I new record of pleurocarpous mosses to hebei province , china i 河北省侧蒴藓类植物新记录
2.
According to these specimens , a key of families , genera and species about the pleurocarpous mosses in hebei have been worked out , and some dissecting graphs have been pictured 96 ，这些优势类群大都是温带性质的科、属。本省该类群枪物包括中国特有种15种，占总种数的7
3.
Among them , some species are indicating plants for pollution , some have natural chemical materials that can resist bacteria and virus . they have promising exploit prospect . the thesis is principally based on the investigation , collection of the specimens and the identification of more than 5000 packages of pleurocarpous mosses collected by us in hebei province from 1995 to 2001 研究结果表明，河北省侧蒴藓类植物区系成分可划分为9类，其中，北温带成分占主导地位，共计98种，占总种数的50 . 79 ；东亚成分占很重要的位置，共计54种，李秀芹：河北省侧葫茸类植物研究2占总种数的27
4.
This thesis taking the lead in systematically studying pleurocarpous mosses , is a part of the comprehensive research of bryophytes in hebei , which will provide datum for the statistics and analysis of bryophytes along with exploit and utility of plant resources in hebei , which will provide the first - hand material for the compilation of the ( ( flora bryophytarum hebeiensis ) ) and the ( ( flora bryophytarum sinicorum ) ) . on classification system , the author references the classification systems about bryophytes and approves standpoint of vitt . , considering that the place of capsule growing is the criterion of distinguishing acrocarpous and pleurocarpous mosses 本研究采用了陈邦杰教授( 1963 )修正的reimers ( 1932 )关于藓纲植物的分类系统，同时，支持h . d . mitten ( 1984 )的观点，认为划分顶蒴和侧蒴藓类植物的依据是孢子体着生的位置，其中侧蒴藓类植物是指蒴柄从叶腋中发生非着生茎顶的藓类植物，分类系统上指从虎尾藓科( hdwigiaceae ) ?塔藓科( hylocomiaceae )等。
