Persoonia Pauciflora
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PROTEACEAE – It's All About Pollination
PROTEACEAE – it’s all about pollination …….Gail Slykhuis Illustration Philippa Hesterman, images Ellinor Campbell & Marg McDonald A predominantly southern hemisphere plant family, Proteaceae is well represented in Australia, particularly in the West, but we do have our own equally special local representatives, some of which are outlined below. A characteristic feature of many genera within this plant family is the ‘pollen presenter’, which is a fascinating mechanism by which the pollen, which would otherwise be difficult to access for potential pollination vectors such as bees, birds and nectarivorous mammals, is positioned on the extended style of the flower, facilitating cross- pollination. The stigma, which is part of the style, is not mature at this time, thus avoiding self-pollination. A hand lens would enable you to clearly see pollen presenters on the following local representatives: Banksia marginata, Grevillea infecunda, Hakea spp., Isopogon ceratophyllus and Lomatia illicifolia. It is interesting to note that both Victorian Smoke-bush Conospermum mitchellii and Prickly Geebung Persoonia juniperina, also found in our district, do not have pollen presenters. Silver Banksia Banksia marginata This shrub or small tree is readily recognisable when flowering (Feb – July) by the conspicuous yellow pollen presenters, which are an obvious floral part of the banksia flower. These flowers then slowly mature into our iconic woody banksia cones. It is interesting to observe the changes in the nature of the pollen presenters as the flower develops. The white undersides of the leathery leaves provide a clue to the choice of common name with their tip being characteristically blunt or truncate. Anglesea Grevillea Grevillea infecunda One of our endemic plants, the Anglesea Grevillea was first named in 1986 and is Anglesea Grevillea found in several locations north west of Anglesea. -
Persoonia Levis Broad-Leaved Geebung
Persoonia levis Broad-leaved Geebung Geebung is an unusual name derived from Aboriginal languages: geebung is the name used by the Dharuk in the Sydney Region, and Jibbong by the Wiradjuri1. The genus name Persoonia, to our ears, is also unusual until you find out that it is named after a Dutch mycologist (someone who studies fungi), Christiaan Hendrik Persoon. Geebungs are endemic to Australia and there are almost 100 species which, for the most part, are found in eastern Australia, and in the SW corner of Western Australia. They are mostly small trees or shrubs. This particular species, Persoonia levis, common in Sydney bushland, grows along the central and north coast of NSW, and in the SE corner of NSW and NE corner of Victoria. We are accustomed to the subtle olives, blues, greys and yellowish greens of the foliage of the Australian bush but the Broad-leaved Geebung is quite a contrast with bright, apple green foliage. The fruits, too, are unusual, round and succulent, bright green colouring to purple, very different from the dry, hard fruits of other genera in the same (Proteaceae) family, for example, Needle Bush (Hakea), Telopea (Waratah), Grevillea and Woodly Pear (Xylomelum). Geebungs are also unusual in that they have seven chromosomes that are much larger than those of other Proteaceae2. Broad-leaved Geebung has papery bark that provides some protection from bushfires. Peel back the superficial burnt bark and you will find glorious, rich crimson beneath the blackened exterior. This species also has the potential to resprout after fires, and regenerate from seed. -
Pathogens Associated with Diseases. of Protea, Leucospermum and Leucadendron Spp
PATHOGENS ASSOCIATED WITH DISEASES. OF PROTEA, LEUCOSPERMUM AND LEUCADENDRON SPP. Lizeth Swart Thesis presented in partial fulfillment of the requirements for the degree of Master of Science in Agriculture at the University of Stellenbosch Supervisor: Prof. P. W. Crous Decem ber 1999 Stellenbosch University https://scholar.sun.ac.za DECLARATION 1, the undersigned, hereby declare that the work contained in this thesis is my own original work and has not previously in its entirety or in part been submitted at any university for a degree. SIGNATURE: DATE: Stellenbosch University https://scholar.sun.ac.za PATHOGENS ASSOCIATED WITH DISEASES OF PROTEA, LEUCOSPERMUM ANDLEUCADENDRONSPP. SUMMARY The manuscript consists of six chapters that represent research on different diseases and records of new diseases of