摘要
我国竹类植物分布广泛,种类繁多。黄河流域以南都有天然分布。全国有500多种竹子,它们分属于大约40个属。竹类植物一些种类的鉴别,部分属及属以上某些价层的划分还没有得到完善,合理地解决。我们通过对国产在竹类植物的系统和分类上具有一定代表性的34种40余份竹子标本(分属于19属)的根部解剖观察,得出初步结论:根据竹类植物根部解剖特征可将竹类植物划分为两大类群,即散生竹类和丛生竹类。这两大类群的根解剖性质上又与目前按竹子花序划分的两大类群(箣竹超族和北美箭竹超族)密切相关,它从另一个侧面说明按花序建立的竹类植物的系统可能是符合自然规律的。但是,某些属(如(竹思)(竹劳)竹属、悬竹属等)根的解剖式样与其它属有明显的差异,这说明竹子的形态、结构等等方面具有更多的复杂性和多样性。某些竹种在根的解剖上有着具体而微的特征,因此,竹子根部解剖性质可作为鉴别某些竹类和划分许多竹属的依据,同时也可作为建立竹子自然系统的参考。
A lot of bamboos ditribute widely in our country. Altogether there are 500 species of bamboos, belonging to about 40 genera, whicr distribute naturally in many provinces and regions in the south of the Yellow River. Many problems haven't been settled satisfactorily, such as discrimination of species, division of some genera, tribes and its taxonomical system, we collected 42 specimens of the bamboo roots which belong to 34 species, 19 genera from China, and then drew a conclusion after observing the slices of their roots: Bamboos can be divided into two groups according to anatomical type of bamboo roots. a) Bamboos with creeping rhizomes. b) Bamboos with short sympodial rhizomes. Some specimens such as Ampelocalamus and Schizostachyum are quite different with the others. These differences indicade the complexity and varioty in the morphologic and some other aspects of them. Individual differences of anatomic of bamboo can be laid down as the ruler to divide its species or genus.
出处
《竹子研究汇刊》
北大核心
1990年第2期11-21,共11页
Journal of Bamboo Research
