一种新的棕榈科贝叶棕亚科的属的检索方法

通过常规方法，即以花、果、种子来鉴定棕榈科，因单朵花的花期很短以及很多果实发育成熟期较长而受到一定限制。尤其是在鉴定棕榈科贝叶棕亚科时因某些种类需数十年才开花或是一次性开花结实而遇到了很大障碍。有时，在引种地点无法获得花、果或种子。由于棕榈植物具有重要经济观赏价值，且其引种迅猛发展，故有必要尽早地鉴定它们。通过茎和叶，可对棕榈科贝叶棕亚科进行鉴定，本文列出了属的检索表。

A New Key to Genera of Coryphoideae (Palmae)

It is difficult to identify palms by flowers,fruits and seeds because of short bloom of every flower and long time of many fruits' development.In escape,more obstacles will come up when the palms of Corypheae are identified by flowers,fruits and seeds because the flowers of some species don't come across until these species live several decades and some species are hapaxanthic.We're unable to obtain flowers,fruits or seeds at the place of introduction of palms sometimes.It is necessary to identify palms as early as possible because not only they are important to our economy and landscape,but also the introduction of palms is more and more,wider and wider,faster and faster.In this paper,a key differentiating genera of Coryphoideae (Palmae) by stems and leaves is present.