Monographs Details: Manettia coccinea Crantz
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Family:Scrophulariaceae
Scientific Name:Manettia coccinea Crantz
Discussion:

Nacibea coccinea Aubl., Pl. Guian. 96. pi. 37, f. 1. 1775.

Type. Ad ripam amnis Galibiensium, French Guiana, Aublet.

Aublet described his Nacibea coccinea as having the calyx 8-lobed, the leaves glabrous, and the orifice of the corolla tube yellow-bearded, although his plate 37, fig. 1 does not show any yellow-haired orifice.

Except for the prevailing number of four calyx lobes, M. spraguei Wernh. cannot be separated from M. coccinea, and I am retaining it as a variety of M. coccinea. Some specimens referred to M. spraguei have 5-6 calyx lobes.