傘花寄生藤檢視原始碼討論檢視歷史
傘花寄生藤 |
中文名:傘花寄生藤 拉丁學名:Dendrotrophe umbellata (Bl.) Miq. 界:植物界 門:被子植物門 綱:雙子葉植物綱 目:檀香目 科:檀香科 屬:寄生藤屬 種:傘花寄生藤 |
傘花寄生藤(sǎn huā jì shēng téng),學名 Dendrotrophe umbellata (Bl.) Miq.,異名:Thesium spathulatum Viscum umbellatum Henslowia umbellata ,木質藤本;小枝近四稜形,後變圓柱狀,淡褐色。葉薄革質,倒卵圓形至近匙形,長4-7(-8)厘米,寬2-4厘米,頂端圓或鈍,基部闊楔形,下延而成葉柄,上面有光澤,基出脈3條,在兩面不明顯;葉柄長4-6毫米。產於廣東(海南)。老撾、柬埔寨、馬來西亞、印度尼西亞也有分布。 [1]
傘花寄生藤形態特徵
花單性,雌雄異株,直徑約1毫米;雄花: 3-5朵集成傘形花序;總花梗長5-7毫米;花梗長2.5-3毫米;小苞片連生呈總苞狀;
花被管圓柱形,頂端5裂,裂片三角形,長2/3毫米,在雄蕊後面有舌狀物一條,頂端內彎;雄蕊5枚,花絲長約0.3毫米;花葯室圓形;
雌花:單生或2-3朵聚生,花梗長1.5-2毫米;花被管卵圓形,花被裂片5,三角形;花盤肉質;花柱長3/4毫米,柱頭盾狀,近圓形,不明顯5裂。
核果倒卵狀,長10毫米,有柄,成熟時深紅色至黑色。花期2-4月,果期5-6月。
Woody vines. Stems pale brown, 4-ribbed at first, becoming terete, smooth. Petiole 4-6 mm; leaf blade obovate to subspatulate, 4-7(-8) × 2-4 cm, thinly leathery, adaxially glossy, basal veins 3, inconspicuous on both surfaces, base broadly cuneate, decurrent to form petiole, apex rotund or obtuse.
Male inflorescences umbellate, 3-5-flowered; peduncle 5-7 mm. Female inflorescences 1-3-flowered. Flowers unisexual (plants dioecious). Male flowers ca. 1 mm in diam.; pedicel 2.5-3 mm; bracteoles connate, forming involucre; perianth tube terete, lobes triangular, ca. 0.65 mm, apex incurved; stamen filaments ca. 0.3 mm with 1 tonguelike appendage behind each, cells rounded.
Female flowers: pedicel 1.5-2 mm; perianth tube ovoid, lobes 5, triangular. Discs fleshy. Style ca. 0.75 mm; stigma scutiform, suborbicular, inconspicuously 5-lobed. Drupe deep red to black when mature, obovoid, ca. 10 mm, stipitate. Fl. Feb-Apr, fr. May-Jun.
Forests; ca. 1100 m. Hainan, S Yunnan [Cambodia, Indonesia, Laos, Malaysia, Vietnam].
1 Petiole 4-6 mm; leaf blade obovate to subspatulate, 4-7(-8) cm. 4a var. umbellata 傘花寄生藤(原變種)
+ Petiole 6-10 mm; leaf blade lanceolate-oblong, 8-11 cm. 4b var. longifolia 長葉傘花寄生藤
分類文獻
Dendrotrophe umbellata (Bl.) Miq. Fl. Ned. Ind. 1: 779. 1855. ——Viscum umbellatum Bl. Bijdr. 666. 1826. Henslowia umbellata (Bl. ) Bl. Mus. Bot. Lugd. -Bat. 1: 243. 1850. ; Lecomte Fl. Gen. Indo-chine 5: 218. f. 23. 1915. ——Thesium sputhulatum Bl. Bijdr. 646. 1850.
傘花寄生藤生長環境
生長於疏林下。
傘花寄生藤分布範圍
產於廣東(海南)。老撾、柬埔寨、馬來西亞、印度尼西亞也有分布。我國分布新記錄。 (資料來源:中國植物志 第24卷 )