石生脚骨脆
石生脚骨脆 |
中文学名:石生脚骨脆 拉丁学名:Casearia calciphila C. Y. Wu et Y. C. Huang ex S. Y. Bao in Acta Bot. Yunnan. 别 称:钙生嘉赐树(云南植物研究), 石生嘉赐树(云南植物志) 界:植物界 门:被子植物门 Angiospermae 纲:木兰纲 Magnoliopsida 目:堇菜目 Violales 科:大风子科 FLACOURTIACEAE 族:脚骨脆族 Trib. Casearieae 属:脚骨脆属 |
石生脚骨脆(shí shēng jiǎo gǔ cuì,俗名:石生嘉赐树、钙生嘉赐树异名:Casearia calciphila ),别名:钙生嘉赐树、石生嘉赐树,拉丁文名:Casearia calciphila C. Y. Wu et Y. C. Huang ex S. Y. Bao ,是木兰纲 、大风子科、脚骨脆属小乔木或灌木,树皮灰棕褐色,不裂;小枝棕灰色,有棱脊,无毛。叶薄革质,卵状长圆形或长圆形先端渐尖,尖头长约1厘米,基部楔形,边缘有稀疏小腺齿,上面亮绿色,下面淡绿色,两面无毛,弯拱上升,在边缘网结,小脉横行;有稀疏柔毛。子房圆锥形,花柱短,柱头头状。蒴果长圆形,生于海拔1000-1600米的石灰岩山坡杂木林中。 [1]
目录
石生脚骨脆形态特征
石生脚骨脆 小乔木或灌木,高3-6米;树皮灰棕褐色,不裂;小枝棕灰色,有棱脊,无毛。
叶薄革质,卵状长圆形或长圆形,长11-13厘米,宽4-6厘米,先端渐尖,尖头长约1厘米,基部楔形,边缘有稀疏小腺齿,上面亮绿色,下面淡绿色,两面无毛,侧脉6-8对,弯拱上升,在边缘网结,小脉横行;叶柄长0.8-1.3厘米,有稀疏柔毛。
花小,两性,绿色,3-4朵簇生于叶腋,无总梗,基部有鳞片状苞片;花直径约4毫米;花梗纤细,长约3毫米,有疏柔毛;萼片5片,卵圆形,长约3.5毫米,宽约2毫米,外面有线纹和疏毛,边缘膜质,有睫毛;花瓣缺;
雄蕊8枚,长约2毫米,花丝扁平,有疏毛,花药椭圆形;退化雄蕊亦8枚,扁平,上部有疏毛;子房圆锥形,长2-3毫米,有毛,花柱短,柱头头状。[2]
蒴果长圆形,长约1.2厘米;种子卵形。花期12月至次年3月,果期3-11月。
Casearia calciphila C. Y. Wu et Y. C. Huang ex S. Y. Bao in Acta Bot. Yunnan. 5 (4): 375, pl. 1, fig. 1-5. 1983;云南植物志4: 200,图版59,图1-5. 1986.
Trees, to 12 m tall; branches with bark brown to greenish gray, young branches wrinkled, older ones flaky, branchlets glabrous. Stipules triangular, ca. 2 mm, glabrous except for ciliate margin, apex acute, early caducous; petiole 8-13 mm, robust, completely glabrous; leaf blade pale green, elliptic, ovate-oblong, or oblong, 8-13 × 3.5-6 cm, leathery to thickly leathery, both surfaces completely glabrous, midvein prominent below, lateral veins 6-8 pairs, arching upward, finely marked on both surfaces, base acutely attenuate, asymmetric, margin undulate to repand-dentate, apex shortly acute-acuminate. Flowers few in sessile axillary glomerules, small. Pedicels ca. 3 mm, glabrous; bracts ovate, ca. 0.8 mm, abaxially glabrescent, adaxially glabrous. Sepals 5, ovate, 3.5-4.5 mm, leathery, glabrous except for sparsely ciliate margin. Stamens 8; filaments sparsely pubescent, glabrescent or glabrous, ca. 2 mm; anthers oblong-ellipsoid. Disk lobes oblong, hairy at apex. Ovary conic, 2-3 mm, hairy toward apex; style very short to nearly absent, ca. 0.5 mm, glabrous; stigma capitate. Capsule ellipsoid, 2.5-3.5 mm, fleshy, verrucose. Seeds many, whitish, ovoid, completely enveloped in partly fimbriate aril. Fl. Dec-Mar of next year, fr. Mar-Nov.
石生脚骨脆生长环境
主要生长于海拔1000-1600米的石灰岩山坡杂木林中。