中国瓶尔小草科植物孢子形态的研究

利用扫描电镜对中国产瓶尔小草科2属7种的孢子进行了研究，其中包括瓶尔小草属6种，即裸茎瓶尔小草（OphioglossumnudicauleL．f）、尖头瓶尔小草（O．pedunculosumDesv．）、钝头瓶尔小草（O．petiolatumHook）、狭叶瓶尔小草（O．thermaleKom．）、心脏叶瓶尔小草（O．reticulatumL．）和瓶尔小草（O．vulgatumL．），蛇蕨属1种，即蛇蕨（又名带状瓶尔小草OphiodermapendulaPresl），对每个种的孢子形态特征进行描述。根据孢子形态特征，我们认为将中国的瓶尔小草科植物分为瓶尔小草属和蛇蕨属两个属是合适的。通过观察，进一步认定孢子外壁的纹饰特征极具分类参考价值，并可以作为种的界限的依据。

STUDIES ON THE SPORE MORPHOLOGY OF OPHIOGLOSSACEAE FROM CHINA

The spores of 2 genera, 7 species of Ophioglossaceae from China were studied by SEM. The species are: Ophioglossum nudicaule, O. pedunculosum, O. petiolatum, O. thermale, O. reticulatum, O. vulgatum and Ophioderma pendula. The morphological characteristics of each species were described. According to the spore morphology,to separated Ophioderma as a genus from Ophioglossum is reasonable. It is also found that the spore ornamentation pattern is valuable for species delimitation.