correlatedintraspecific variation occur in speciesofthe C. aculeqta group near Dawesville on the Swan Coastal Plain (Hopper 1977). It was there denonstrated that while the identification of specimensfrom this region could be difficult in the herbarium, critical lield observatiorlsenabled the satisfactoryplacement of individuals into morphologically definable species and/or their hybrids.
    [Show full text]
  • On the Flora of Australia
    L'IBRARY'OF THE GRAY HERBARIUM HARVARD UNIVERSITY. BOUGHT. THE FLORA OF AUSTRALIA, ITS ORIGIN, AFFINITIES, AND DISTRIBUTION; BEING AN TO THE FLORA OF TASMANIA. BY JOSEPH DALTON HOOKER, M.D., F.R.S., L.S., & G.S.; LATE BOTANIST TO THE ANTARCTIC EXPEDITION. LONDON : LOVELL REEVE, HENRIETTA STREET, COVENT GARDEN. r^/f'ORElGN&ENGLISH' <^ . 1859. i^\BOOKSELLERS^.- PR 2G 1.912 Gray Herbarium Harvard University ON THE FLORA OF AUSTRALIA ITS ORIGIN, AFFINITIES, AND DISTRIBUTION. I I / ON THE FLORA OF AUSTRALIA, ITS ORIGIN, AFFINITIES, AND DISTRIBUTION; BEIKG AN TO THE FLORA OF TASMANIA. BY JOSEPH DALTON HOOKER, M.D., F.R.S., L.S., & G.S.; LATE BOTANIST TO THE ANTARCTIC EXPEDITION. Reprinted from the JJotany of the Antarctic Expedition, Part III., Flora of Tasmania, Vol. I. LONDON : LOVELL REEVE, HENRIETTA STREET, COVENT GARDEN. 1859. PRINTED BY JOHN EDWARD TAYLOR, LITTLE QUEEN STREET, LINCOLN'S INN FIELDS. CONTENTS OF THE INTRODUCTORY ESSAY. § i. Preliminary Remarks. PAGE Sources of Information, published and unpublished, materials, collections, etc i Object of arranging them to discuss the Origin, Peculiarities, and Distribution of the Vegetation of Australia, and to regard them in relation to the views of Darwin and others, on the Creation of Species .... iii^ § 2. On the General Phenomena of Variation in the Vegetable Kingdom. All plants more or less variable ; rate, extent, and nature of variability ; differences of amount and degree in different natural groups of plants v Parallelism of features of variability in different groups of individuals (varieties, species, genera, etc.), and in wild and cultivated plants vii Variation a centrifugal force ; the tendency in the progeny of varieties being to depart further from their original types, not to revert to them viii Effects of cross-impregnation and hybridization ultimately favourable to permanence of specific character x Darwin's Theory of Natural Selection ; — its effects on variable organisms under varying conditions is to give a temporary stability to races, species, genera, etc xi § 3.
    [Show full text]
  • Conservation Advice Conostylis Micrantha Small Flowered Conostylis
    THREATENED SPECIES SCIENTIFIC COMMITTEE Established under the Environment Protection and Biodiversity Conservation Act 1999 The Minister’s delegate approved this conservation advice on 01/04/2016. Conservation Advice Conostylis micrantha small flowered conostylis Conservation Status Conostylis micrantha (small flowered conostylis) is listed as Endangered under the Environment Protection and Biodiversity Conservation Act 1999 (Cwlth) (EPBC Act). The species is eligible for listing as prior to the commencement of the EPBC Act, it was listed as Endangered under Schedule 1 of the Endangered Species Protection Act 1992 (Cwlth). The main factors that are the cause of the species being eligible for listing in the Endangered category are the effects of wide scale land clearing which has resulted in the loss of most areas of suitable habitat (Stack & Chant 2005). The remaining 10 known populations are small and threatened by low levels of weed invasion and grazing by rabbits (Stack & Chant 2005). Description Small flowered conostylis is a small, tufted perennial herb to 30 cm in diameter with yellow- cream flowers that turn a brick red colour with age. The leaves are 13 to 24 cm long and circular in cross-section, with a few spreading, white hairs 3 to 9 mm long on the lower margins. The flowers are held on stems 5 to 13 cm long, with a hairy papery bract 3 to 8 mm long halfway up the stem (Hopper et al., 1987). The tubular flower is 5 to 7.5 mm long, and divides into six lobes that are cream inside and golden yellow outside (Brown et al., 1998).
