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大黄栀子Gardenia sootepensis

时间:2013-11-08 12:44来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):大黄栀子 学名( Scientific Name ): Gardenia sootepensis Hutchins. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Gardenia massieana Pierre ex Pit. 科属( Family Genus ):
中文名(Chinese Name):大黄栀子
学名(Scientific Name):Gardenia sootepensis Hutchins.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Gardenia massieana Pierre ex Pit.
科属(Family & Genus):茜草科(Rubiaceae)栀子属
形态特征(Description):乔木,高7-10米,常有胶质状分泌物;小枝常具明显的节,节间密,长不及1厘米,被短柔毛,后渐脱落。叶纸质或革质,倒卵形、倒卵状椭圆形、广椭圆形或长圆形,长7-29厘米,宽3-16厘米,顶端短渐尖,尖头钝或稍钝,基部钝,楔形或稍短尖,上面稍有粘液,被短柔毛,下面密被绒毛;侧脉12-20对,和中脉均在下面凸起;叶柄长0.6-1.2厘米,稍有粘液,有短柔毛;托叶长0.5-1厘米,合生成管状,近膜质,顶部截形,有缘毛,后稍变硬和脱落。花大,直径约7厘米,芳香,单生于小枝顶端;花梗长1-1.5厘米,粗壮,稍粘,被微柔毛;花萼长1.3-1.5厘米,管状,在顶端一侧分裂,外面稍粘,稍被柔毛,内面有紧贴的毛;花冠黄色或白色,高脚碟状,裂片5,阔倒卵形,长4-5厘米,宽约3厘米,有脉,无毛,冠管圆筒状,长5-7厘米,直径3-5毫米,外面稍被微柔毛,内面无毛;雄蕊5枚,着生在花冠喉部,花药长达1.5厘米,宽2毫米,内藏或伸出;子房1室,花柱长约6厘米,有槽,下部疏被近紧贴的柔毛,柱头棒状,胚珠多数,着生在2个侧膜胎座上。果绿色,椭圆形或长圆形,被微柔毛,常有5-6条纵棱,长2.5-5.5厘米,直径1.5-3.5厘米,果皮硬,革质,厚约2毫米;种子多数,近圆形,扁,直径3-4毫米,有蜂窝状小孔。花期4-8月,果期6月至翌年4月。
分布(Distribution):产于云南,生于海拔700-1 600米处的山坡、村边或溪边林中。泰国和老挝也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 19 Page 141, 142, 143
Gardenia sootepensis Hutchinson, Bull. Misc. Inform. Kew. 1911: 392. 1911.
大黄栀子 da huang zhi zi | Rubiaceae  | Gardenia
Trees, 7-10 m tall, often with gelatinous secretions; branches with both developed and shortened internodes, somewhat compressed to angled or subterete, densely puberulent, pilosulous, or tomentulose, becoming glabrescent. Leaves opposite; petiole 0.6-1.2 cm, puberulent or tomentulose; blade drying papery or thinly leathery, obovate, obovate-elliptic, broadly elliptic, or elliptic-oblong, 7-29 × 3-16 cm, adaxially puberulent or pilosulous to glabrous, abaxially densely tomentose, base rounded to obtuse or cuneate, apex shortly acuminate with tip acute or obtuse; secondary veins 12-20 pairs, in abaxial axils often with densely pilosulous domatia; stipules calyptrate, conical, 0.5-1 cm, sericeous outside, densely puberulent or tomentulose inside, apical portion triangular and caducous, basal portion truncate to broadly rounded and usually persisting with leaves and sometimes becoming hardened. Flowers pseudoaxillary usually near branch apices, solitary; peduncle 1-1.5 cm, puberulent. Calyx densely puberulent to pilosulous externally; ovary portion ellipsoid, smooth, 5-6 mm; limb spathaceous, 13-15 mm, splitting along one side for 2/3-3/4 of its length, inside sericeous, often viscid or mucilaginous. Corolla yellow or white, salverform; tube 50-70 × 3-5 mm, cylindrical, outside sparsely puberulent, inside glabrous; lobes 5, broadly obovate, 40-50 × 20-30 mm, glabrous on both surfaces, obtuse to acute. Berry ellipsoid or ellipsoid-oblong, 2.5-5.5 × 1.5-3.5 cm, puberulent, smooth or with 5 or 6 longitudinal lines or very weak ridges, leathery to hard; seeds suborbicular, flattened, 3-4 mm in diam., foveolate. Fl. Apr-Aug, fr. Jun-Apr.
Forests at streamsides, at village margins, or on mountain slopes; 700-1600 m. Yunnan [Laos, Thailand].
W. C. Chen (in FRPS 71(1): 335. 1999) described the flowers as terminal on branchlets, but these are pseudoaxillary on all specimens seen as described here.
 


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