the Proteaceae world-wide. The fungal descriptions presented in this thesis are not effectively published, and will thus be formally published elsewhere in scientific journals. Chapter one is a review that gives a detailed description of the major fungal pathogens of the genera Protea, Leucospermum and Leucadendron, as reported up to 1996. The pathogens are grouped according to the diseases they cause on roots, leaves, stems and flowers, as well as the canker causing fungi. In chapter two, several new fungi occurring on leaves of Pro tea, Leucospermum, Telopea and Brabejum collected from South Africa, Australia or New Zealand are described. The following fungi are described: Cladophialophora proteae, Coniolhyrium nitidae, Coniothyrium proteae, Coniolhyrium leucospermi,Harknessia leucospermi, Septoria prolearum and Mycosphaerella telopeae spp. nov. Furthermore, two Phylloslicla spp., telopeae and owaniana are also redecribed. The taxonomy of the Eisinoe spp. -
Annals of the History and Philosophy of Biology
he name DGGTB (Deutsche Gesellschaft für Geschichte und Deutsche Gesellschaft für Theorie der Biologie; German Society for the History and Philosophy of BioT logy) refl ects recent history as well as German tradition. Geschichte und Theorie der Biologie The Society is a relatively late addition to a series of German societies of science and medicine that began with the “Deutsche Gesellschaft für Geschichte der Medizin und der Naturwissenschaften”, Annals of the History founded in 1910 by Leipzig University‘s Karl Sudhoff (1853-1938), who wrote: “We want to establish a ‘German’ society in order to gather Ger- and Philosophy of Biology man-speaking historians together in our special disciplines so that they form the core of an international society…”. Yet Sudhoff, at this Volume 17 (2012) time of burgeoning academic internationalism, was “quite willing” to accommodate the wishes of a number of founding members and formerly Jahrbuch für “drop the word German in the title of the Society and have it merge Geschichte und Theorie der Biologie with an international society”. The founding and naming of the Society at that time derived from a specifi c set of histori- cal circumstances, and the same was true some 80 years lat- er when in 1991, in the wake of German reunifi cation, the “Deutsche Gesellschaft für Geschichte und Theorie der Biologie” was founded. From the start, the Society has been committed to bringing stud- ies in the history and philosophy of biology to a wide audience, us- ing for this purpose its Jahrbuch für Geschichte und Theorie der Biologie. Parallel to the Jahrbuch, the Verhandlungen zur Geschichte und Theorie der Biologie has become the by now traditional medi- Annals of the History and Philosophy Biology, Vol. -
Hunter-Central Rivers, New South Wales
Biodiversity Summary for NRM Regions Guide to Users Background What is the summary for and where does it come from? This summary has been produced by the Department of Sustainability, Environment, Water, Population and Communities (SEWPC) for the Natural Resource Management Spatial Information System. It highlights important elements of the biodiversity of the region in two ways: • Listing species which may be significant for management because they are found only in the region, mainly in the region, or they have a conservation status such as endangered or vulnerable. • Comparing the region to other parts of Australia in terms of the composition and distribution of its species, to suggest components of its biodiversity which may be nationally significant. The summary was produced using the Australian Natural Natural Heritage Heritage Assessment Assessment Tool Tool (ANHAT), which analyses data from a range of plant and animal surveys and collections from across Australia to automatically generate a report for each NRM region. Data sources (Appendix 2) include national and state herbaria, museums, state governments, CSIRO, Birds Australia and a range of surveys conducted by or for DEWHA. Limitations • ANHAT currently contains information on the distribution of over 30,000 Australian taxa. This includes all mammals, birds, reptiles, frogs and fish, 137 families of vascular plants (over 15,000 species) and a range of invertebrate groups. The list of families covered in ANHAT is shown in Appendix 1. Groups notnot yet yet covered covered in inANHAT ANHAT are are not not included included in the in the summary. • The data used for this summary come from authoritative sources, but they are not perfect. -
