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在美國南加州,仙人掌植物世界四處可見,但集中觀賞的地方卻不多見。落杉磯市的帕薩丁娜區裏的亨廷峒博物園收集算是很全麵,飄俠一直很喜歡這些能在沙漠中生長開花的堅強生命!現把自己拍攝到的仙人掌和仙人球的美姿倩影分享於朋友們。
仙人掌科仙人掌屬植物仙人掌Opuntia dillenii 【別名】仙巴掌、霸王樹、火焰、火掌、玉芙蓉
仙人掌科植物是個大家族,它的成員至少在兩千種以上。它的故鄉在美洲和非洲,其中尤以墨西哥分布的種類最多,素有“仙人掌王國”之稱,仙人掌被墨西哥人譽為“仙桃”。(我國雲南少數民族地區也有把仙人掌果作為水果的習慣)。當地有個優美的傳說:一隻巨大的山鷹叼著一條蛇,為尋找棲身之地,到處飛翔。當它落到一叢開滿黃花的仙人掌上後,再也不願離開。從此,墨西哥人便在這以富有生機的地方建立起自己的家園——墨西哥城。墨西哥國徽上的圖案就是以這個傳說為依據的。
仙人掌大多生長在幹旱的環境裏。有的呈柱形,高10多米,重量約兩三萬斤,巍然屹立,甚為壯觀。一些長著棘刺的仙人球,有的壽命高達五百年以上,可長成直徑兩三米的巨球,人們劈開它的上部,挖食柔嫩多汁的莖肉解渴充饑。仙人掌類植物還有一種特殊的本領,在幹旱季節,它可以不吃不喝地進入休眠狀態,把體內的養料與水分的消耗降到最低程度。當雨季來臨時,它們又非常敏感地“醒”過來,根係立刻活躍起來,大量吸收水分,使植株迅速生長並很快地開花結果。有些仙人掌類植物的根係變成胡蘿卜狀,可貯存七八十斤水分。曾經有人把一個仙人球包在幹燥的紙袋裏放了兩年多,盡管有些皺縮,但一種到盆裏,澆水後又很快長出了新根,並恢複生長。仙人掌以它那奇妙的結構,驚人的耐旱能力和頑強的生命力,受到人類的賞識。
奇形怪狀的莖,鮮豔的花別看仙人掌的奇形怪狀加上銳利的尖刺,使人望而生畏,但它們開出的花朵卻分外嬌豔,花色豐富多彩。如長鞭狀的“月夜皇後”,開白色的大型花朵,直徑達五六十厘米。被人們喻為“曇花一現”的曇花,就是原產中、南美洲熱帶森林中一種附生類型的仙人掌類植物。
仙人掌以花取勝還隻是培養者喜愛它的一個原因,而形狀、顏色各不相同的刺叢與絨毛也受到許多觀賞者的寵愛。尤其是一些鮮紅、金黃的刺叢與雪白的絨毛品種,更是千姿百態。難怪有人稱它們為“ 有生命的工藝品”呢。
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