what is watermelon

西瓜,一種水果

2007-09-26 17:14:26 補充：
西瓜(Watermelon)，學名是Citrullus lanatus，也有學名稱為Citrullus vulgaris，是葫蘆科一種原產於非洲植物或其果實。西瓜是一種有花植物，形狀像藤蔓，葉子呈羽毛狀。它所結出的果實是假果，且屬於植物學家稱為假漿果的一類。果實外皮光滑，呈綠色或黃色有花紋，果瓤多汁為紅色或黃色。西瓜的產量十分豐富，差不多每一株藤就可以結出達100個果實。

西瓜....

n. ( noun )

1. 西瓜

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Watermelon (Citrullus lanatus (Thunb.) Matsum & Nakai, family Cucurbitaceae) refers to both fruit and plant of a vine-like (climber and trailer) herb originally from southern Africa and one of the most common types of melon. This flowering plant produces a special type of fruit known by botanists as a pepo, which has a thick rind (exocarp) and fleshy center (mesocarp and endocarp); pepos are derived from an inferior ovary and are characteristic of the Cucurbitaceae. The watermelon fruit, loosely considered a type of melon (although not in the genus Cucumis), has a smooth exterior rind (green and yellow) and a juicy, sweet, usually red or yellow, but sometimes orange, interior flesh. The flesh consists of highly developed placental tissue within the fruit. The former name Citrullus vulgaris (vulgaris meaning "common" — Shosteck, 1974), is now a synonym of the accepted scientific name for watermelon, Citrullus lanatus.

西瓜.........