Asplenium pifongia. (Aspleniaceae: Polypodiales), a New Species from Taiwan.

We describe and illustrate a new species, Asplenium pifongia., currently known only from Taiwan. Although superficially similar to A. monanthe., this species is a sexual diploid and has little perforation on its spore surfaces. Phylogenetic analyses demonstrate that A. pifongia. is not closely related to A. monanthe., and is instead sister to the A. normal. complex. Asplenium pifongia. differs from A. normal. in having sori mostly only on, and parallel to, the basiscopic side of pinnae, a common feature in A. monanthes. [ABSTRACT FROM AUTHOR]