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 / 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 / lata / type / rotundata and 2194 more

By Standley, Paul Carpenter, 1884-1963 / Williams, Louis Otho, 1908- / Nash, Dorothy L. . Genre ncgt--- / Botany / Guatemala . Names calyx / corolla / leaves / seeds / flowers and 9412 more

By Standley, Paul Carpenter, 1884-1963 . Genre ncho--- / Botany / Honduras / Lancetilla Valley . Names america / leaves / flowers / plants / called and 21197 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 n------ / s------ / Botany / America / Plants . Names mus / herb / type / lata / sp and 5661 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 . Genre n------ / s------ / Botany / America / Plants . Names mus / type / herb / lata / costa and 4246 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