Two new species of Erythranthe sect. Mimulosma (Phrymaceae) from California

Erythranthe trinitiensis Nesom, sp. nov., is endemic essentially to the Trinity Alps of northwestern California (Humboldt, Siskyou, and Trinity cos.). It has been identified as E. pulsiferae but differs most consistently in corolla color and in having inflated calyces. The two species apparently are closely sympatric at least in some areas. Erythranthe taylori Nesom, sp. nov., apparently is narrowly endemic to limestone habitats in northwestern Shasta County. It is distinctive in its petiolate leaves with ovate blades, strongly herkogamous flowers with distinctly 2-lipped corollas, and papillose calyx vestiture.