A TAXONOMIC REVISION OF THE FAMILY DITRICHACEAE (MUSCI) OF JAPAN, KOREA AND TAIWAN

抄録

  After a taxonomic revision of the family Ditrichaceae of Japan, Korea and Taiwan, there remain 8 genera and 20 species, including one new species (Ditrichum sekii). Cladistic relationships among the genera of the Ditrichaceae were explored. Some taxa were reduced to the synonymy of the species indicated in brackets: Ditrichum subtortile Card. [= D. heteromallum (Hedw.) Britt.], D. divaricatum Mitt. var. exaltatum Card. [= D. divaricatum Mitt.], and Pleuridium colei (Robins.) Deguchi et Matsui [= Pseudephemerum nitidum (Hedw.) Hag.]. Detailed descriptions, taxonomic notes, illustrations and distribution maps of each species as well as keys to the genera and species are provided.