Flora morphology and systematics of Lamourouxia (Scrophulariceae: Rhinanthoideae)Wallace Roy Ernst · First published 1972Open the Tome
Floral morphology and sytematics of Platystemon and its allies Hesperomecon and Meconella (Papaveraceae, Platystemonoideae)Wallace Roy Ernst · First published 1967Open the Tome
The genera of Papaveraceae and Fumariaceae in the southeastern United StatesWallace Roy Ernst · First published 1962Open the Tome