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圆叶梭罗 |
中文学名:圆叶梭罗 拉丁学名:Reevesia orbicularifolia Hsue 二名法:Reevesia orbicularifolia 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:锦葵目 科:梧桐科 属:梭罗树属 种:圆叶梭罗 分布区域:西畴 |
圆叶梭罗,(学名:Reevesia orbicularifolia Hsue),乔木,高10米,胸高直径30厘米;树皮灰褐色;小枝无毛或在幼嫩部分略被稀疏的浅褐色或灰白色星状短柔毛。产于西畴,海拔1500米的较干燥的石灰岩山地次生林中。 [1]
圆叶梭罗形态特征
乔木,高10米,胸高直径30厘米;树皮灰褐色;小枝无毛或在幼嫩部分略被稀疏的浅 褐色或灰白色星状短柔毛。
叶革质,圆形或卵圆形,长7-18厘米,宽6-16,几厘米,顶端圆形或有钝的突尖,基部圆形或截形,上面被稀疏的星状短柔毛,后脱净,下面密被淡黄褐色星状短柔毛,基生脉5条,叶脉在上面凹陷,在下面凸出;叶柄长3.5-7厘米,无毛或略被毛。
蒴果椭圆状梨形,生时棕褐色,干时暗褐色,长2.5厘米,宽1-5-2厘米,具5棱,被稀疏的淡黄褐色星状短柔毛及鳞秕;种子连翅长2.2厘米,翅膜质,矩圆形,褐色,顶端钝,略成镰刀形弯曲。
果期12月。
本种的叶圆形,稀为卵圆形,长宽几相等,小枝和叶柄无毛或略被毛,易于识别。
Trees, to 10 m tall, to 30 cm d.b.h.; bark gray-brown. Branchlets glabrous or sparsely brownish or gray stellate puberulent when young. Petiole 3.5-7 cm, glabrous or sparsely hairy; leaf blade orbicular or ovate-orbicular, 7-18 × 6-16 cm, leathery, abaxially densely yellowish brown stellate puberulent, adaxially sparsely stellate puberulent, glabrescent, basal veins 5, prominent abaxially, impressed adaxially, base rounded or truncate, apex rounded or obtusely acuminate. Flowers not seen. Capsule ellipsoid-pyriform, 5-angular, brown to dark brown, ca. 2.5 × 1.5-2 cm, sparsely yellowish brown stellate puberulent and scaly. Seeds ca. 2.2 cm including wing, wing brown, oblong, slightly falcate, apex obtuse. Fr. Dec.
● Secondary forests on limestone; ca. 1500 m. Yunnan (Xichou).
This species is easily distinguished from all but the following species by its orbicular or rarely ovate-orbicular leaves and its glabrous or sparsely pubescent branchlets and petioles.
圆叶梭罗生长环境
生于海拔1500米的较干燥的石灰岩山地次生林中。