Endogenous Gibberellin Levels During Early Fruit Development of Macadamia
African Journal of Agricultural Research Vol. 6(20), pp. 4785-4788, 26 September, 2011 Available online at http://www.academicjournals.org/AJAR DOI: 10.5897/AJAR11.902 ISSN 1991-637X ©2011 Academic Journals Full Length Research Paper Endogenous gibberellin levels during early fruit development of macadamia Stephen J. Trueman Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore DC 4558, Australia. E-mail: [email protected]. Tel: +61 7 54565033. Accepted 12 August, 2011 Gibberellins play a key role in flower and fruit development, and fruits often contain high gibberellin concentrations. This study quantified endogenous gibberellins in flowers and immature fruits of the macadamia cultivars, H2 and 246, to assist in developing growth-regulator treatments for improving fruit set. GA 1, GA 3, GA 8, GA 9 and GA 20 was detected in flowers or fruits of both cultivars, and GA 4 were detected in flowers of cultivar 246. The timing of gibberellin accumulation was consistent between cultivars but total concentrations were very low (< 7 pmol g -1 fresh weight). Low gibberellin levels are consistent with the inability of the gibberellin-synthesis inhibitor, paclobutrazol, to influence fruit retention in macadamia. Key words: Abscission, fruit drop, kernel, nut, paclobutrazol, plant growth regulators, Proteaceae. INTRODUCTION Macadamia ( Macadamia integrifolia , Macadamia development (Wilkie et al., 2008; de Jong et al., 2009), tetraphylla and hybrids) is a subtropical evergreen tree and fruits often contain high levels of endogenous that is grown in plantations in South Africa, Australia, gibberellins (Zhang et al., 2007; Ayele et al., 2010). This Hawaii and Brazil. Macadamia trees produce masses of paper describes the identification and quantification of racemes in spring, each bearing 100 to 300 flowers gibberellins in developing macadamia fruits, and (Trueman and Turnbull, 1994a; Olesen et al., 2011). -
Plant Rarity: Species Distributional Patterns, Population Genetics, Pollination Biology, and Seed Dispersal in Persoonia (Proteaceae)
University of Wollongong Thesis Collections University of Wollongong Thesis Collection University of Wollongong Year Plant rarity: species distributional patterns, population genetics, pollination biology, and seed dispersal in Persoonia (Proteaceae) Paul D. Rymer University of Wollongong Rymer, Paul D, Plant rarity: species distributional patterns, population genetics, pollination biology, and seed dispersal in Persoonia (Proteaceae), PhD thesis, School of Biological Sciences, University of Wollongong, 2006. http://ro.uow.edu.au/theses/634 This paper is posted at Research Online. http://ro.uow.edu.au/theses/634 1 Plant rarity: species distributional patterns, population genetics, pollination biology, and seed dispersal in Persoonia (Proteaceae). PhD Thesis by Paul D. Rymer B.Sc. (Hons) – Uni. of Western Sydney School of Biological Sciences UNIVERSITY OF WOLLONGONG 2006 2 DECLARATION This thesis is submitted, in accordance with the regulations of the University of Wollongong, in fulfilment of the requirements of the degree of Doctor of Philosophy. The work described in this thesis was carried out by me, except where otherwise acknowledged, and has not been submitted to any other university or institution. 3 “Yes, Duckie, you’re lucky you’re not Herbie Hart who has taken his Throm-dim-bu-lator apart” (Dr. Seuss 1973) 4 Abstract An understanding of rarity can provide important insights into evolutionary processes, as well as valuable information for the conservation management of rare and threatened species. In this research, my main objective was to gain an understanding of the biology of rarity by investigating colonization and extinction processes from an ecological and evolutionary perspective. I have focused on the genus Persoonia (family Proteaceae), because these plants are prominent components of the Australian flora and the distributional patterns of species vary dramatically, including several that are listed as threatened. -
Species of Botryosphaeriaceae Occurring on Proteaceae
