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George's Taxonomic Arrangement Of Dryandra
Alex George's taxonomic arrangement of ''Dryandra'' was the first modern-day arrangement of that taxon. First published in ''Nuytsia'' in 1996, it superseded the arrangement of George Bentham, which had stood for over a hundred years; it would later form the basis for George's 1999 treatment of ''Dryandra'' for the ''Flora of Australia''. In accordance with contemporary thinking, George treated ''Dryandra'' as a genus, dividing it into three subgenera, the largest of which was divided into 24 series. The arrangement stood until 2007, when ''Dryandra'' was transferred into ''Banksia'' as ''B.'' ser. ''Dryandra''. No alternative has yet been proposed. Background The dryandras are a group of 94 species in the plant family Proteaceae. Endemic to south-west Western Australia, they grow in forms varying from prostrate shrubs to small trees. ''Dryandra'' was originally published at genus rank in 1810, and was still considered a genus in the 1990s when George published his infra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryandra Sessilis 2 Cape Naturaliste Email
''Banksia'' ser. ''Dryandra'' is a series of 94 species of shrub to small tree in the plant genus ''Banksia''. It was considered a separate genus named ''Dryandra'' until early 2007, when it was merged into ''Banksia'' on the basis of extensive molecular and morphological evidence that ''Banksia'' was paraphyletic with respect to ''Dryandra''. Taxonomy The dryandras were named in honour of Swedish botanist Jonas C. Dryander. The first specimens of a ''Dryandra'' were collected by Archibald Menzies, surgeon and naturalist to the Vancouver Expedition. At the request of Joseph Banks, Menzies collected natural history specimens wherever possible during the voyage. During September and October 1791, while the expedition were anchored at King George Sound, he collected numerous plant specimens, including the first specimens of '' B. sessilis'' (Parrotbush) and '' B. pellaeifolia''. Upon Menzies' return to England, he turned his specimens over to Banks; as with most other spe ... [...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 Pallida
''Banksia pallida'' is a species of column-shaped shrub that is endemic to the south-west of Western Australia. It has densely hairy stems, linear leaves with three to five serrations on each side, pale yellow flowers in heads of up to eighty and egg-shaped to elliptical follicles. Description ''Banksia pallida'' is a column-shaped shrub that typically grows to a height of and has densely hairy stems but does not form a lignotuber. The leaves are broadly linear, mostly long and wide on a petiole long, with between three and five triangular lobes up to long on each side. The flowers are pale yellow and arranged in heads of between sixty-five and eighty with narrow lance-shaped involucral bracts long at the base of the head. The perianth is long and the pistil long and strongly curved. Flowering occurs from May to June and the follicles are egg-shaped to elliptical and long. Taxonomy and naming This species was first formally described in 1996 by Alex George who gave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Hirta
''Banksia hirta'' is a species of shrub that is endemic to Western Australia. It has hairy stems, deeply serrated leaves, pale yellow flowers in heads of about one hundred and shining follicles. It is restricted to the Stirling Range National Park. Description ''Banksia hirta'' is a shrub that typically grows to a height of and has hairy stems but does not form a lignotuber. The leaves are lance-shaped to narrow egg-shaped with the narrower end towards the base, and deeply serrated, long and wide on a petiole long. There are between five and ten sharply-pointed, triangular lobes on each side of the leaves. The flowers are arranged in heads of between 90 and 110 with woolly-hairy, linear to lance-shaped involucral bracts long at the base of the head. The flowers have a pale yellow perianth long and a cream-coloured pistil long. Flowering occurs from May to October and the follicles are egg-shaped, long and shiny with only a few hairs. Taxonomy and naming This banksia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Arborea
''Banksia arborea'', commonly known as Yilgarn dryandra, is a species of tree that is endemic to Western Australia. It has serrated, sharply pointed leaves, and yellow flowers and is found inland north of Southern Cross. Description ''Banksia arborea'' is a tree that typically grows to a height of and has a thick trunk. Its leaves are elliptical to lance-shaped, long, wide and serrated with up to six sharply pointed triangular teeth on each side. The flower spikes are borne on the ends of branches and are composed of between 110 and 180 individual flowers. The perianth is long and yellow with shaggy hairs. Flowering mainly occurs between March and May, or in September or October and the fruit is an egg-shaped follicle long that opens when mature. Taxonomy and naming Yilgarn dryandra was first formally described in 1964 by Charles Gardner who gave it the name ''Dryandra arborea'' in the ''Journal of the Royal Society of Western Australia'' from specimens he collected on hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Prionophylla
