Chromosome Number and Reproductive Mode of Arachniodes davalliiformis (Dryopteridaceae)

Abstract

The chromosome numbers and reproductive mode of a few species of the genus Arachniodes in Japan are still unknown although previous studies have reported cytotypes for many species. This study contributes new information of cytological data of Arachniodes by reporting a tetraploid (2n = 164) sexual species, A. davalliiformis from Japan.