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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Allocasuarina portuensis ： ウィキペディア英語版 Allocasuarina portuensis ''Allocasuarina portuensis'', commonly known as the Nielsen Park She-Oak, is an extremely rare plant growing in Sydney, Australia. Encountered as a shrub or small slender tree, up to 5 metres (16 ft) tall, it has green drooping branchlets up to 27 cm (11 in) in length.〔(【引用サイトリンク】work=PlantNET - NSW Flora Online )〕 It is dioecious, that is, male and female flowers are borne on separate plants.〔 Measuring 1.2–1.5 cm (0.5-0.6 in) long and 0.8–1 cm wide, the cones are perched on 0.2–1.5 cm long peduncles arising from the branchlets.〔 The plant was discovered by Amanda Lee Johnson a NPWS Horticulturist whom worked at Sydney Harbour National Park. It was officially described by Lawrie Johnson in 1989. The specific epithet ''portuensis'' is from the Latin, meaning “inhabiting a port”, as this species was originally found at Port Jackson.〔Les Robinson - Field Guide to the Native Plants of Sydney, ISBN 978-0-7318-1211-0 page 151〕 It most resembles ''Allocasuarina rigida'' and ''A. distyla'' and can be distinguished by differences in the male flowers.〔 ''A. portuensis'' was originally identified in 1986 from ten specimens at Nielsen Park, in the city's eastern suburbs. Those original plants have now died. However, efforts to propagate and reintroduce the species began from the time it was identified, and plants were planted at several locations around Nielsen Park and nearby Gap Bluff and Hermit Point. 54 of these remained alive in 2000. The original habitat was forest over sandstone-based soils, with canopy trees such as Port Jackson fig (''Ficus rubiginosa''), smooth-barked apple (''Angophora costata''), blueberry ash (''Elaeocarpus reticulatus'') and cheese tree (''Glochidion ferdinandi''). The understory consists of ''Pittosporum revolutum'', ''Kunzea ambigua'' and ''Monotoca elliptica''.〔(【引用サイトリンク】work=Threatened Species of New South Wales )〕 The original range is unknown, as so much of the nearby bush has been cleared.〔 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Allocasuarina portuensis」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.