Generic and subtribal classification of american vernonieae
Robinson, Harold.
Generic and subtribal classification of american vernonieae /by Harold Robinson - Washington, D. C. : Smithsonian Institution Press, 1999. - 116 p. : ilus. - Smithsonian contributions to botany ; 89 . - Smithsonian contributions to botany ; 89 .
81735
Flores--Identificación.
Vernonia.
581.463 / R6
Generic and subtribal classification of american vernonieae /by Harold Robinson - Washington, D. C. : Smithsonian Institution Press, 1999. - 116 p. : ilus. - Smithsonian contributions to botany ; 89 . - Smithsonian contributions to botany ; 89 .
81735
Flores--Identificación.
Vernonia.
581.463 / R6