Taxonomic and nomenclatural notes on Luzula subg. Pterodes

New taxa and combinations are given resulting from a revision of Luzula subg. Pterodes (Griseb.) Buchenau for the monographic treatment of Juncaceae for Species plantarum: Flora of the world. Luzula jimboi Miyabe et Kudo subsp. atrotepala Z. Kaplan, subsp. nova, and L. plumosa E. Mey. subsp. dilatata Z. Kaplan, subsp. nova, are described. Three new combinations, L. forsteri (Sm.) DC. subsp. rhizomata (Ebinger) Z. Kaplan, comb. nova, L. acuminata Raf. subsp. carolinae (S. Watson) Z. Kaplan, comb. nova, and L. plumosa E. Mey. subsp. reflexa (Ebinger) Z. Kaplan, comb. nova, are proposed for taxa with obvious geographically correlated variations. Identity of L. cechica Domin, a name proposed for the putative hybrid of L. luzuloides × L. pilosa, and that of a misapplied name L. rostrata Buchenau is elucidated. Diagnostic characters of members of taxonomically difficult groups are given. Eight names are lectotypified.