In the first (1903) edition of the Flora of the Southeastern United States (p. 1040), Small elected to set up the genus Stachydeoma to include Hedeoma ciliata Benth. and H. graveolens Chapman. The new genus was distinguished from Hedeoma by a non-gibbous calyx with the throat not closed by hairs, and by two folds in the corolla throat. S. graveole~ts (Chapm.) Small, a perennial, is found only in Florida. S. ciliata (Benth.) Small, an annual, is restricted, as far as known, to sandy soils in southern Texas. No other species have apparently since been published. Examinatiou of collections in the University of Texas Herbarium reveals two additional segregates closely allied to, but distinct from, H. ciliata which are here proposed as new species. The three species may be well keyed on the following characteristics :