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郎德木Rondeletia odorata

时间:2013-11-08 12:35来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):郎德木 学名( Scientific Name ): Rondeletia odorata Jacq. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): 科属( Family Genus ): 茜草科(Rubiaceae)郎德木属 形态特征( Des
中文名(Chinese Name):郎德木
学名(Scientific Name):Rondeletia odorata Jacq.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):茜草科(Rubiaceae)郎德木属
形态特征(Description):灌木,高可达2米;枝被柔毛或无毛,嫩枝被棕黄色硬毛。叶对生,革质,具短柄,粗糙,卵形、椭圆形或长圆形,长2-5厘米,宽1-3.5厘米,顶端钝或短尖,基部钝或近心形,边缘背卷,叶两面常皱,下面被疏柔毛,上面布满小凸点,常在小凸点上有短硬毛;侧脉3-6对,在下面凸起,上面凹下;叶柄长1-2毫米;托叶三角形,长4-5毫米,有柔毛,顶端尖。聚伞花序顶生,有花数朵至多朵,长约3厘米,宽3-4.5厘米,被棕黄色柔毛;花直径约1厘米,有花梗;萼管近球形,长约6.5毫米,密被硬毛,裂片5,线形,长4-5毫米,有疏柔毛;花冠鲜红色,喉部带黄色,外面有短柔毛,冠管柔弱,长约1厘米,裂片近圆形,长约3.5毫米,宽约4毫米;花药长约2.75毫米。蒴果球形,密被柔毛,直径3-4毫米。花期7-9月。
分布(Distribution):原产于古巴、巴拿马、墨西哥等地,华南及西南地区有少量栽培。
用途(Use):
引自中国植物志英文版:FOC Vol. 19 Page 304   
Rondeletia odorata Jacquin, Enum. Syst. Pl. 16. 1760.
郎德木 lang de mu| Rubiaceae  | Rondeletia
Shrubs, to 2 m tall; branches flattened to subterete, hirtellous or villosulous to glabrescent. Leaves opposite, decussate; petiole 1-2 mm, hirtellous to glabrescent; blade drying stiffly leathery, ovate, elliptic, or elliptic-oblong, 2-5 × 1-3.5 cm, adaxially scabrous and often rugulose or bullate, abaxially glabrescent to pilosulous or hirtellous at least on principal veins, base obtuse to subcordate, margins thinly revolute, apex broadly obtuse to acute; secondary veins 3-6 pairs, sometimes with pilosulous to pilose domatia; stipules persistent, triangular, 4-5 mm, strigillose to pilosulous, acute. Inflorescences terminal, cymose, several to many flowered, 2-3 × 3-4.5 cm, hirtellous to hirsute; peduncle 0.7-1.5 cm; bracts narrowly triangular to ovate or elliptic, 2-15 mm, acute; pedicels 1.5-5 mm. Calyx with ovary portion subglobose, 1.5-2 mm, densely strigillose to pilosulous; limb lobed essentially to base; lobes 5, narrowly triangular to linear, 4-5 mm, sparsely strigillose to puberulent. Corolla bright red with yellow throat, salverform, pilosulous to strigillose outside; tube 12-20 mm; lobes suborbicular, ca. 3.5 × 4 mm, crisped, obtuse to rounded. Capsules globose to depressed globose, 3-4 mm in diam., densely hirtellous or villosulous; seeds ca. 0.8 × 0.5 mm. Fl. Jul-Sep.
Cultivated in Fujian, Guangzhou, and Hong Kong [native to Cuba; cultivated sporadically in tropical regions worldwide].
The cultivated plants apparently do not produce fruit; the description of the fruit here is taken from plants in the native range of this species. The few Chinese species seen are all long styled.
 




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