The acrocarpous group includes the mosses capsule growing from the apex of branch or stem . it is from hdwigiaceae to hylocomiaceae . with bigger body , this group can preserve water and soil in forest ecological system and be favored double by horticulturist 同时，根据研究的标本编制了河北省侧蒴藓类植物分科、分属、分种检索表，并根据标本对其中重要的代表种类做了显微绘图。
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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。
