Moussonia larryskogii (Gesneriaceae), a new species from Oaxaca and Veracruz, Mexico, is described. This species resembles Moussonia strigosa (C. V. Morton) Wiehler, from Costa Rica, but differs mainly in the vilose pubes cence with adpressed trichomesalmost throughout the entire plant, 2 or 3 leaves per node, lower surface of the leaf not bullate, branched infl orescence a compound cyme, not umbelliform, tubular fl ower, and the obconic tube of the calyx. A possible natural hybrid between this species and Moussonia hirsutissima is presented
