异叶三宝木Trigonostemon flavidus

中文名(Chinese Name):异叶三宝木
学名(Scientific Name):Trigonostemon flavidus Gagnep.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Trigonostemon heterophyllus Merr.
科属(Family & Genus):大戟科(Euphorbiaceae)三宝木属
形态特征(Description):灌木,高1-2米;小枝密被黄褐色长硬毛,老枝粗糙,几无毛。叶纸质,倒披针形至长圆状倒披针形,长12-35厘米,宽4-10厘米。顶端短渐尖,尖头尾状,基部渐狭,基端耳状或近心形,全缘或中部以上有不明显疏细齿,两面疏生长柔毛,边缘具睫毛;侧脉每边8-10条,在近叶缘处弯拱消失;叶柄长3-6毫米,密被黄棕色长硬毛。花雌雄异序 (或同序) ,雄花序总状,腋生,长约2.5厘米,具少数花;苞片4-5枚,线状披针形,多少呈镰状,长1-2厘米;雄花:萼片5枚,被长硬毛,其中3枚较大,长2.5-3毫米;花瓣倒卵状椭圆形,长约4.5毫米,暗紫红色;腺体5枚,长约0.8毫米;雄蕊3枚,花丝合生;雌花单生叶腋,花梗短,或有时生于长达6厘米的花序上部;萼片披针形,长约5毫米,被长硬毛;花瓣与雄花同;腺体5枚;子房密被毛,花柱顶端2裂。果序梗长1-8厘米,宿存萼片和苞片均呈披针形,长约2厘米;蒴果近球形,具3纵沟,密被黄褐色长硬毛;种子扁球状,直径约6毫米。栗褐色,具黄色斑纹,平滑。花期5-10月。
分布Distribution):海南特有。生于低海拔至中海拔山谷密林中。
用途Use):
引自中国植物志英文版FOC Vol. 11 Page 272, 273      
Trigonostemon flavidus Gagnepain, Bull. Soc. Bot. France. 69: 749. 1923.
异叶三宝木 yi ye san bao mu| Euphorbiaceae  | Trigonostemon
Trigonostemon heterophyllus Merrill.
Shrubs 1-2 m tall; branchlets densely yellow-brown hirsute; older branches scabrous, glabrescent. Leaves densely clustered in apparent whorls; petiole 3-6 mm, densely yellow-brown hirsute; leaf blade oblanceolate to oblong-oblanceolate, 12-35 × 4-10 cm, membranous to papery, densely hairy, basally attenuate into auriculate or subcordate base, margin entire or obscurely serrulate beyond middle, ciliate, apex shortly acumi nate, acumen caudate. Male flowers: inflorescences axillary, racemelike, ca. 2.5 cm, few flowered; bracts 4 or 5, linear- lanceolate, slightly falcate, 1-2 cm; sepals 5, hirsute, 3 larger, 2.5-3 mm, 2 smaller, ca. 1.5 mm; petals obovate-elliptic, ca. 4.5 mm, purple-red; disk glands 5, ca. 0.8 mm; stamens 3; filaments connate. Female flowers axillary, solitary; pedicels short, or sometimes inserted in upper part of to 6 cm inflorescences; sepals lanceolate, ca. 5 mm, hirsute, apex long ciliate, acuminate; petals elliptic or obovate, 4.5-5 × ca. 4 mm; disk glands 5, oblong; ovary densely hairy; styles bifid. Fruiting peduncles 1-8 cm; persistent sepals and bracts lanceolate, ca. 2 cm. Capsules subglobose, ca. 6 mm in diam., chestnut brown, with stripes of yellow spots. Fl. May-Oct, fr. Aug-Dec.
Dense forests; ca. 300 m. Hainan [Laos, Myanmar, Thailand].

异叶三宝木Trigonostemon flavidus

异叶三宝木Trigonostemon flavidus(责任编辑:徐晔春)

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