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Two new species of Aliciella, one from California and Nevada, the other from northeastern Arizona, and a new subspecies of Ipomopsis congesta from the Four Corners region of Arizona, Colorado, New Mexico, and Utah are described and illustrated. From the interface of the Great Basin and Mojave deserts, Aliciella monoensis has long been confused with Aliciella (Gilia) subacaulis, but is distinct morphologically and cytogenetically. In badlands areas of Beautiful Mountain in the Chuska Mountain Range of Arizona, Aliciella cliffordii represents an ethologically unique relative of Aliciella haydenii. Ipomopsis congesta subsp. matthewii has long been confused with I. c. subspp. congesta, crebrifolia and frutescens, but is morphologically and geographically unique.