试论竹类植物营养体分类

A PRELIMINARY STUDY ON BAMBOO CLASSIFICATION ACCORDING TO THE VEGETATIVE CHARACTERS

因为竹类植物不易开花,且无花种甚多,故加强营养体分类的研究,显得十分重要。竹类本身的营养体与生殖体是统一的。由于各器官进化的不平衡性,以导致同一生物体内某些器官已相当进化,但某些器官仍然比较原始,这种现象不仅表现在营养体的外部形态,也表现在内部解剖形态上,形成生物体的复杂性与多样性,这就为分类与鉴别工作带来一定困难,但也存在有利条件。以营养体外部形态鉴别竹属,有些属是可以鉴别的,但有些属却很难,如果综合利用解剖形态、习性与外部形态特征,将是有利得多。本文探讨了竹子营养体分类的依据,并根据这些依据编制了一个新的营养体分属检索表,以供各地试用,并有待以后补充修正关键词竹类;营养体特征;

As bamboo rarely flower and many species of them are unfl- owered,the way of classifying bamboos according to their veget- ative characters is of great significance, In plants,vegetative and roproductive organs are unified in one organism.As a result of the uncoorination in the evolution of different organs,within one organism,some organs are quite evo- lved while some are still original.This phenomenon can be seen not only on the outer forms but also-on the inner forms of veget- ative organs.Sueh complication and diversity in organism offer favourable conditions for classification and identification. The way of distinguishing bamboos by the outer forms of th- eir vegetative organs is workable for some genera but not for all ones.Therefore the comprehensive consideration of the anatomic form,habit and outerform of vegetative organs is suggested here by the authors. This paper dealt with the study on the bases for classifying bamboo plants based on their vegetative characters and on which, a new key of Chinese bamboo genera was drawn up.