頂花酸腳杆檢視原始碼討論檢視歷史
頂花酸腳杆 |
中文學名:頂花酸腳杆 界:植物界 門:被子植物門 綱:雙子葉植物綱,又稱木蘭綱 亞 綱:薔薇亞綱 目:桃金娘目 族:藤牡丹族 屬:酸腳杆屬 種:頂花酸腳杆 |
頂花酸腳杆,別名:酸藤子、美丁花,拉丁文名:Medinilla assamica (C. B. Clarke) C. Chen. 是野牡丹科、酸腳杆屬灌木或攀援灌木,產於雲南、廣西、海南島。 [1]
頂花酸腳杆形態特徵
灌木或攀援灌木,有時呈藤本狀,高1-4米;小枝鈍四棱,以後圓柱形,無毛。
頂花酸腳杆 葉片堅紙質,卵形、披針狀卵形或橢圓形,頂端漸尖,基部心形,偏斜,稀鈍,長10-21厘米,寬3.8-11厘米,全緣或具細淺鋸齒,3或5基出脈,兩面密布小突起,或背面被疏粗伏毛及糠秕,葉面基出脈下凹,側脈不明顯,背面基出脈、側脈明顯,隆起;葉柄極短或無。
由聚傘花序組成的圓錐花序,頂生,長8-3 0厘米;苞片極小,卵形;花梗長約0.5毫米,花萼杯形,長約4毫米,密布小突起,邊緣微波狀,裂片不明顯;花瓣4,粉紅色,廣卵形,頂端鈍或近急尖,長4.5毫米,寬3.5毫米,下部略偏斜;雄蕊8,等長,花絲長約3毫米,花葯基部小瘤與藥隔連接成距;子房下位,4室,扁球形,頂端平截,全緣,具隔片。漿果球形,長4-5毫米,直徑約4毫米,頂端平截,盤形。
種子短楔形,具小突起。花期4-6月,果期約10月。
Medinilla assamica (C. B. Clarke) C. Chen, 植物分類學報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; 雲南植物志2: 130. 圖版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.
頂花酸腳杆生長環境
生長於海拔200-1250米的山谷、山坡的疏、密林中,溪邊、路旁濕潤的地方。 [2]