◆◇院區植物介紹專欄◇◆

  院區植物介紹專欄：月橘與軟枝黃蟬

    Discovering our campus plants

    月橘與軟枝黃蟬

    植物研究所標本館　劉翠雅、趙淑妙

    月橘（七里香、十里香）

    英文名：Orange-jasmine
    學名（Scientific Name）：Murraya paniculata Jack. var. paniculata
    科名（Family）：芸香科Rutaceae or Rue Family
    分布：原產熱帶亞和澳洲。台灣分布於低海拔地區。院區普遍種植
          為綠籬植物。
    形態特徵：常綠灌木。羽狀複葉互生，小葉互生，卵形，2.5-5公
              分長，1.5-2.5公分寬，全緣；葉子對光看有細小油點，
              揉之有香氣；聚繖花序頂生或近枝條末端腋生；花萼5
              片；花瓣5片，白色，有香味；雄蕊10枚，有長短二型，
              間插排列；漿果橢圓形，成熟時紅色，約1公分長，種
              子數目1-2。

    本屬植物約5種，產於熱帶亞洲。台灣原生3種。

    Orange-jasmine and Golden Trumpet

    Tsui-Ya Liu, Shu-Miaw Chaw

    Herbarium, Institute of Botany
    Distribution: A native of southeastern Asia and Australia.
                  In Taiwan, widely distributed at low altitudes
                  Commonly cultivated as a hedgerow plant.
    Characteristics: Evergreen shrub. Leaves pinnate, alternate,
                     the leaflets alternate, ovate, ca. 2.5-5cm
                     long, 1.5-2.5cm broad, margin entire, leaflet;
                     oil cells visible when seeing the leaf blade
                     against the light, aromatic when leaflet
                     crushed; inflorescence compact terminal or
                     axillary corymbs; calyx 5; corolla 5, white,
                     fragrant; stamens 10, 5 long, 5 short,
                     alternately arranged; berry ovoid, ca. 1cm
                     long, red, 1-2 seeded.

      This genus has about 5 species distributed throughout the
    tropic Asia. In Taiwan there are 3 native species.

    軟枝黃蟬

    英文名：Golden trumpet
    學名（Scientific Name）：Allamanda cathartica L.
    科名（Family）：夾竹桃科Apocynaceae
    分布：原產南美。院區種植於植物所溫室南側及台史所北側。
    形態特徵：攀緣性常綠灌木，折之有白色有毒乳汁。單葉3-4枚輪生，
              披針形或倒卵形，8-12.5公分長，3.5-5公分寬，全緣；
              花序頂生；花黃色，徑約7-11公分；萼片深5裂，花冠筒
              狀，下半部縊縮，花瓣前端5裂，呈覆瓦狀排列；雄蕊5枚，
              著生於花冠筒口；蒴果2瓣裂，種子有紙質的翅。

    本屬植物有12種，產於中南美洲。台灣引進栽培2種。

    Distribution: A native of South America. Cultivated at south
                  side of the greenhouse and north side of Institute
                  of Taiwan History.
    Characteristics: Scandent evergreen shrub, exuding poisonous
                     milky latex when broken. Simple leaves 3-4
                     verticillate, lanceolate or obovate, ca. 8-12.5
                     cm long, 3.5-5cm wide, margin entire; inflorescence
                     terminal; flower yellow, ca. 7-11cm across;
                     calyx 5-parted; corolla of 5 joined petals,
                     funnelform, the tube constricted at lower half;
                     stamens 5, attached to the corolla tube; capsule
                     dehiscing into 2 parts, seeds with paper wing.

      This genus has about 12 species distributed throughout the
    Central and South America. In Taiwan there are two introduced
    species.

    月橘（七里香、十里香）　　　　　　　　　　　　　　軟枝黃蟬