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|synonyms_ref = 〔(【引用サイトリンク】title=The Plant List: A Working List of All Plant Species )〕 |}} ''Lodoicea'', commonly known as the sea coconut, coco de mer, or double coconut, is a monotypic genus in the palm family. The sole species, ''Lodoicea maldivica'', is endemic to the islands of Praslin and Curieuse in the Seychelles. It formerly also was found on the small islets of St Pierre, Chauve-Souris and Ile Ronde (Round Island), all located near Praslin, but has become extinct there. The name of the genus, ''Lodoicea'', is derived from ''Lodoicus'', the Latinised form of ''Louis'', in honour of King Louis XV of France. ==Description== The tree grows to 25–34 m tall. The leaves are fan-shaped, 7–10 m long and 4.5 m wide with a 4 m petiole. It is dioecious, with separate male and female plants. The male flowers are catkin-like, up to 1 m long. The mature fruit is 40–50 cm in diameter and weighs 15–30 kg, and contains the largest seed in the plant kingdom. The fruit, which requires 6–7 years to mature and a further two years to germinate, is sometimes also referred to as the sea coconut, love nut, double coconut, coco fesse, or Seychelles nut. While the functional characteristics of ''Lodoicea'' are similar to other trees of monodominant forests in the humid tropics, its unique features include a huge seed, effective funnelling mechanism and diverse community of closely associated animals. These attributes suggest a long evolutionary history under relatively stable conditions.〔Peter J. Edwards, Frauke Fleischer-Dogley and Christopher N. Kaiser-Bunbury (2015) The nutrient economy of ''Lodoicea maldivica'', a monodominant palm producing the world's largest seed, in ''New Phytologist'', Article first published online: 23 JAN 2015. DOI: 10.1111/nph.13272〕 Of the six monospecific endemic palms in Seychelles, ''Lodoicea'' is the "only true case of island gigantism among Seychelles flowering plants, a unique feature of Seychelles vegetation" (Proctor, 1984). It holds three botanical records: the largest fruit so far recorded weighed 42 kg, the mature seeds weighing up to 17.6 kg are the world's heaviest,〔〔〔Wise, 1998〕 and the female flowers are the largest of any palm.〔〔 Of the six endemic palms it is the only dioecious species, with male and female flowers located on different plants.〔Edwards, Kollmann & Fleischmann's selective review of the biology of the species (2002)〕 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「Lodoicea」の詳細全文を読む スポンサード リンク
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