石生腳骨脆檢視原始碼討論檢視歷史
石生腳骨脆 |
中文學名:石生腳骨脆 拉丁學名:Casearia calciphila C. Y. Wu et Y. C. Huang ex S. Y. Bao in Acta Bot. Yunnan. 別 稱:鈣生嘉賜樹(雲南植物研究), 石生嘉賜樹(雲南植物志) 界:植物界 門:被子植物門 Angiospermae 綱:木蘭綱 Magnoliopsida 目:堇菜目 Violales 科:大風子科 FLACOURTIACEAE 族:腳骨脆族 Trib. Casearieae 屬:腳骨脆屬 |
石生腳骨脆(shí shēng jiǎo gǔ cuì,俗名:石生嘉賜樹、鈣生嘉賜樹異名:Casearia calciphila ),別名:鈣生嘉賜樹、石生嘉賜樹,拉丁文名:Casearia calciphila C. Y. Wu et Y. C. Huang ex S. Y. Bao ,是木蘭綱 、大風子科、腳骨脆屬小喬木或灌木,樹皮灰棕褐色,不裂;小枝棕灰色,有棱脊,無毛。葉薄革質,卵狀長圓形或長圓形先端漸尖,尖頭長約1厘米,基部楔形,邊緣有稀疏小腺齒,上面亮綠色,下面淡綠色,兩面無毛,彎拱上升,在邊緣網結,小脈橫行;有稀疏柔毛。子房圓錐形,花柱短,柱頭頭狀。蒴果長圓形,生於海拔1000-1600米的石灰岩山坡雜木林中。 [1]
石生腳骨脆形態特徵
石生腳骨脆 小喬木或灌木,高3-6米;樹皮灰棕褐色,不裂;小枝棕灰色,有棱脊,無毛。
葉薄革質,卵狀長圓形或長圓形,長11-13厘米,寬4-6厘米,先端漸尖,尖頭長約1厘米,基部楔形,邊緣有稀疏小腺齒,上面亮綠色,下面淡綠色,兩面無毛,側脈6-8對,彎拱上升,在邊緣網結,小脈橫行;葉柄長0.8-1.3厘米,有稀疏柔毛。
花小,兩性,綠色,3-4朵簇生於葉腋,無總梗,基部有鱗片狀苞片;花直徑約4毫米;花梗纖細,長約3毫米,有疏柔毛;萼片5片,卵圓形,長約3.5毫米,寬約2毫米,外面有線紋和疏毛,邊緣膜質,有睫毛;花瓣缺;
雄蕊8枚,長約2毫米,花絲扁平,有疏毛,花葯橢圓形;退化雄蕊亦8枚,扁平,上部有疏毛;子房圓錐形,長2-3毫米,有毛,花柱短,柱頭頭狀。[2]
蒴果長圓形,長約1.2厘米;種子卵形。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;雲南植物志4: 200,圖版59,圖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.
石生腳骨脆生長環境
主要生長於海拔1000-1600米的石灰岩山坡雜木林中。
石生腳骨脆分布範圍
主要分布於雲南(西疇、麻栗坡、景東)、廣西(龍津)。模式標本采自雲南麻栗坡。