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顶花酸脚杆

中文学名:顶花酸脚杆

界:植物界

门:被子植物门

纲:双子叶植物纲,又称木兰纲

亚 纲:蔷薇亚纲

目:桃金娘目

族:藤牡丹族

属:酸脚杆属

种:顶花酸脚杆

顶花酸脚杆,别名:酸藤子美丁花,拉丁文名:Medinilla assamica (C. B. Clarke) C. Chen. 是野牡丹科酸脚杆属灌木或攀援灌木,产于云南广西海南岛[1]

顶花酸脚杆形态特征

灌木或攀援灌木,有时呈藤本状,高1-4米;小枝钝四棱,以后圆柱形,无毛。

顶花酸脚杆 叶片坚纸质,卵形、披针状卵形或椭圆形,顶端渐尖,基部心形,偏斜,稀钝,长10-21厘米,宽3.8-11厘米,全缘或具细浅锯齿,3或5基出脉,两面密布小突起,或背面被疏粗伏毛及糠秕,叶面基出脉下凹,侧脉不明显,背面基出脉、侧脉明显,隆起;叶柄极短或无。

由聚伞花序组成的圆锥花序,顶生,长8-3 0厘米;苞片极小,卵形;花梗长约0.5毫米,花萼杯形,长约4毫米,密布小突起,边缘微波状,裂片不明显;花瓣4,粉红色,广卵形,顶端钝或近急尖,长4.5毫米,宽3.5毫米,下部略偏斜;雄蕊8,等长,花丝长约3毫米,花药基部小瘤与药隔连接成距;子房下位,4室,扁球形,顶端平截,全缘,具隔片。浆果球形,长4-5毫米,直径约4毫米,顶端平截,盘形。

种子短楔形,具小突起。花期4-6月,果期约10月。

Medinilla assamica (C. B. Clarke) C. Chen, 植物分类学报21 (4) : 419. 1983——Anplectrum assamicum C. B. Clarke in Hook. f. Fl. Brit. Ind. .2: 546. 1879 et in Journ. Linn. Soc. Bot. 25: 23. 1889——Diplectria assamica (C. B. Clark) O. Ktze. Rep. Gen. Pl. 1: 246. 1891——Pseudodissochaeta assamica (C. B. Clarke) Nayar in Journ. Bomb. Nat. Hist. Soc. 65: 559. f. 1. 1969——Allomorphia subsessilis Craib in Kew Bull. 1913: 69. 1913 et Fl. Siam. Enum. 1: 686. 1913——Ps. subsessilis (Craib) Nayar 1. c. 561. f. 2.——Med. spirei Guillaum. in Lecte. Fl. Gen. Indo-Chine 2: 921. 1921; H. L. Li in Journ. Arn. Arb. 25: 38. 1944; 海南植物志2: 37. 1965; 云南植物志2: 130. 图版31, 6-8. 1979.

Shrubs or scandent (scrambling) shrubs, 1-4 m tall. Branches 4-angled when young, later terete, glabrous. Leaves very shortly petiolate or sessile; leaf blade ovate, lanceolate-ovate, or elliptic, 10-21 × 3.8-11 cm, leathery, both surfaces minutely tuberculate or adaxially glabrous, abaxially sparsely strigose and furfuraceous, secondary veins 1 or 2 on each side of midvein, base oblique and cordate or rarely obtuse, margin entire or shallowly serrulate, apex acuminate. Inflorescences terminal, cymose paniculate, 15-30 cm. Pedicel 0.5-2 mm. Hypanthium cup-shaped, 3-4 mm, minutely tuberculate, margin slightly undulate. Calyx lobes inconspicuous. Petals 4, pink, broadly ovate, 3-4.5 × ca. 3.5 mm, basally slightly oblique, apex obtuse to subacute. Stamens 8, subequal; filaments ca. 3 mm; anthers lanceolate, ca. 4 mm; connective decurrent, inflated around base of anther and abaxially minutely spurred. Ovary ovoid, 4-celled, apex truncate and entire. Berry globular, 4.5-6 × 4-5 mm, apex truncate. Seeds shortly cuneate, small tuberculate. Fl. Apr-Jun, fr. Oct.

顶花酸脚杆生长环境

生长于海拔200-1250米的山谷、山坡的疏、密林中,溪边、路旁湿润的地方。 [2]

顶花酸脚杆分布范围

产于云南广西海南岛印度越南泰国也有。

参考来源

  1. 顶花酸脚杆, 植物智, 2020-01-18
  2. 《中国植物志》 第53(1)卷 (1984) >> 272页 PDF