''Banksia prionophylla'' is a shrub endemic to Western Australia. Known only from a single population of around 70 plants in a remote part of Western Australia, it is considered rare but not endangered. It was first discovered in 2001, and published under the genus '' Dryandra'' in 2005, before being transferred into ''Banksia'' in 2007. Description It is a lignotuberous shrub that grows to a height of from 50 to 70 centimetres. It has erect leaves with woolly undersides, nine to fifteen centimetres long, and twelve to eighteen millimetres wide. As with other dryandras, it has a dome-shaped inflorescence. ''B. prionophylla''s inflorescence is terminal on a branch, and consists of around 60 greenish-pink flowers. Taxonomy First collected by Fred and Jean Hort on 10 October 2001, further collections were made in July 2002 by them, together with Alex George and Margaret Pieroni. For some time it was referred to by the interim name ''Dryandra'' sp. Cataby (F.Hort 1779). A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Armata Var
''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] |
Banksia Armata
''Banksia armata'', commonly known as prickly dryandra, is a species of often sprawling shrub that is endemic to Western Australia. It has deeply serrated leaves with sharply pointed lobes and spikes of about 45 to 70 yellow flowers. Description ''Banksia armata'' grows as a sprawling, spreading or upright shrub that typically grows to a height of and sometimes forms a lignotuber. It has deeply serrated leaves that are long and wide with five to thirteen sharply pointed, wedge-shaped to narrow egg-shaped lobes on each side. The flowers are arranged in spikes of between 45 and 70, each flower with a yellow, sometimes pink perianth long. Flowering occurs from June to November and the fruit is an egg-shaped follicle long. Taxonomy Specimens of ''B. armata'' were first collected at King George Sound in December 1801 by Robert Brown. Brown published a description of the species in 1810 in ''Transactions of the Linnean Society of London'' naming it ''Dryandra armata''. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Fuscobractea
''Banksia fuscobractea'', commonly known as the dark-bract banksia, is a species of shrub that is endemic to a small area in the south-west of Western Australia. It has prickly, serrated, wedge-shaped leaves, pale yellow and cream-coloured flowers in heads of up to almost two hundred, and three or four egg-shaped follicles in each head. Description ''Banksia fuscobractea'' is an erect shrub that typically grows to a height of and has stems covered in thick, matted hairs, but does not form a lignotuber. Its leaves are wedge-shaped in outline, long and wide on a petiole long, with between four and nine sharply-pointed serrations on each side. The flowers are borne on a head containing between 180 and 190 flowers. There are linear involucral bracts long at the base of the head. The flowers have a pale yellow perianth long and a cream-coloured pistil long. Flowering occurs from July to October and the fruit is an egg-shaped, loosely-hairy follicle long. Each head has only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Obovata
''Banksia obovata'', commonly known as wedge-leaved dryandra, is a species of shrub that is endemic to Western Australia. It has hairy stems, serrated, wedge-shaped to egg-shaped leaves with the lower end towards the base, cream-coloured or pale yellow flowers in heads of up to 100, and egg-shaped follicles. It is found in near-coastal areas in the south of the state. Description ''Banksia obovata'' is a shrub that typically grows to a height of but does not form a lignotuber. It has wedge-shaped to egg-shaped leaves with the narrower end at the base, long and wide on a petiole up to long, with between four and twelve serrations on each side. Between thirty-five and one hundred cream-coloured or pale yellow flowers are borne in a head with linear to egg-shaped involucral bracts up to long at the base of the head. The perianth is long and the pistil long. Flowering occurs mainly occurs from April to November, but also in other months and the follicles are egg-shaped, l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksia Sessilis Var
''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] |
Banksia Sessilis
''Banksia sessilis'', commonly known as parrot bush, is a species of shrub or tree in the plant genus ''Banksia'' of the family Proteaceae. It had been known as ''Dryandra sessilis'' until 2007, when the genus '' Dryandra'' was sunk into ''Banksia''. The Noongar peoples know the plant as budjan or butyak. Widespread throughout southwest Western Australia, it is found on sandy soils over laterite or limestone, often as an understorey plant in open forest, woodland or shrubland. Encountered as a shrub or small tree up to in height, it has prickly dark green leaves and dome-shaped cream-yellow flowerheads. Flowering from winter through to late spring, it provides a key source of food—both the nectar and the insects it attracts—for honeyeaters in the cooler months, and species diversity is reduced in areas where there is little or no parrot bush occurring. Several species of honeyeater, some species of native bee, and the European honey bee seek out and consume the nectar, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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