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Banksia Seminuda
''Banksia seminuda'', commonly known as the river banksia, is a tree in the plant genus ''Banksia''. It is found in south west Western Australia from Dwellingup (32°42′ S) to the Broke Inlet east of Denmark (34°57′ S). It is often mistaken for, and was originally considered a subspecies of, the '' Banksia littoralis'' (Swamp Banksia). Stephen Hopper described the subspecies ''remanens'' as a short-leaved shrubby form found in the coastal sands below granite outcrops in the Walpole-Nornalup National Park, however George does not feel this form warrants taxonomic recognition as it lies within the normal variability of the species and there was no clear distinction between it and the other populations of ''B. seminuda''. Description The river banksia generally grows as a tree up to 25 metres (80 ft) tall with a usually brown to grey trunk covered with a hard grey furrowed bark. The tree trunk is often straight and tall as the species gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Barker, Western Australia
Mount Barker is a town on Albany Highway and the administrative centre of the Shire of Plantagenet in the Great Southern region of Western Australia. At the 2021 census, Mount Barker had a population of 2,855. The town was named after the nearby hill, which in turn was named in 1829 by Thomas Braidwood Wilson in honour of Captain Collet Barker, who was in command of Western Australia's original British settlement at King George's Sound from 1829 to 1831. __TOC__ Location Mount Barker is situated on Albany Highway, southeast of Perth and north of the city of Albany. The coastal town of Denmark is around by road to the southwest via the Denmark to Mount Barker Road. The timber town of Manjimup is west of Mount Barker, via Muirs Highway. The Hay River, which flows into Wilson Inlet at Denmark, begins its journey just west of Mount Barker. History Prior to European settlement, small groups of Aboriginal people, called the Bibbulmun (a clan of the Noongar) People, inh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Genus Banksia L
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with pronouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of pronoun ''thee'') when followed by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Brownii
''Banksia brownii'', commonly known as feather-leaved banksia or Brown's banksia, is a species of shrub that grows in southwest Western Australia. A plant with fine feathery leaves and large red-brown flower spikes, it usually grows as an upright bush around two metres (7 ft) high, but can also occur as a small tree or a low spreading shrub. First collected in 1829 and published the following year, it is placed in ''Banksia'' subgenus ''Banksia'', section ''Oncostylis'', series ''Spicigerae''. There are two genetically distinct forms. ''Banksia brownii'' occurs naturally only in two population clusters between Albany and the Stirling Range in southwest Western Australia. In the Stirling Range it occurs among heath on rocky mountain slopes; further south it occurs among jarrah woodland in shallow nutrient-poor sand. It has been evaluated as critically endangered by the International Union for Conservation of Nature (IUCN); all major populations care threatened by ''P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Occidentalis
''Banksia occidentalis'', commonly known as the red swamp banksia, is a species of shrub or small tree that is endemic to the south coast of Western Australia. It has smooth bark, linear, sparsely serrated leaves, golden flowers in a cylindrical spike, and later up to sixty follicles in each spike. Description ''Banksia occidentalis'' is a shrub or small tree that typically grows to a height of and has smooth bark but does not form a lignotuber. The leaves are linear, sparsely serrated, whorled, long, wide on a petiole long. The flowers are arranged in a cylindrical spike long and wide at flowering. The flowers are gold-coloured with red styles, the perianth long and the pistil long and hooked. Flowering occurs from April to May or from August to November or January and the follicles are elliptical, long, high and wide. Up to sixty follicles form in each spike, the old flowers having fallen. Taxonomy and naming ''Banksia occidentalis'' was first formally describe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Systematic Botany
''Australian Systematic Botany'' is an international peer-reviewed scientific journal published by CSIRO Publishing. It is devoted to publishing original research, and sometimes review articles, on topics related to systematic botany, such as biogeography, taxonomy and evolution. The journal is broad in scope, covering all plant, algal and fungal groups, including fossils. First published in 1978 as ''Brunonia'', the journal adopted its current name in 1988. The current editor-in-chief is Daniel Murphy ( Royal Botanic Gardens Melbourne). Abstracting and indexing The journal is abstracted and indexed in BIOSIS, CAB Abstracts, Current Contents (Agriculture, Biology & Environmental Sciences), Elsevier BIOBASE, Kew Index, Science Citation Index and Scopus. Impact factor According to the ''Journal Citation Reports'', the journal has a 2015 impact factor of 0.648. References External links * Australian Systematic Botanyat SCImago Journal Rank Australian Systematic Botan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organisms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyphyletic
