驼峰藤Merrillanthus hainanensis

中文名(Chinese Name):驼峰藤
学名(Scientific Name):Merrillanthus hainanensis Chun et Tsiang
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):萝藦科Asclepiadaceae驼峰藤属Merrillanthus
形态特征(Description):木质藤本,长约2米,多分枝,全部无毛或叶背脉上、花序梗、花梗及花萼上有时略有长柔毛。叶膜质,卵圆形,长5-15厘米,宽2.5-7.5厘米,顶端渐尖或急尖,基部圆形或心形;侧脉每边约7条,弧形上升,至叶缘网结;叶柄长1.5-5厘米,顶端具丛生小腺体。聚伞花序广展,腋生,比叶为长或等长,稀较叶为短,着花多朵;花梗细,不等长,长0.5-1.5厘米,基部着生有卵形的小苞片;花蕾圆球状,花冠裂片的顶端向内粘合;花萼裂片卵圆形,长2毫米,宽1.5毫米,具缘毛,花萼内面有5个小腺体;花冠黄色,辐状或近辐状,有脉纹,5裂至中部,裂片广卵形,钝头,略向右覆盖;副花冠5裂,肉质,着生于合蕊冠上,裂片卵形,背部隆起,腹部贴生在雄蕊上;花药顶端的透明膜片近卵形,覆盖着柱头;花粉块长圆形,下垂,顶端通过花粉块柄与着粉腺连结;子房无毛,柱头平扁,基部盘状。蓇葖单生,大形,纺锤状,长9-12厘米,直径3.5-4厘米,外果皮黄色,无毛;种子卵圆形或近圆形,长1.3厘米,宽1厘米,有边缘,基部圆形,顶端具白色绢质种毛;种毛长3.5厘米。花期3-4月,果期5-6月。
分布(Distribution):产于广东海南及高要。生长于低海拔至中海拔山地林谷中。
用途(Use):
引自中国植物志英文版:FOC Vol. 16 Page 252
Merrillanthus hainanensis Chun & Tsiang, Sunyatsenia. 6: 107. 1941.
驼峰藤 tuo feng teng | Asclepiadaceae  | Merrillanthus
Lianas to 3 m, many branched, glabrous except for sparsely pubescent abaxial leaf veins, peduncles, pedicels, and exterior of calyx. Petiole 1.5-5 cm; leaf blade ovate, 5-15 × 2.5-8 cm, membranous, base rounded or cordate, apex acuminate or acute; lateral veins 6 or 7 pairs. Cymes patent, at least as long as leaves, many flowered. Peduncle 2-5 cm; secondary peduncles 3-10 cm; cymule rachis 0.5-1.5 cm. Pedicel 0.5-1.5 cm. Sepals ovate, ca. 2 × 1.5 mm, ciliate. Corolla yellow, veined; tube ca. 3 mm, minutely papillate; lobes ca. 5 × 4 mm, broadly ovate. Follicles 9-12 × 3.5-4 cm. Seeds ovate or suborbicular, ca. 1.3 × 1 cm; coma ca. 3.5 cm.
Forest valleys; low to medium elevations. Guangdong, Hainan [Cambodia].
 驼峰藤Merrillanthus hainanensis

驼峰藤Merrillanthus hainanensis

驼峰藤Merrillanthus hainanensis
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