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 / 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 / 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 / mus / type / lata / peru and 4858 more

By Standley, Paul Carpenter, 1884-1963 / Williams, Louis Otho, 1908- . Genre ncgt--- / Botany / Guatemala . Names fruit / leaves / corolla / apex / type and 2320 more

By Gentry, Johnnie Lee. / Standley, Paul Carpenter, 1884-1963 . Genre ncgt--- / Compositae / Botany / Guatemala . Names leaves / calyx / corolla / fruit / mexico and 6427 more