Polypodiaceae subfam. Polypodioideae 第1页

Phylogenetic position of the monotypic genus Metapolypo- dium Ching endemic to Asia: evidence from chloroplast DNA sequences of rbcL gene and rps4-trnS region Study on the Spore Morphology of Subfam. Polypodioideae ( Polypodiaceae) in Yunnan, China