四川花萼山国家级自然保护区蕨类植物区系分析

研究四川花萼山国家级自然保护区蕨类植物区系。结果表明,蕨类植物区系成分复杂,类型丰富,有蕨类植物35科67属192种;优势科属明显,科内及属内分化程度较高;科属地理成分以热带成分占优势,种的地理成分以温带成分为主;生境特点以土生为主;与城口大巴山和巫溪阴条岭保护区物种相似性系数较高,关系较为密切。

Analysis of the Pteriboflora from Hua''e Mountain National Nature Reserve in Sichuan Province

Pteridophyte flora from Hua''e Mountain Nature Reserve had been studied. The preliminary results showed that the floristic components of the reserve were complex and the taxa were abundant, including 35 families,67 genera,and 192 species of ferns. The dominant families and genera were obvious; Their intra-family and intra-genus differentiation were high and their species composition were diverse. The floristic elements were of tropical at the level of family,however,those of tem-perate at the level of genus. Their habitats were terrestrial. A comparison of species coefficients with other reserves revealed that the pteridoflora of Hua''e Mountain Reserve was more closely related to those of Dabashan Reserve and Yintiaoling Re-serve.