Monographs Details: Pagamea duidana Standl. & Steyerm.
Authority: Maguire, Bassett. 1965. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 12 (3): 1-285.
Description:Latin Diagnosis - Costa media laminarum foliorum subtus plerumque puberulens.

Distribution and Ecology - Distribution. Sandstone table mountains (Cerro Duida and Cerro de la Neblina), Territorio Federal Amazonas, Venezuela, at alt. 1450-1675 m. Besides the holotype collection, the following collections belong here: Along valley forest between Central Camp and Brocchinia Hills, summit of Cerro Duida Steyermark 58116; summit of Cerro de la Neblina, Maguire, Wurdack & Buntinq 37339.

Discussion:This species resembles P. montana, but has a longer, more infundibuliform corolla-tube, relatively sparsely villosulous inner surface of the corolla-lobes with a glabrate part towards the apex, and barbate axils of the lower leaf surface.