The Nature of the F1 Species Hybrids Between N+łi̲co̲t+łi̲a̲n+ła̲ S̲y̲v̲e̲s̲t+łr+łi̲s̲ and Varieties of N+łi̲co̲t+łi̲a̲n+ła̲ T+ła̲b+ła̲cu̲m̲
Robert Willard Hodgson, William Albert Setchell, Thomas Harper Goodspeed, John Merritt McGee, Pirie Davidson, Roy Elwood Clausen
