镰序竹属与悬竹属叶的比较解剖

Comparative anatomy of leave of genus Drepanostachyum and Ampelocalamus

应用光学显微镜观察了镰序竹属与悬竹属共10个种叶的横切面和表皮结构,对分类学上有争议的种的分类地位进行探讨。结果表明:(1)镰序竹属与悬竹属叶的结构差异较大,应单独立属;(2)羊竹子、巴竹、冕宁镰序竹及碟环竹叶的结构与镰序竹属各种相近,它们应归于镰序竹属;(3)扫把竹的形态和解剖特征与镰序竹属各种差异显著,不宜放入镰序竹属,而应恢复到箭竹属中。

After examining the cross section of leaf and leaf epidermis of 10 species of genus Drepanostachyum and Ampelocalamus applying optical microscope, and probed the position of disputed species and concluded; （1）the anatomical structures of Drepanostachyurn and Ampelocalarnus are different obviously, so they should be separated to be 2 genara （2）the anatomical characters of D. saxatile,D, yongshanensis,D, mianningensis and A. patellaris are more close to that of Drepanostachyum and they should belong to Drepanostachyum （3）the morphologic and anatomical characters of D. fractiflexum are different dramatically from that of Drepanostachyum and it should belong to Fargesia.