{"id":985,"date":"2017-11-14T18:30:55","date_gmt":"2017-11-14T09:30:55","guid":{"rendered":"http:\/\/www.nibb.ac.jp\/plantdic\/blog\/?p=985"},"modified":"2017-11-14T18:30:55","modified_gmt":"2017-11-14T09:30:55","slug":"lodoicea-maldivica-double-coconut-coco-de-mer-%e3%82%aa%e3%82%aa%e3%83%9f%e3%83%a4%e3%82%b7-%e3%83%95%e3%82%bf%e3%82%b4%e3%83%a4%e3%82%b7","status":"publish","type":"post","link":"https:\/\/www.nibb.ac.jp\/plantdic\/blog\/?p=985","title":{"rendered":"Lodoicea maldivica, double coconut, Coco de Mer, \u30aa\u30aa\u30df\u30e4\u30b7, \u30d5\u30bf\u30b4\u30e4\u30b7"},"content":{"rendered":"

<\/p>\n

\u30aa\u30aa\u30df\u30e4\u30b7\u306f\u30a4\u30f3\u30c9\u6d0b\u306b\u3042\u308b\u30bb\u30fc\u30b7\u30a7\u30eb\u5171\u548c\u56fd\u306e\u3044\u304f\u3064\u304b\u306e\u5cf6\u306b\u5206\u5e03\u3057\u3066\u3044\u305f\u304c\u3001\u73fe\u5728\u306f\u30d7\u30e9\u30e9\u30f3Praslin\u5cf6\u3068\u30ad\u30e5\u30ea\u30e5\u30fc\u30baCurieuse\u5cf6\u306e\u307f\u306b\u81ea\u751f\u3059\u308b(Dransfield et al. 2008)\u3002\u6a39\u9ad8\u304c\u9ad8\u3044\u3082\u306e\u3067\u306f30\u30e1\u30fc\u30c8\u30eb\u306b\u3082\u306a\u308b(Edwards et al. 2002) \u3002<\/p>\n

Lodoicea maldivica<\/em> is distributed in some islands in the Seychelles but now only in the Pralsin and Curieuse islands (Dransfield et al. 2008). The height reaches up to 30 m (Edwards et al. 2002).<\/p>\n

 <\/p>\n

<\/p>\n

\u96cc\u96c4\u7570\u682a\u3067\u679c\u5b9f\u306f\u719f\u3059\u306e\u306b\uff16\uff0c\uff17\u5e74\u3092\u8981\u3059\u308b (Edwards et al. 2002)\u3002<\/p>\n

Lodoicea maldivica<\/em> is dioecious and fruits take six to seven years to mature (Edwards et al. 2002).<\/p>\n

 <\/p>\n

<\/p>\n

\u679c\u5b9f\u306f20 kg\u3001\u305d\u306e\u4e2d\u306b\u901a\u5e38\uff11\u3064\u542b\u307e\u308c\u308b\u7a2e\u5b50\u306f\u7d0410 kg\u3042\u308a\u3001\u4e16\u754c\u6700\u5927\u306e\u7a2e\u5b50\u3067\u3042\u308b(Edwards et al. 2002) \u3002\u7a2e\u5b50\u306f\u91cd\u304f\u3001\u6c34\u306b\u6c88\u3080\u306e\u3067\u6d77\u6d41\u306a\u3069\u306b\u3088\u3063\u3066\u5206\u5e03\u3092\u5e83\u3052\u308b\u3053\u3068\u306f\u96e3\u3057\u3044\u3068\u8003\u3048\u3089\u308c\u308b\u304c\u3001\u3044\u304f\u3064\u304b\u306e\u5cf6\u306b\u5206\u5e03\u3057\u3066\u3044\u308b\u306e\u306f\u3069\u3046\u3057\u3066\u306a\u306e\u3060\u308d\u3046\u304b\u3002<\/p>\n

Fruits and seeds are approximately 20 kg and 10 kg, respectively and the largest seed in seed plants (Edwards et al. 2002). However, it is curious how Lodoicea maldivica <\/i>expanded its distribution to some islands, since fruits and seeds are too heavy to float on the sea.<\/p>\n

