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Nelson's taxonomic arrangement of Adenanthos
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Nelson's taxonomic arrangement of Adenanthos : ウィキペディア英語版
Nelson's taxonomic arrangement of Adenanthos

Ernest Charles Nelson's taxonomic arrangement of ''Adenanthos'' was the first modern-day arrangement of that plant genus. First published in his 1978 ''Brunonia'' article "A taxonomic revision of the genus ''Adenanthos'' (Proteaceae)", it superseded the arrangement of George Bentham, which had stood for over a hundred years. It was updated by Nelson in his 1995 treatment for the ''Flora of Australia'' series of monographs.
==Background==
''Adenanthos'' is a genus of around 30 species in the plant family Proteaceae. Endemic to southern Australia, they are evergreen woody shrubs with solitary flowers that are pollinated by birds and, if fertilised, develop into achenes. They are not much cultivated. Common names of species often include one of the terms ''woollybush'', ''jugflower'' and ''stick-in-the-jug''.
The first known botanical collection of ''Adenanthos'' was made by Archibald Menzies during the September 1791 visit of the Vancouver Expedition to King George Sound on the south coast of Western Australia. However this did not lead to publication of the genus. Jacques Labillardière collected specimens of ''A. cuneatus'' from Esperance Bay the following year, and in 1803 Jean Baptiste Leschenault de la Tour collected the same two species as Menzies had 12 years earlier. Labillardière published the genus in 1805, in his ''Novae Hollandiae Plantarum Specimen'', based on the specimens collected by himself and Leschenault. The genus was given the name ''Adenanthos'' from the Greek αδην (''aden-'', "gland") and ανθοσz (''-anthos'', "flower"), in reference to the prominent nectaries.
By 1870, 13 species had been published. That year, Bentham published a fourteenth species and the first infrageneric arrangement, dividing the genus into two taxonomic sections, ''A.'' sect. ''Eurylaema'' and ''A.'' sect. ''Stenolaema'', based on the shape of the perianth tube: members of ''A.'' sect. ''Eurylaema'' have perianth tubes that are curved and swollen above the middle, whereas members of ''A.'' sect. ''Stenolaena'' have perianth tubes that are straight and unswollen. This arrangement stood for over a hundred years, by which time a number of new species had been discovered, rendering Bentham's treatment "very inadequate and incomplete".〔

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