摘要
利用石蜡切片的方法 ,对十种藓类植物 ,钝叶蓑藓 (Macromitriumjaponicum Doz.et.Molk .)、疏齿墙藓〔 Tortulanorvegica(Web .)Wahl.exLindb .〕、岸生连轴藓〔 Schistidiumrivularis(Brid .)Podp .〕、树形疣灯藓〔Trachycystisussuriensis(MaacketRegel )T .Kop .〕、齿边缩叶藓〔 Ptychomitriumdentatum(Mitt.)Jaeg .〕、山羽藓〔 Abietinellaabietina(Hedw .)Fleisch〕、东亚万年藓 ( Climaciumjaponicum Lindb .)鼠尾藓〔 Myurocladamaximowiczii(Borszcz)SteeretSchof.〕、卷叶凤尾藓 (FissidensdubiusP .Beauv .)及二形凤尾藓 (FissidensgeminiflorusDoz .etMolk .)的茎横切面的解剖观察结果表明 :茎的形状、中轴细胞的有无、形状及所占的比例、外皮部厚壁细胞的层数等特征因种类不同而有明显差异 ,可以作为分类依据之一。外皮部厚壁细胞的层数可能与藓类植物的生境有关。
The structure of the stems of 10 species of mosses (Macromitrium japonnicum, Tortula norvegica, Schistidium rivilaris, Trachycystis ussuriensis, Ptychomitrium dentatum, Abletinella abietina, Climacium japnicum, Myuroclada maximowiczii, Fissidens dubius and Fissidens geminiflorus) are observed by means of paraffin wax sections. The results show that the features including the shapes of stems, cell shapes and scale of the axial part of stems, number of layers of sclerenchyma of the external cortex in the stems are obviously different from the different species of mosses. These features can be regarded as the classification bases. The number of layers of sclerenchyma of the external cortex in the stems may be related to the habitat of the mosses.
出处
《干旱区研究》
CSCD
2003年第1期20-24,共5页
Arid Zone Research
基金
河北师范大学基金资助
