Plantago subg. Coronopus is a mainly Mediterranean group of plantains whose taxonomy is very complex. Two Linnaean names within this subgenus still remain untypified: P. serraria and P. subulata. We here discuss the possible types for these names, and designate lectotypes for both. For nomenclatural purposes, the names P. triquetra and P. pungens are also included in the treatment of P. subulata.