Plantago truncata subsp. firma, only, treated in The Jepson Manual [Ed. 1]; author citation corrected to Plantago truncata Cham. & Schltdl., from Plantago truncata Cham. previously in The Jepson Manual [Ed. 1] and this Index, 20 May 2011, because Cham. & Schltdl. indicated on title page to be authors of paper in which protologue appears.]