Monographs Details: Roupala plinervia Cornejo & Bonifaz
Authority: Prance, Ghillean T., et al. 2007. Proteaceae. Fl. Neotrop. Monogr. 100: 1-218. (Published by NYBG Press)
Description:Species Description - Tree, to 12 m tall, and 25 cm diam; inner bark dark red; wood hard. Young branches usually glabrous or glabrescent. Young saplings usually with tomentose, ferruginous to whitish indumentum. Imparipinnate and simple leaves sometimes intermixed on mature individuals; imparipinnate leaves 3- to 17-foliolate, the leaflets 3.7-15.2 × 2-7 cm, the margin entire towards base, towards apex strongly serrate to subentire; simple leaves when mature with petioles 1.9-5 × 0.1-0.17 cm, the lamina coriaceous, usually elliptic to ovate, rarely obovate or suborbicular, 7.2-17 × 3.7-9.7 cm, the base cuneate to obtuse, decurrent on adaxial side of petiole, the apex obtuse to usually acuminate, the margin entire towards base, subentire to serrate towards apex, upper surface glabrous or glabrescent, lower surface with tomentose or scarce pubescence, glabrescent or glabrous; lateral veins 2-3 pairs, plinerved or brochidodromous and strongly ascending. Inflorescence (5-) 10.5-22.3 cm, the rachis tomentose or velutinous to puberulous. Common bracts 0.4-1 × 0.3-0.7 mm; pedicels 1.8-6 mm. Tepals linear-oblanceolate, 9-10.5 × 1-1.2 mm, greenish, tomentose to puberulous outside, rarely glabrous; free part of filament 0.5-1.5 mm, anthers 1.6-3 mm; nectar glands free; ovary ellipsoid to ovoid, 1.5-2.3 × 0.6-1.2 mm, green to brownish when fresh, with velutinous and/or tomentose, golden to ferruginous pubescence; style 7-10 mm, glabrous or sometimes pubescent at base; stigma green when fresh. Fruit narrowly obovoid or ellipsoid-obovoid to ellipsoid, 5.2-5.5 × 1.8-2 cm, with faint venation, the apex rostrate, at maturity greenish black when fresh, dark brown to blackish and shiny when dry, puberulous, glabrescent. Seeds ca. 4.1 × 1.6 cm. Diagnostic characters. This species is easily recognized by the 2-3 pairs of plinerved lateral veins and fruits that are larger than any other species from Ecuador.

Discussion:This recently described Roupala plinervia is similar to Roupala montana var. montana, but seems quite distinct in its 2-3 plinerved lateral veins and the much larger fruit, which is larger than any other species in the Andean region.

Phenology. Flowering in Jan and Jun.

Distribution:Guayas Ecuador South America|