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Hakea Ochroptera
''Hakea ochroptera'' is a species of flowering plant in the family Proteaceae and is Endemism, endemic to a restricted area of New South Wales. It is a shrub with long, needle-shaped leaves and an abundance of cream-white flowers in spring. Description ''Hakea ochroptera'' is a tall shrub or tree to high with descending branches and does not form a lignotuber. Young stems, leaves and Pedicel (botany), pedicels are hairy and rusty coloured. The leaves are needle-shaped, long and about wide ending with a point long. Creamy-white flowers appear in umbels of up to six flowers in the leaf axils from September to October. The fruit are long and wide with small blister-like growths on the surface ending with an obscure or absent horn. Taxonomy and naming ''Hakea ochroptera'' was first formally described in 1996 by South Australian botanist William Robert Barker, William Barker and the description was published in the Adelaide Botanic Garden, Journal of the Adelaide Botanic Garde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasian Virtual Herbarium
The ''Australasian Virtual Herbarium'' (AVH) is an online resource that allows access to plant specimen data held by various Australian and New Zealand herbaria. It is part of the Atlas of Living Australia (ALA), and was formed by the amalgamation of ''Australia's Virtual Herbarium'' and ''NZ Virtual Herbarium''. As of 12 August 2014, more than five million specimens of the 8 million and upwards specimens available from participating institutions have been databased. Uses This resource is used by academics, students, and anyone interested in research in botany in Australia or New Zealand, since each record tells all that is known about the specimen: where and when it was collected; by whom; its current identification together with the botanist who identified it; and information on habitat and associated species. ALA post processes the original herbarium data, giving further fields with respect to taxonomy and quality of the data. When interrogating individual specimen record ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proteaceae
The Proteaceae form a family of flowering plants predominantly distributed in the Southern Hemisphere. The family comprises 83 genera with about 1,660 known species. Together with the Platanaceae and Nelumbonaceae, they make up the order Proteales. Well-known genera include ''Protea'', ''Banksia'', ''Embothrium'', ''Grevillea'', ''Hakea'' and ''Macadamia''. Species such as the New South Wales waratah (''Telopea speciosissima''), king protea (''Protea cynaroides''), and various species of ''Banksia'', ''soman'', and ''Leucadendron'' are popular cut flowers. The nuts of ''Macadamia integrifolia'' are widely grown commercially and consumed, as are those of Gevuina avellana on a smaller scale. Australia and South Africa have the greatest concentrations of diversity. Etymology The name Proteaceae was adapted by Robert Brown from the name Proteae coined in 1789 for the family by Antoine Laurent de Jussieu, based on the genus ''Protea'', which in 1767 Carl Linnaeus derived from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lignotuber
A lignotuber is a woody swelling of the root crown possessed by some plants as a protection against destruction of the plant stem, such as by fire. Other woody plants may develop basal burls as a similar survival strategy, often as a response to coppicing or other environmental stressors. However, lignotubers are specifically part of the normal course of development of the plants that possess them, and often develop early on in growth. The crown contains buds from which new stems may sprout, as well as stores of starch that can support a period of growth in the absence of photosynthesis. The term "lignotuber" was coined in 1924 by Australian botanist Leslie R. Kerr. Plants possessing lignotubers include many species in Australia: ''Eucalyptus marginata'' (Jarrah), ''Eucalyptus brevifolia'' (snappy gum) and ''Eucalyptus ficifolia'' (scarlet gum) all of which can have lignotubers wide and deep, as well as most mallees (where it is also known as a mallee root) and many ''Banksia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedicel (botany)
In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absence of a pedicel, the flowers are described as sessile. Pedicel is also applied to the stem of the infructescence. The word "pedicel" is derived from the Latin ''pediculus'', meaning "little foot". The stem or branch from the main stem of the inflorescence that holds a group of pedicels is called a peduncle. A pedicel may be associated with a bract or bracts. In cultivation In Halloween types of pumpkin or squash plants, the shape of the pedicel has received particular attention because plant breeders are trying to optimize the size and shape of the pedicel for the best "lid" for a "jack-o'-lantern". Gallery File:Asclepias amplexicaulis.jpg, Long pedicels of clasping milkweed with a single peduncle File:314 Prunus avium.jpg, Cherr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umbels
In botany, an umbel is an inflorescence that consists of a number of short flower stalks (called pedicels) that spread from a common point, somewhat like umbrella ribs. The word was coined in botanical usage in the 1590s, from Latin ''umbella'' "parasol, sunshade". The arrangement can vary from being flat-topped to almost spherical. Umbels can be simple or compound. The secondary umbels of compound umbels are known as umbellules or umbellets. A small umbel is called an umbellule. The arrangement of the inflorescence in umbels is referred to as umbellate, or occasionally subumbellate (almost umbellate). Umbels are a characteristic of plants such as carrot, parsley, dill, and fennel in the family Apiaceae; ivy, ''Aralia'' and ''Fatsia'' in the family Araliaceae; and onion (''Allium'') in the family Alliaceae. An umbel is a type of indeterminate inflorescence. A compressed cyme, which is a determinate inflorescence, is called umbelliform if it resembles an umbel. Gallery File:C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Robert Barker