    [Show full text]
  • Patterns of Smoke Germination in South-Eastern Australian Plants Final Report for the Australian Flora Foundation
    Patterns of smoke germination in south-eastern Australian plants Final Report for the Australian Flora Foundation Photo: The Australian Plant Bank at the Australian Botanic Garden, Mount Annan. Credit: http://www.plantbank.org.au/ NB: the work reported here is accepted for publication in the Journal of Vegetation Science. Written for the Australian Flora Foundation Grant awarded to the Principal Researcher, Professor Michelle R. Leishman for 2015. Prepared by Dr Alexandra J. R. Carthey May 2018 Department of Biological Sciences, Macquarie University, North Ryde, NSW 2109, Australia 1 Abstract Fire is a key part of the abiotic environment in many ecosystems, with adaptive responses to heat and smoke evident in plant taxa worldwide. We have known since the 1990's that smoke treatment promotes seed germination in some species. Smoke can also affect the timing and success of germination, as well as seedling vigour, in a range of species. Most of the research on smoke-promoted germination has been conducted in Mediterranean, Western Australian, South African fynbos, and Californian chaparral ecosystems, but we know little about germination responses to smoke for eastern Australian species. We also know very little about how phylogeny, growth form, vegetation type and fire response strategies (obligate seeders versus resprouters) might relate to patterns of smoke-promoted germination. We compiled data from existing literature and digitised paper records of germination trials in the Australian Plant Bank at Mount Annan, New South Wales. We then investigated patterns of smoke-promoted germination in eastern Australian flora to examine relationships between smoke response, taxonomy and phylogeny, growth form, fire response strategies and vegetation type.
    [Show full text]
  • Southwest Australian Vegetation
    Plant Formations in the Southwest Australian BioProvince Peter Martin Rhind Southwest Australian Jarrah Forest Unlike most of the World’s hardwood forests this type of forest is almost exclusively dominated by a single species the Jarrah (Eucalyptus marginata), which can form almost pure stands in certain areas especially where laterite soils predominate. The only other commonly associated trees are Eucalyptus calophylla (marri), E. patens (blacknut) and E. wandoo (wandoo). Commonly associated under storey species include the strange Casuarine fraserana and various banksias (Proteaceae) such as Banksia grandis, B. menziesii and B. attenuata. However, in addition there are various arborescent monocots such as the endemic Dasypogon hookeri, Kingia australis and Xanthorrhoea gracilis (Xanthorrhoeaceae). The most common liana is the endemic Kennedia coccinea (Fabaceae) and, in fact, both lianas and creepers are common features of these forests. The shrub layer, unlike the canopy, is also rich in species with many endemics. The most common of these is Stirlingia latifolia (Proteaceae), while other species include Acacia alata, Adenanthos barbigerus, Conospermum glumaceum, Dryandra praemorsa, Grevillea willsoni, Hakea lissocarpha, Isopogon sphaerocephalus (Proteaceae), Andersonia axilliflora, Astroloma ciliatum (Epacridaceae), Anigozanthos preissii (Haemodoraceae), Chorizema dicksonii, Daviesia cordata, Gastrolobium villosum (Fabaceae), Darwinia carnea, Hypocalymma robustum (Myrtaceae), Hemiandra linearis (Lamiaceae), Hibbertia hypericoides
    [Show full text]
  • Plant Life of Western Australia
    PART V The Flora of extra-tropical Western Australia and it’s classification. CHAPTER I. FLORISTIC SUBDIVISION OF THE REGION To correctly interpret the interesting floristic features of south-western Australia, the extensive use of statistical data is required. Since, however, such data are as yet inadequate, the best one can do is to provide a suitable foundation to enable a critical study of the facts. I have therefore examined and assessed all my data so as to achieve a uniform standard. The fact that these figures may be subject to considerable change in the future does not affect their usefulness. This was made clear by J. D. Hooker when he said “it is not from a consideration of specific details that such problems as those of the relationships between Floras and the origin and distribution of organic forms will ever be solved, although we must eventually look at these details for proofs of the solu- tions we propose”. The division of extra-tropical Western Australia into two distinct regions i.e. the Eremaean and the Southwest Province, has so far received most attention. Their ap- proximate boundaries were first recorded by Ferdinand von Müller. In several of his publications he refers to the importance of a line running from Shark Bay to the west side of the Great Bight, as separating the two Provinces. This line coincides, more or less , with the 30 cm isohyet which divides the arid interior from the coastal region. This line is also important from the standpoint of land settlement since it also marks the limit of the area where wheat can be successfully grown.