\"\"<\/p>\n

\u7a2e\u5b50\u306e\u7aaa\u307f\u304b\u3089\u767a\u82bd\u3059\u308b\u3068\u3001\u5b50\u8449\u306e\u5148\u7aef\u304c\u7a2e\u5b50\u306e\u4e2d\u306b\u5438\u5668\u3068\u3057\u3066\u6b8b\u308a\u30014\u5e74\u307b\u3069\u7a2e\u5b50\u304b\u3089\u6804\u990a\u3092\u5f97\u7d9a\u3051\u308b\uff08Edwards et al. 2002)\u3002\u5927\u304d\u306a\u7a2e\u5b50\u304b\u3089\u9577\u671f\u9593\u306b\u308f\u305f\u3063\u3066\u6804\u990a\u3092\u5f97\u308b\u3053\u3068\u3067\u3001\u5c11\u306a\u304f\u3068\u3082\u4ee5\u4e0b\u306e\uff12\u3064\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u8003\u3048\u3089\u308c\u308b (Edwards et al. 2002)\u3002\u4e00\u3064\u76ee\u306f\u3001\u5b50\u8449\u306e\u5148\u7aef\u5074\u304c\u3001\u9577\u3044\u3082\u306e\u306710 m\u3082\u4f38\u3073\u3066\u89aa\u304b\u3089\u96e2\u308c\u305f\u3068\u3053\u308d\u306b\u82bd\u751f\u3048\u3092\u4f5c\u308c\u308b\u3053\u3068\u3067\u3042\u308b\uff08Edwards et al. 2002)\u3002\u4e8c\u3064\u76ee\u306f\u3001\u5927\u304d\u306a\u7a2e\u5b50\u304b\u3089\u306e\u6804\u990a\u306e\u304a\u304b\u3052\u3067\u767a\u82bd\u5f8c\u3059\u3050\u306b1.5 m\u3082\u306e\u5927\u304d\u306a\u8449\u3092\u4f5c\u308c\u308b\u3053\u3068\u3067\u3042\u308b(Edwards et al. 2002)\u3002\u5cf6\u306b\u751f\u80b2\u3059\u308b\u30d5\u30bf\u30b4\u30e4\u30b7\u306f\u3001\u9060\u304f\u306b\u7a2e\u5b50\u3092\u98db\u3070\u3057\u3066\u7e41\u6b96\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u6563\u5e03\u306b\u9069\u3057\u305f\u7a2e\u5b50\u3092\u4f5c\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4e0a\u8a18\u4e8c\u3064\u306e\u6226\u7565\u3067\u81ea\u5206\u306e\u89aa\u3084\u5144\u5f1f\u3092\u542b\u3081\u305f\u5468\u308a\u306e\u690d\u7269\u3068\u306e\u7af6\u4e89\u306b\u52dd\u3064\u305f\u3081\u3001\u7a2e\u5b50\u304c\u3069\u3093\u3069\u3093\u5de8\u5927\u5316\u3057\u3066\u3044\u3063\u305f\u3068\u63a8\u5b9a\u3055\u308c\u3066\u3044\u308b(Edwards et al. 2002)\u3002\u56f3\u306e\u7528\u8a9e\u306fTillich (2007)\u306b\u57fa\u3065\u304f\u3002<\/p>\n

After germination from a seed, the cotyledon tip remains in the seed as a haustorium for approximately four years to get nutrients (Edwards et al. 2002). There are two advantages of big seeds. One is to make seedlings distantly from seeds. Cotyledonary hyperphyll elongates and sometimes extends to 10 m (Edwards et al. 2002). At the distance from the seed, the seedling starts to grow. This is advantageous to grow distantly from mother plants and siblings. Another advantage is to be able to make a large leaf even in the early growth phase. The first leaf of Lodoicea maldivica <\/i>extends to 1.5 m high (Edwards et al. 2002). In the island, seeds cannot be dispersed beyond the island and are not necessary to be smaller or suitable for disparsal, therefore, seeds appear to be gigantic to fulfil the above two advantages (Edwards et al. 2002). Terms in the figure is based on Tillich (2007).<\/p>\n

Dransfield J, Uhl NW, Asmussen CB, Baker WJ, Harley MM, Lewis CE. 2008 Genera <\/i>Palmarum<\/i>. London: Kew Publishing, Royal Botanic Gardens, Kew.<\/p>\n

Edwards, P.J., Kollmann, J., and Fleischmann, K. (2002). Life history evolution in Lodoicea maldivica (Arecaceae). Nord. J. Bot. 22,<\/em> 227\u2013237.<\/p>\n

Tillich HJ. (2007) Seedling diversity and the homologies of seedling organs in the order Poales (monocotyledons). Ann. Bot. 100, 1413\u20131429.<\/p>\n

van Houtte, L. (1849) Flore des serres et des jardin de l\u2019Europe. 5, 526.<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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