Persoonia 21, 2008: 111–118 www.persoonia.org RESEARCH ARTICLE doi:10.3767/003158508X372387 Species of Botryosphaeriaceae occurring on Proteaceae S. Marincowitz1, J.Z. Groenewald 2, M.J. Wingfield1, P.W. Crous1,2 Key words Abstract The Botryosphaeriaceae includes several species that are serious canker and leaf pathogens of Pro- teaceae. In the present study, sequence data for the ITS nrDNA region were used in conjunction with morphological Botryosphaeria observations to resolve the taxonomy of species of Botryosphaeriaceae associated with Proteaceae. Neofusicoccum Fusicoccum luteum was confirmed from Buckinghamia and Banksia in Australia, and on Protea cynaroides in South Africa. Neofusicoccum A major pathogen of Banksia coccinea in Australia was shown to be N. australe and not N. luteum as previously Saccharata reported. Neofusicoccum protearum was previously reported on Proteaceae from Australia, Madeira, Portugal and South Africa, and is shown here to also occur in Hawaii and Tenerife (Canary Islands). Furthermore, several previous records of N. ribis on Proteaceae were shown to be N. parvum. Saccharata capensis is described as a new species that is morphologically similar to S. proteae. There is no information currently available regarding its potential importance as plant pathogen and pathogenicity tests should be conducted with it in the future. Article info Received: 4 September 2008; Accepted: 25 September 2008; Published: 1 October 2008. INTRODUCTION recently added lineage representing the anamorph genus Aplosporella (Damm et al. 2007b). Botryosphaeria spp. and The Proteaceae (proteas) is a prominent Southern Hemisphere similar species are prevalent on proteas under environmental plant family consisting of approximately seven subfamilies, 60 stress, causing stem cankers, dieback or leaf blight (Crous et genera and 1 400 species (Rebelo 2001). -
Western Australian Natives Susceptible to Phytophthora Cinnamomi
Western Australian natives susceptible to Phytophthora cinnamomi. Compiled by E. Groves, G. Hardy & J. McComb, Murdoch University Information used to determine resistance to P. cinnamomi : 1a- field observations, 1b- field observation and recovery of P.cinnamomi; 2a- glasshouse inoculation of P. cinnamomi and recovery, 2b- field inoculation with P. cinnamomi and recovery. Not Provided- no information was provided from the reference. PLANT SPECIES COMMON NAME ASSESSMENT RARE NURSERY REFERENCES SPECIES AVALABILITY Acacia campylophylla Benth. 1b 15 Acacia myrtifolia (Sm.) Willd. 1b A 9 Acacia stenoptera Benth. Narrow Winged 1b 16 Wattle Actinostrobus pyramidalis Miq. Swamp Cypress 2a 17 Adenanthos barbiger Lindl. 1a A 1, 13, 16 Adenanthos cumminghamii Meisn. Albany Woolly Bush NP A 4, 8 Adenanthos cuneatus Labill. Coastal Jugflower 1a A 1, 6 Adenanthos cygnorum Diels. Common Woolly Bush 2 1, 7 Adenanthos detmoldii F. Muell. Scott River Jugflower 1a 1 Adenanthos dobagii E.C. Nelson Fitzgerald Jugflower NP R 4,8 Adenanthos ellipticus A.S. George Oval Leafed NP 8 Adenanthos Adenanthos filifolius Benth. 1a 19 Adenanthos ileticos E.C. George Club Leafed NP 8 Adenanthos Adenanthos meisneri Lehm. 1a A 1 Adenanthos obovatus Labill. Basket Flower 1b A 1, 7 14,16 Adenanthos oreophilus E.C. Nelson 1a 19 Adenanthos pungens ssp. effusus Spiky Adenanthos NP R 4 Adenanthos pungens ssp. pungens NP R 4 Adenanthos sericeus Labill. Woolly Bush 1a A 1 Agonis linearifolia (DC.) Sweet Swamp Peppermint 1b 6 Taxandria linearifolia (DC.) J.R Wheeler & N.G Merchant Agrostocrinum scabrum (R.Br) Baill. Bluegrass 1 12 Allocasuarina fraseriana (Miq.) L.A.S. Sheoak 1b A 1, 6, 14 Johnson Allocasuarina humilis (Otto & F. -
Defining and Mapping Rare Vegetation Communities: Improving Techniques to Assist Land-Use Planning and Conservation
Defining and mapping rare vegetation communities: improving techniques to assist land-use planning and conservation Stephen A. J. Bell BSc. (Hons) A thesis submitted for the degree of Doctor of Philosophy School of Environmental and Life Sciences The University of Newcastle February 2013 Declaration Statement of Originality This thesis contains no material which has been accepted for the award of any other degree or diploma in any university or other tertiary institution and, to the best of my knowledge and belief, contains no material previously published or written by another person, except where due reference has been made in the text. I give consent to this copy of my thesis, when deposited in the University Library, being made available for loan and photocopying subject to the provisions of the Copyright Act 1968. Statement of Collaboration I hereby certify that the concepts embodied in Chapter 2 of this thesis have been done in collaboration with a fellow researcher at this university. I have included as part of the thesis in Chapter 2 a statement clearly outlining the extent of collaboration with whom and under what auspices. Stephen A. J. Bell Preface “The vegetated landscape …. on first appearance presents a bewildering display of living matter, a higgledy-piggledy mass of trunks, leaves, branches, shrubs and grasses seemingly without form. The more observant may notice that the higgledy-piggledy mass varies from one place to another, that in some places there are trees as tall as large buildings while in other places there are no trees at all …. By the application of a systematic approach to viewing vegetation the bewildering display of plant life can take on new meaning thus altering one’s perception of what is being seen .… Suddenly the jumble of plant life reveals structures and beauties probably hitherto unseen”. -
