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Leach orchids (genus ''Stelis'') is a large group of orchids, with perhaps 500 species. The generic name ''Stelis'' is the Greek word for 'mistletoe', referring to the epiphytic habit of these species. These mainly epiphytic (rarely lithophytic) plants are widely distributed throughout much of South America, Central America, Mexico, the West Indies and Florida.〔(Kew World Checklist of Selected Plant Families )〕 Many of the older species were named by Lindley, Ruiz & Pavon and Reichenbach, while many of the recent species were named by Dr. C. Luer. An orchid of the genus ''Stelis'' was probably the first American orchid ever to be brought to Europe. An herbarium specimen was depicted in 1591 in Tabernaemontanus' herbal book. ==Description== A single oblanceolate leaf develops from narrow, leathery outgrowths from a creeping stem. Most species grow long, dense racemes of small to minute flower in diverse shades of white. Other colors are rare. These flowers are photosensitive, only opening in the sunlight. Some close completely at night. The three symmetrically rounded sepals generally form a triangle with a small central structure, made up of the column, small petals and small lip, though slight variation to this theme does occur. This genus is not common in cultivation. 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「Stelis」の詳細全文を読む スポンサード リンク
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