焕镛木Woonyoungia septentrionalis

中文名(Chinese Name):焕镛木
学名(Scientific Name):Woonyoungia septentrionalis (Dandy) Y. W. Law
英文名(English Common Name):
别名(Chinese Common Name):单性木兰
异名(Synonym):Kmeria septentrionalis Dandy  Magnolia kwangsiensis Figlar et Nooteboom
科属(Family & Genus):木兰科(Magnoliaceae)焕镛木属
形态特征(Description):乔木,高达18米,胸径40厘米,树皮灰色;小枝绿色,初被平伏短柔毛。叶革质,椭圆状长圆形或倒卵状长圆形、长8-15厘米,宽3.5-6厘米,先端圆钝而微缺,基部阔楔形,叶两面无毛,或叶背嫩时基部有稀疏柔毛,上面亮绿色,侧脉每边12-17条,干时网脉两面凸起,叶柄长2-3.5厘米,初被灰色柔毛,后变无毛,托叶痕几达叶柄先端。花单性异株,雄花:花被片白带淡绿色,外轮3片倒卵形,长2-3厘米,宽约2厘米,内轮2片,椭圆形,稍狭小;雄蕊群白色带淡黄色,倒卵圆形;雄蕊长1.8-2.5厘米,花药长约15-1.5厘米,侧向开裂,药隔伸出长2-3毫米的舌状尖头,花丝长约2毫米;雌花:外轮花被片3,倒卵形,长2.5-3厘米,宽2-2.5厘米,内轮花被片8-10,线状披针形,长2-2.5厘米,宽0.2-0.3厘米;雌蕊群绿色,倒卵圆形,长约1厘米,径0.8-0.9厘米,具6-9枚雌蕊,花柱短,柱头面鸡冠状,每心皮具胚珠2颗,胚珠有短柄。聚合果近球形,果皮革质,熟时红色,径3.5-4厘米,蓇葖背缝全裂,具种子1 2颗;种子外种皮红色,豆形或心形,宽10-12毫米,高7-9毫米,去外种皮种子黑褐色,顶端平或稍凹,具狭长沟,中具柄,腹背两面数块具不规则凸起。花期5-6月,果期10-11月。
分布(Distribution):产广西、贵州及云南等地。
用途(Use):
引自中国植物志英文版:FOC Vol. 7 Page 51, 68
Woonyoungia septentrionalis (Dandy) Y. W. Law, Bull. Bot. Res., Harbin. 17: 355. 1997.
焕镛木 huan yong mu| Magnoliaceae  | Woonyoungia
Kmeria septentrionalis Dandy, J. Bot. 69: 233. 1931; Magnolia kwangsiensis Figlar & Nooteboom.
Trees, to 18 m tall, to 40 cm d.b.h. Bark gray. Twigs green, at first appressed pubescent. Stipular scar nearly reaching apex of petiole. Petiole 2-3.5 cm, at first grayish pubescent, later glabrescent; leaf blade elliptic-oblong to obovate-oblong, 8-15 × 3.5-6 cm, leathery, both surfaces glabrous or when young abaxially sparsely pilose at base, adaxially green and glossy, secondary veins 12-17 on each side of midvein, reticulate veins prominent on both surfaces, base broadly cuneate, apex obtuse and slightly emarginate. Male flower: tepals white and pale greenish; outer 3 tepals obovate, 2-3 × ca. 2 cm; tepals of inner 2 whorls elliptic, slightly narrower and smaller; androecium white with pale yellow, obovoid; stamens 1.8-2.5 cm; filaments ca. 2 mm; connective exserted and forming a 2-3 mm tonguelike tip; anthers 1-1.5 cm, dehiscing laterally. Female flower: outer 3 tepals obovate, 2.5-3 × 2-2.5 cm; tepals of inner whorls 8-10, linear-narrowly ovate, 2-2.5 cm × 2-3 mm; gynoecium green, obovoid, ca. 10 × 8-9 mm; carpels 6-9; ovules 2 per carpel, shortly funiculate; styles short; stigmas cristate. Fruit red when mature, subglobose; pericarp 3.5-4 cm, woody, dehiscing completely along dorsal sutures. Seeds 1 or 2 per carpel, those with testa red but those without testa black, bean-shaped to cordate, 10-12 × 7-9 mm, narrowly long furrowed, with several irregular massive protuberances, stalked at middle, apex truncate to slightly concave. Fl. May-Jun, fr. Oct-Nov. 2n = 38*.
● Limestone hills, forests; 300-600 m. N Guangxi, SE Guizhou, SE Yunnan.
This species is grown as an ornamental and used for timber.
焕镛木Woonyoungia septentrionalis

焕镛木Woonyoungia septentrionalis

焕镛木Woonyoungia septentrionalis(责任编辑:徐晔春)

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