Environmental Factors Influencing Fruit Production and Seed Biology of the Critically Endangered Persoonia Pauciflora (Proteaceae)
Folia Geobot https://doi.org/10.1007/s12224-019-09343-6 Environmental factors influencing fruit production and seed biology of the critically endangered Persoonia pauciflora (Proteaceae) Nathan J. Emery & Catherine A. Offord # The Author(s) 2019 Abstract The factors that influence seed production incubated seeds. Our study highlights the importance of and seed dormancy in rare plant species are crucial to ensuring appropriate biotic pollen vectors are present in their conservation yet are often poorly understood. In the local landscape for maximising viable fruit produc- this study, we examined the breeding system and seed tion for this species. In addition, our data indicate that biology of the critically endangered Australian endemic recruitment will most likely occur after the endocarp has species Persoonia pauciflora through a series of exper- suitably weakened, allowing physiological dormancy of iments. Pollinator visitation surveys and manipulative the embryo to be relaxed and germination to commence hand-pollination treatments were conducted to investi- following summer temperatures. gate the breeding system and subsequent seed produc- tion. We used an experimental seed burial to examine Keywords breeding system . endocarp . Leioproctus . the breakdown of the woody endocarp and changes to Persoonia pauciflora . pollination . seed germination germination over time. Seed germination response un- der simulated local seasonal conditions was also exam- ined. Persoonia pauciflora was found to be predomi- nantly pollinated by native bees, and cross-pollinated Introduction flowers produced significantly more mature fruit (18 ± 3%) than self-pollination treatments (2–3%). The aver- Numerous factors operating at a range of spatial scales can age strength of P. pauciflora pyrenes buried in soil affect plant abundance or rarity (Schemske et al. -
Seed Dispersal, Herbivory and Recruitment Failure of Persoonia Elliptica (Proteaceae) in Western Australian Jarrah (Eucalyptus Marginata) Forest
Seed dispersal, herbivory and recruitment failure of Persoonia elliptica (Proteaceae) in Western Australian Jarrah (Eucalyptus marginata) forest Sophie Monaco Bachelor of Science (Conservation and Wildlife Biology) School of Environmental Science, Murdoch University 2012 This thesis is my original work and has not been submitted, in whole or in part, for a degree at this or any other university. Nor does it contain, to the best of my knowledge and belief, any material published or written by another person, except as acknowledged in the text: Sophie Monaco, October 2012 Word count for all parts of the thesis, excluding references, figures and tables: 14,300 ii ABSTRACT Persoonia elliptica is a resprouting understorey tree species of the jarrah (Eucalyptus marginata) forests of South-Western Australia. All known populations are lacking in seedlings and saplings, resulting in population structures made up solely of mature trees and exhibiting clear recruitment failure. Little research has been done on this species other than a single study by Abbott and Van Heurck (1988) which described population structures and speculated that increased kangaroo herbivory might be the cause of recruitment failure. This study addresses the issue of recruitment failure, in particular with regards to seed production, viability and dispersal, and herbivory. This work describes the ecology of the species including fruit production, seed viability and population structure. The relationship between P. elliptica and the fauna of the region is examined with regard to seed dispersal vectors and dispersal distances, while the role macropods play in seedling and new growth herbivory and the link with recruitment failure is also examined.