William (Bill) Robert Barker is an Honorary Research Associate of the State Herbarium of South Australia. He is a former Chief Botanist of the State Herbarium. With Robyn Mary Barker and Laurence Haegi he had a particular interest in ''Hakea'' in the family Proteaceae. He was also involved in taxonomic revisions of ''Lawrencia'', ''Lasiopetalum'' and ''Spyridium''. In his retirement he is presently involved in outstanding research work, finalising revisions and publications. Dr. Barker is a life member and is the current President of the Australasian Systematic Botany Society Australasian is the adjectival form of Australasia, a geographical region including Australia, New Zealand, and New Guinea. Australasian may also refer to: Institutions Commercial * Australasian Correctional Management, private company running .... His primary research expertise is in Biodiversity discovery, Species and populations and Ecological processes. Selected publications * * * References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adelaide Botanic Garden
The Adelaide Botanic Garden is a public garden at the north-east corner of the Adelaide city centre, in the Adelaide Park Lands. It encompasses a fenced garden on North Terrace, Adelaide, North Terrace (between Lot Fourteen, the site of the old Royal Adelaide Hospital, and the National Wine Centre of Australia, National Wine Centre) and behind it the Botanic Park, Adelaide, Botanic Park (adjacent to the Adelaide Zoo). Work was begun on the site in 1855, with its official opening to the public on 4 October 1857. The Adelaide Botanic Garden and adjacent State Herbarium of South Australia, together with the Wittunga Botanic Garden and Mount Lofty Botanic Garden, comprise the ''Botanic Gardens of South Australia'', administered by the Board of the Botanic Gardens and State Herbarium, a state government statutory authority. Early history From the first official survey carried out for the map of Adelaide, William Light, Colonel William Light intended for the planned city to have a "b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botanical Nomenclature
Botanical nomenclature is the formal, scientific naming of plants. It is related to, but distinct from Alpha taxonomy, taxonomy. Plant taxonomy is concerned with grouping and classifying plants; botanical nomenclature then provides names for the results of this process. The starting point for modern botanical nomenclature is Carl Linnaeus, Linnaeus' ''Species Plantarum'' of 1753. Botanical nomenclature is governed by the ''International Code of Nomenclature for algae, fungi, and plants'' (''ICN''), which replaces the ''International Code of Botanical Nomenclature'' (''ICBN''). Fossil plants are also covered by the code of nomenclature. Within the limits set by that code there is another set of rules, the ''International Code of Nomenclature for Cultivated Plants, International Code of Nomenclature for Cultivated Plants (ICNCP)'' which applies to plant cultivars that have been deliberately altered or selected by humans (see cultigen). History and scope Botanical nomenclature has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hakea Macraeana
''Hakea macraeana'', commonly known as the willow needlewood or Macrae's hakea, is a species of shrub native to eastern Australia. The species was first formally described by botanist Ferdinand von Mueller in 1886 in the ''Australian Journal of Pharmacy''. The species name honours one George Macrae, who aided the original collector William Baeuerlen. ''Hakea macraeana'' grows as a shrub or small tree anywhere from 1 to 7.5 or 10 m (4–25 (35) ft) tall, and has drooping branches and needle-like leaves, which range from long, and are soft but tipped with a sharp point. The white or cream-white inflorescences appear along the stems from August to October, and are composed of two to six individual small flowers. Flowering is followed by the development of oval-shaped woody seed pods. Warty and brown, they are long and wide. Each contains two dark grey or dark brown seeds which are long and bear a membranous "wing". The range is the south coast and southern tablelands of New Sout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorrigo, New South Wales
Dorrigo, a small town on the Waterfall Way, is located on the Northern Tablelands, in northern New South Wales, Australia. The town is part of Bellingen local government area. It is approximately north of the state capital, Sydney via the Pacific Highway, and west from the coastal city of Coffs Harbour. The town is situated on the Dorrigo Plateau near the New England Escarpment, which is part of the Great Dividing Range. Dorrigo is above sea level. At the 2016 census, Dorrigo had a population of 1,042 people. History The area now known as Dorrigo lies on the traditional land of the Gumbainggir people. European settlement of the area followed on from the early timber cutters in the 1860s. The first official European in the district was Land Commissioner Oakes who sighted the mouth of the Bellinger River. Dorrigo is derived from the Aboriginal word, ''dondorrigo'' or Dandarrga, meaning "stringy-bark". For many decades it was believed that explorer and settler Major Edward ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depauperate
A depauperate ecosystem is an ecosystem which is lacking in numbers or variety of species, often because it lacks enough stored chemical elements and resources required for life. Thus, depauperate ecosystems often cannot support rapid growth of flora and fauna, high biomass density, and high biological diversity."Environmental Science: Earth as a Living Planet", Daniel B. Botkin, Edward A. Keller, Fifth Edition, p. 186, An urchin barren is an example of a depauperate ecosystem. As it is a biological community of interacting organisms and their physical environment, when such ecosystem is depauperate, it means that the area is poor in ecological resources, both in quantity and diversity. An example of a depauperate environment is Muirfield Seamount The Muirfield Seamount is a submarine mountain located in the Indian Ocean approximately 130 kilometres (70 nautical miles) southwest of the Cocos (Keeling) Islands. The Cocos Islands are an Australian territory, and therefore the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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