The main genera are Pteris L., Colysis Presl, Woodwardia Sm., Selaginella Spring and Asplenium L., among which Pteris L. and Woodwardia Sm. have relatively intensive distribution.
主要属为凤尾蕨属、线蕨属、狗脊蕨属、卷柏属和铁角蕨属，其中以凤尾蕨属和狗脊蕨属分布相对集中。
Because the probability density function of MQAM signal obeys L-S distribution, so it may construct the algorithm of discerning with L-S distribution.
由于MQAM信号的概率密度函数服从莱斯分布，从而用莱斯分布来构造识别算法。
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