Monographs Details: Duroia macrophylla Huber
Authority: Maguire, Bassett. 1965. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 12 (3): 1-285.
Family:Rubiaceae
Scientific Name:Duroia macrophylla Huber
Description:Distribution and Ecology - Distribution. Amazonian basin of Brazil.

Discussion:Coupoui brasiliensis "Wernh., Jour. Bot. 58: 107. 1920, type: region des cataractes Rio Tapajoz, Para, Brazil, 3-1-1918, A. Ducke 16872 (holotype K, isotype US). A specimen of Ducke 22881 from Obidos, Para, has calyx-tubes 19-22 mm long with elongated teeth 2-3 m m long and pedicels elongated from 15-34 mm, whereas Ducke 15570 from Rio Cumina-mirim, Trombetas, Para, has the calyxtubes 11-20 mm long with shorter teeth 0.5-0.75 mm long and pedicels of the staminate flowers 10-18 mm long.
Distribution:Brazil South America|