Towards a better understanding of the Najas marina complex: Notes on the correct application and typification of the names N. intermedia, N. major, and N. marina

摘要

Three of the names used in the Najas marina complex, N. intermedia, N. major and N. marina have been applied contradictorily to two clearly distinct taxa in the past. The history of this nomenclatural confusion is outlined here, including corrected typifications for N. major and N. marina. A new lectotype for N. intermedia is designated and the name is proposed as a heterotypic synonym of N. marina. Najas major and N. marina are considered to be the correct names for N. marina subsp. marina auct. and N. marina subsp. intermedia auct., respectively, independent of the taxonomic rank both may be assigned to.