By Standley, Paul Carpenter, 1884-1963 / Steyermark, Julian A. (Julian Alfred), 1909- . Genre nc----- / Botany / Central America . Names mus / ca / leaves / type / american and 6081 more

By Standley, Paul Carpenter, 1884-1963 / Williams, Louis Otho, 1908- . Genre ncgt--- / Rubiaceae / Guatemala / Botany / Guatemala . Names leaves / corolla / calyx / flowers / mexico and 16991 more

By Standley, Paul Carpenter, 1884-1963 . Genre n------ / s------ / Botany / America / Plants . Names mus / herb / type / lata / sp and 5791 more

By Standley, Paul Carpenter, 1884-1963 / Williams, Louis Otho, 1908- / Gibson, Dorothy N. . Genre ncgt--- / Botany / Guatemala . Names leaves / corolla / calyx / flowers / mexico and 9601 more

By Standley, Paul Carpenter, 1884-1963 . Genre s------ / nc----- / Rubiaceae / South America / Rubiaceae and 1 more . Names herb / type / mus / calyx / lata and 6039 more

By Standley, Paul Carpenter, 1884-1963 . Genre n------ / s------ / Botany / America / Plants . Names mus / ca / lata / type / herb and 2215 more

By Standley, Paul Carpenter, 1884-1963 . Genre Botany / Mexico / Yucatn (State) . Names leaves / flowers / sp / type / herb and 23352 more

By Standley, Paul Carpenter, 1884-1963 . Genre s------ / nc----- / Rubiaceae / South America / Rubiaceae and 1 more . Names herb / mus / type / lata / peru and 4858 more

By Standley, Paul Carpenter, 1884-1963 . Genre n------ / s------ / Botany / America / Plants .

By Standley, Paul Carpenter, 1884-1963 . Genre n------ / s------ / Botany / America / Plants . Names mus / sp / folia / herb / type and 5567 more