A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of convergent evolution. The arrangement of the members of a polyphyletic group is called a polyphyly .. ource for pronunciation./ref> It is contrasted with monophyly and paraphyly. For example, the biological characteristic of warm-bloodedness evolved separately in the ancestors of mammals and the ancestors of birds; "warm-blooded animals" is therefore a polyphyletic grouping. Other examples of polyphyletic groups are algae, C4 photosynthetic plants, and edentates. Many taxonomists aim to avoid homoplasies in grouping taxa together, with a goal to identify and eliminate groups that are found to be polyphyletic. This is often the stimulus for major revisions of the classification schemes. Researchers concerned more with ecology than with systema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladogram
A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed, so many differing evolutionary trees can be consistent with the same cladogram. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor (not an actual entity) which can be inferred to exhibit the traits shared among the terminal taxa above it. This hypothetical ancestor might then provide clues about the order of evolution of various features, adaptation, and other evolutionary narratives about ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladistics
Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups (" clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived characteristics ( synapomorphies'')'' that are not present in more distant groups and ancestors. However, from an empirical perspective, common ancestors are inferences based on a cladistic hypothesis of relationships of taxa whose character states can be observed. Theoretically, a last common ancestor and all its descendants constitute a (minimal) clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if the terms ''worms'' or ''fishes'' were used within a ''strict'' cladistic framework, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a 'grade', which are fruitless to precisely delineate, especially when including extinct species. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pauline Ladiges
Pauline Yvonne Ladiges (born 1948) is a botanist whose contributions have been significant both in building the field of taxonomy, ecology and historical biogeography of Australian plants, particularly Eucalypts and flora, and in science education at all levels. She is professorial fellow in the School of Botany at the University of Melbourne, where she has previously held a personal chair and was head of the School of Botany at the University of Melbourne from 1992 to 2010. She has been a fellow of the Australian Academy of Science since 2002. Early life and education Pauline Yvonne Ladiges was born in Bolton, England in 1948. She was educated at the University of Melbourne, completing a Diploma of Education in 1971 and a Master of Science the following year for her thesis, "A population study of ''Eucalyptus viminalis''". In 1976 she graduated with a PhD from the same university for her thesis, "Studies of population differentiation in ''Eucalyptus viminalis'' Labill., in r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kevin Thiele
Kevin R. Thiele is currently an adjunct associate professor at the University of Western Australia and the director of Taxonomy Australia. He was the curator of the Western Australian Herbarium from 2006 to 2015. His research interests include the systematics of the plant families Proteaceae, Rhamnaceae and Violaceae, and the conservation ecology of grassy woodland ecosystems. He also works in biodiversity informatics, developing and teaching the development of interactive multi-access keys, and has been involved in the design of software for the Global Biodiversity Information Facility. He obtained a PhD from the University of Melbourne in 1993, and has since published many papers, notably a treatment of the Rhamnaceae for the ''Flora of Australia'' series of monographs, and, with Pauline Ladiges, a taxonomic arrangement of ''Banksia''. In 2007 he collaborated with Austin Mast to transfer ''Dryandra'' to ''Banksia ''Banksia'' is a genus of around 170 species in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Seminuda 300912 2a
''Banksia'' is a genus of around 170 species in the plant family Proteaceae. These Australian wildflowers and popular garden plants are easily recognised by their characteristic flower spikes, and fruiting "cones" and heads. ''Banksias'' range in size from prostrate woody shrubs to trees up to 30 metres (100 ft) tall. They are found in a wide variety of landscapes: sclerophyll forest, (occasionally) rainforest, shrubland, and some more arid landscapes, though not in Australia's deserts. Heavy producers of nectar, ''banksias'' are a vital part of the food chain in the Australian bush. They are an important food source for nectarivorous animals, including birds, bats, rats, possums, stingless bees and a host of invertebrates. Further, they are of economic importance to Australia's nursery and cut flower industries. However, these plants are threatened by a number of processes including land clearing, frequent burning and disease, and a number of species are rare and endangered. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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