圓葉梭羅檢視原始碼討論檢視歷史
圓葉梭羅 |
中文學名:圓葉梭羅 拉丁學名:Reevesia orbicularifolia Hsue 二名法:Reevesia orbicularifolia 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:原始花被亞綱 目:錦葵目 科:梧桐科 屬:梭羅樹屬 種:圓葉梭羅 分布區域:西疇 |
圓葉梭羅,(學名:Reevesia orbicularifolia Hsue),喬木,高10米,胸高直徑30厘米;樹皮灰褐色;小枝無毛或在幼嫩部分略被稀疏的淺褐色或灰白色星狀短柔毛。產於西疇,海拔1500米的較乾燥的石灰岩山地次生林中。 [1]
圓葉梭羅形態特徵
喬木,高10米,胸高直徑30厘米;樹皮灰褐色;小枝無毛或在幼嫩部分略被稀疏的淺 褐色或灰白色星狀短柔毛。
葉革質,圓形或卵圓形,長7-18厘米,寬6-16,幾厘米,頂端圓形或有鈍的突尖,基部圓形或截形,上面被稀疏的星狀短柔毛,後脫淨,下面密被淡黃褐色星狀短柔毛,基生脈5條,葉脈在上面凹陷,在下面凸出;葉柄長3.5-7厘米,無毛或略被毛。
蒴果橢圓狀梨形,生時棕褐色,干時暗褐色,長2.5厘米,寬1-5-2厘米,具5棱,被稀疏的淡黃褐色星狀短柔毛及鱗秕;種子連翅長2.2厘米,翅膜質,矩圓形,褐色,頂端鈍,略成鐮刀形彎曲。
果期12月。
本種的葉圓形,稀為卵圓形,長寬幾相等,小枝和葉柄無毛或略被毛,易於識別。
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.
圓葉梭羅生長環境
生於海拔1500米的較乾燥的石灰岩山地次生林中。