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量天尺 Hylocereus undatus (Haworth) Britton & Rose

目前为止,中国西南野生生物种质资源库共保藏该物种: DNA材料4份; 离体材料20份;

  • 科:仙人掌科    Cactaceae
  • 属:量天尺属   Hylocereus
  • 种:量天尺   Hylocereus undatus

1形状描述

1. Hylocereus undatus (Haworth) Britton & Rose, Fl. Bermuda. 256. 1918. 量天尺 liang tian chi Cereus undatus Haworth, Philos. Mag. Ann. Chem. 7: 110. 1830.Plants clambering or sprawling. Stems deep green, 3-15 m. Joints 20-50 × 3-8(-12) cm, winged or angled, margins of wings or angles coarsely crenate, horny. Areoles 3-6 cm apart, 2-5 mm in diam. Spines 1-3(-6) per areole, spreading in various directions, gray-brown, conic to subulate, 2-5(-10) mm. Flowers 25-30 × 15-34 cm. Receptacle tube funnelform. Sepaloids with greenish midrib and mostly white margin, lanceolate-linear to linear, 10-15 × 1-1.5 cm, margin entire, apex acuminate, reflexed. Petaloids erect to spreading, white, narrowly oblanceolate, margin entire or erose. Filaments cream, 5-7.5 cm; anthers linear, ca. 4.5 mm. Style cream, 14-20 cm, stout; stigmas 20-24, exserted, 2-2.3 mm, slender. Fruit red, globose to ellipsoid, 7-12.5 × 6-12 cm, with numerous triangular scales, umbilicus small; pulp white. Seeds obovate, ca. 2 × 1 mm. Fl. July-Dec.Trees, rocks, maritime scrub; sea level to 300 m. S Fujian, S Guangdong, SW Guangxi, Hainan, Taiwan [perhaps native to Mexico and Central America; widely introduced and escaped in tropical Asia, E Australia, and South America].This species was first introduced to China in 1645. It is usually cultivated as a hedge, or for its edible fruit. The flower is often eaten in a vegetable soup in S Guangdong.【引自:Flora of China】

攀援肉质灌木,长3-15米,具气根。分枝多数,延伸,具3角或棱,长0.2-0.5米,宽3-8(-12)厘米,棱常翅状,边缘波状或圆齿状,深绿色至淡蓝绿色,无毛,老枝边缘常胼胀状,淡褐色,骨质;小窠沿棱排列,相距3-5厘米,直径约2毫米;每小窠具1-3根开展的硬刺;刺锥形,长2-5 (-10)毫米,灰褐色至黑色。花漏斗状,长25-30厘米,直径15-25厘米,于夜间开放;花托及花托筒密被淡绿色或黄绿色鳞片,鳞片卵状披针形至披针形,长2-5厘米,宽0.7-1厘米;萼状花被片黄绿色,线形至线状披针形,长10-15厘米,宽0.3-0.7厘米,先端渐尖,有短尖头,边缘全缘,通常反曲;瓣状花被片白色,长圆状倒披针形,长12-15厘米,宽4-5.5厘米,先端急尖,具1芒尖,边缘全缘或啮蚀状,开展;花丝黄白色,长5-7.5厘米;花药长4.5-5毫米,淡黄色;花柱黄白色,长17.5-20厘米,直径6-7.5毫米;柱头20-24,线形,长3-3.3毫米,先端长渐尖,开展,黄白色。浆果红色,长球形,长7-12厘米,直径5-10厘米,果脐小,果肉白色。种子倒卵形,长2毫米,宽1毫米,厚0.8毫米,黑色,种脐小。花期7-12月。 【引自:中国植物志】

2分布信息

采集编号 国家 区县 详情
14CS8267 中国 云南省 西双版纳傣族自治州 景洪市 详细
15CS10427 中国 云南省 玉溪市 元江哈尼族彝族傣族自治县 详细

3离体材料信息

编号 保藏类型 保护级别 份数 数据来源
IVB1447 离体培养物 食用 10 离体材料库
IVB1671 离体培养物 观赏 10 离体材料库
  • 数据统计

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  • 创建者:种质资源库
  • 最近更新:2021年4月11日