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There are four commercially grown species of cotton, all domesticated in antiquity: Gossypium hirsutum – upland cotton, native to Central America, Mexico, the Caribbean and southern Florida, (90% of world production) Gossypium barbadense – known as extra-long staple cotton, native to tropical South America (8% of world production) Gossypium arboreum – tree cotton, native to India and Pakistan (less than 2%) Gossypium herbaceum – Levant cotton, native to southern Africa and the Arabian Peninsula (less than 2%) The two New World cotton species account for the vast majority of modern cotton production, but the two Old World species were widely used before the 1900s. While cotton fibers occur naturally in colors of white, brown, pink and green, fears of contaminating the genetics of white cotton have led many cotton-growing locations to ban the growing of colored cotton varieties, which remain a specialty product. G. arboreum and G. herbaceum are referred to as Old World Cotton, whereas G. barbadense and G. hirsutum are called New World Cotton. 〔http://www.nemercantile.com/tutorials/24-the-history-of-cotton〕 Asiatic cotton has fibers less than one inch (2.5 cm) long and rather coarse in texture. It is grown mostly in India, Iran, China, and Russia. Peruvian cotton has fuzzy, almost wool-like fibers. Brazilian cotton is a perennial cotton with long, silky fibers. Levant, Mexican, and Jamaican cottons are wild varieties that may have been the early relatives of some modern varieties. Colored cotton has been produced by some agricultural experimenters, but cloth woven from it tends to fade in strong sunlight. Kapok trees also produce a variety of cotton ("Java cotton") in their seed pods ==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「Types of cotton」の詳細全文を読む スポンサード リンク
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