酸脚杆
酸脚杆 |
中文名:酸脚杆 拉丁学名:Medinilla lanceata 界:植物界 门:被子植物门 Angiospermae 纲:双子叶植物纲 Dicotyledoneae 目:桃金娘目 Myrtiflorae 科:野牡丹科 Melastomataceae 属:酸脚杆属 Medinilla 种:酸脚杆 |
酸脚杆(suān jiǎo gān),学名 Medinilla lanceata (Nayar) C. Chen,异名:Pseudodissochaeta lanceata Medinilla radiciflora,是桃金娘目、野牡丹科、酸脚杆属大灌木或小乔木植物,高2-5米。生长于海拔420-1000米的山谷、山坡疏、密林中荫湿的地方。 产于中国云南(南部)、海南岛。 [1]
目录
酸脚杆形态特征
酸脚杆 小枝钝四棱形,以后圆柱形,树皮木栓化,纵裂。叶片纸质,披针形至卵状披针形,顶端尾状渐尖,基部圆形或钝,长15-24厘米,宽3-5.5厘米;
边缘具疏细浅锯齿或近全缘,3或5基出脉,5脉时外侧2脉细且近叶缘,两面无毛或仅背面被微柔毛,略被糠秕,叶面中脉下凹,两侧基出脉微凸;
侧脉不明显,背面基出脉、侧脉隆起;叶柄长5-10毫米,有时略被柔毛。由聚伞花序组成圆锥花序,着生于老茎或根茎的节上,长8-25厘米,宽6-22厘米,被微柔毛;
苞片极小,卵形,花梗长约4毫米,与花萼均被微柔毛;花萼钟形,具不明显的棱,长5.5-6毫米,密布小突起,边缘浅波状,裂片不明显,成小突尖头;
花瓣4,扁广卵形(花蕾时),顶端钝或圆形,长约4.5毫米,宽约6毫米;雄蕊8,几等长,花丝长约2毫米,花药长约7毫米,基部具小瘤,药隔基部下延呈距;子房下位,卵形,4室,顶端具4齿。
果坛形,长约8毫米,直径约7毫米,密布小突起,被微柔毛;种子短楔形,具疏小突起。花期约8月,果期4月或10月。
Pseudodissochaeta lanceata M. P. Nayar, J. Bombay Nat. Hist. Soc. 65: 563. 1968; Medinilla radiciflora C. Y. Wu.
Shrubs or trees, 2-5 m tall. Branches obtusely 4-sided but later terete; bark corky, longitudinally shedding. Petiole 8-10 mm, slightly pilose; leaf blade lanceolate to ovate-lanceolate, 15-24 × 3-5.5 cm, papery, both surfaces glabrous or abaxially puberulous and slight furfuraceous, secondary veins 1 or 2 on each side of midvein, base rounded to obtuse, margin sparsely shallow serrulate to subentire, apex caudate-acuminate.
Inflorescences inserted on leafless stems or on root stock, cymose paniculate, 15-25 cm, puberulous. Pedicel ca. 4 mm, puberulous. Hypanthium campanulate, 5-6 mm, minutely tuberculate. Calyx lobes inconspicuous, apiculate.
Petals broadly ovate, ca. 4.5 × 6 mm, apex obtuse to rounded. Stamens 8, subequal; filaments ca. 7 mm, base tuberculate; connective decurrent, forming a spur. Ovary ovoid, 4-celled, apex 4-dentate. Berry urceolate, ca. 8 × 7 mm, minutely tuberculate, puberulous. Seeds shortly cuneate, scattered small tuberculate. Fl. Aug, fr. Apr or Oct.
分类文献
Medinilla lanceata (Nayar) C. Chen,植物分类学报21 (4); 421. 1983. ——Anplectrum sp. Merr. in Lingnan Sci. Journ. 5: 138. 1928; Merr. et Chun in Sunyatsenia 5: 144. 1940, in nota ——M. radiciflora C. Y. Wu ex C. Chen, 云南植物志2: 133. 图版32, 1-5. 1979——Pseudodissochaeta lanceata Nayar in Journ. Bomb. Nat. Hist. Soc. 65: 563. f. 3. 1969.
酸脚杆分布范围
酸脚杆主要价值
酸脚杆 食用价值:果可食。