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莲叶桐Hernandia nymphaeifolia

时间:2013-09-24 12:28来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):莲叶桐 学名( Scientific Name ): Hernandia nymphaeifolia (C. Presl) Kubitzki 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Hernandia ovigera L. Biasolettia nymphaeifolia C
中文名(Chinese Name):莲叶桐
学名(Scientific Name):Hernandia nymphaeifolia (C. Presl) Kubitzki
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Hernandia ovigera L.  Biasolettia nymphaeifolia C. Presl.  Hernandia vitiensis Seem. ex Pax
科属(Family & Genus):莲叶桐科(Hernandiaceae)莲叶桐属
形态特征(Description):常绿乔木。树皮光滑。单叶互生,心状圆形,盾状,长20-40厘米,宽15-30厘米,先端急尖,基部圆形至心形,纸质,全缘,具3-7脉;叶柄几与叶片等长。聚伞花序或圆锥.花序腋生;花梗被绒毛;每个聚伞花序具苞片4。花单性同株,两侧为雄花,具短的小花梗;花被片6,排列成2轮;雄蕊3,每个花丝基部具2个腺体,花药2室,内向,侧瓣裂;中央的为雌花,无小花梗,花被片8,2轮,基部具杯状总苞;子房下位,花柱短,柱头膨大,不规则的齿裂,具不育雄蕊4。果为1膨大总苞所包被,肉质,具肋状凸起,直径3-4厘米;种子1粒,球形,种皮厚而坚硬。
分布(Distribution):产我国台湾南部及亚洲热带地区。常生长在海滩上。
用途(Use):
引自中国植物志英文版FOC Vol. 7 Page 255| Hernandiaceae  | Hernandia
Hernandia nymphaeifolia (C. Presl) Kubitzki, Bot. Jahrb. Syst. 90: 272. 1970.
莲叶桐 lian ye tong
Biasolettia nymphaeifolia C. Presl, Reliq. Haenk. 2: 142. 1835 ["nymphaeaefolia"]; Hernandia peltata Meisner.
Trees. Bark smooth. Petiole nearly as long as blade; leaf blade peltate, ovate or orbicular-cordate, 20-40 × 15-30 cm, papery, glabrous, 3-7-veined, base rounded and cordate, apex acute. Peduncle 6-20 cm. Panicle axillary; involucral bracts 4, elliptic to obovate, 2-6 × 1-3.5 mm. Flowers axillary, 3 together in a corymb, lateral flowers staminate, central one pistil- late. Staminate flowers: pedicel tomentose; tepals 6, in 2 series; stamens 3; filaments with 2 basal glands, ca. 1 mm. Pistillate flowers: pedicel absent; tepals 8, in 2 series; style ca. 3 mm, papillose; stigma dilated, irregularly toothed; surrounding glands 4, ca. 1 mm. Fruit drupaceous, urn-shaped, costate, 3-4 cm in diam. Fl. and fr. year-round. 2n = 40.
Sparse forests; near sea level. E and NE Hainan, S Taiwan [Cambodia, Indonesia, Japan, Malaysia, Philippines, Sri Lanka, Thailand, Vietnam; E Africa and east to the Pacific].
The name Hernandia sonora Linnaeus was misapplied to this species in FRPS (31: 465. 1982). True H. sonora is distributed in tropical America.



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