    [Show full text]
  • A Comparison of Invasive and Noninvasive Commelinaceae in a Phylogentic Context Jean Burns Moriuchi
    Florida State University Libraries Electronic Theses, Treatises and Dissertations The Graduate School 2006 A Comparison of Invasive and Noninvasive Commelinaceae in a Phylogentic Context Jean Burns Moriuchi Follow this and additional works at the FSU Digital Library. For more information, please contact [email protected] THE FLORIDA STATE UNIVERSITY COLLEGE OF ARTS AND SCIENCES A COMPARISON OF INVASIVE AND NONINVASIVE COMMELINACEAE IN A PHYLOGENTIC CONTEXT By Jean Burns Moriuchi A dissertation submitted to the Department of Biological Science in partial fulfillment of the requirements for the degree of Doctor of Philosophy Degree Awarded: Fall semester, 2006 Copyright (c), 2006 Jean Burns Moriuchi All Rights Reserved The members of the committee approve the dissertation of Jean Burns Moriuchi defended on 23 October 2006. _________________________ Thomas E. Miller Professor Directing Dissertation _________________________ William C. Parker Outside Committee Member _________________________ Scott J. Steppan Committee Member _________________________ Frances C. James Committee Member _________________________ David Houle Committee Member Approved: ___________________________________________________ Timothy S. Moerland, Chair, Department of Biological Science The office of Graduate Studies has verified and approved the above named committee members. ii ACKNOWLEDGEMENTS I thank K. S. Moriuchi for constant support, editing, and help with idea development. I thank T. E. Miller, F. C. James, S. J. Steppan, D. Houle, W. Parker, A. A. Winn, C. T. Lee, D. Richardson, M. Rejmánek, S. L. Halpern, J. Hereford, C. Oakley, K. Rowe, and S. Tso and for helpful comments on the writing and idea development. Special thanks to T. E. Miller for lab support, idea development, and constant encouragement, and to S. J. Steppan for training in molecular techniques, lab support, and systematics training.
    [Show full text]
  • Vegetative Anatomy of the Haemodoraceae and Its Phylogenetic Significance
    Int. J. Plant Sci. 178(2):117–156. 2017. q 2016 by The University of Chicago. All rights reserved. 1058-5893/2017/17802-0004$15.00 DOI: 10.1086/689199 VEGETATIVE ANATOMY OF THE HAEMODORACEAE AND ITS PHYLOGENETIC SIGNIFICANCE Layla Aerne-Hains1,* and Michael G. Simpson2,* *Department of Biology, San Diego State University, San Diego, California 92182, USA Editor: Félix Forest Premise of research. Haemodoraceae are a relatively small monocot family consisting of 14 genera and approximately 108 species and are distributed in parts of Australia, southern Africa, South and Central America, and eastern North America. The family is divided into two subfamilies, Haemodoroideae and Conostylidoideae. This research focuses on the vegetative anatomy of the family, with an emphasis on leaf anatomical features. The aims of this project are (1) to acquire new vegetative anatomical data for a large selection of Haemodoraceae and (2) to evaluate these data in the context of both phylogenetic relationships and environmental factors. Methodology. Cross sections of roots, stems (scapes), or leaves of 60 species and 63 ranked taxa from all 14 genera of the family were prepared and stained using standard histological methods, and SEMs were made of the leaf surface. Line drawings were prepared of leaf cross sections of an exemplar of each genus. Tissues and cells were examined and photographed, and comparisons were made among taxa. For leaf epidermal cells, the ratio of cell wall transectional area∶cell transectional area was calculated and plotted. Several dis- crete anatomical characters and character states were defined and plotted on a recently derived cladogram and examined for phylogenetic signal.
    [Show full text]