unilacunar

常见例句

According to Esau, the primary vascular system ofthe stem of Eucommia ulmoides is a traces system, while at the same timethe structure of the stem nodes prossess the features of unilacunar gap andone trace.
参照Esau的观点,杜仲茎的初生维管系统应属于叶迹系统,而其节部结构的特征为单叶隙、单叶迹。
According to Fahn's view (1982) that evolutionary development of the node was from the unilacunar node with two leaf traces to other types of unilacunar node with one, three or more traces.
从叶柄的基部到远基端维管束变化来看,四棱草属与莸属十分相似,而与筋骨草属、香科科属,大青属则有所不同。
unilacunar node
单叶隙节