A major range extension of Blindia robusta (Seligeriaceae, Bryophyta)

Abstract

The endemic species Ditrichum tenuinerve Dixon from Tristan da Cunha is taxonomically evaluated and some details of its type material are illustrated. This species shares the diagnostic characters of Blindia robusta Hampe and the two species are considered to be conspecific. As a result of this taxonomic conclusion the global range of B. robusta is extended to the South Atlantic Ocean and accordingly it has to be considered as a nearly pan-south-temperate, not an amphipacific south-temperate species. The global distribution map for B. robusta is presented.