Monographs Details: Anacardium corymbosum Barb.Rodr.
Description:Species Description - Subshrub, 50 to 150 cm tall, with large underground trunk and rigidly ascending branches. Leaf blades oblanceolate to broadly obovate or elliptic, 4.5-20.3 x 2.2-10 cm, coriaceous, villous abaxially, glabrous to puberulous adaxially, with 8-17 pairs of lateral veins, prominent abaxially, prominulous to prominent adaxially, the midrib very prominent abaxially, impressed to prominulous adaxially; base usually auriculate, occasionally attenuate or obtuse, frequently asymmetrical; apex rounded or obtuse, occasionally retuse, emarginate, or truncate; petiole lacking. Inflorescences densely congested, 16-22 x 6-15 cm, villous, the peduncle 1-4 cm long, the upper bracts lanceolate to narrowly ovate, sepal-like, the lower bracts obovate or elliptic, leaf-like, villous abaxially, often cream or light green adaxially, the bracts subtending cymes spathulate, the pedicels 2-3 mm long, densely pubescent to villous. Bisexual flowers: corolla cylindric, 2-3 mm diam.; sepals lanceolate, (2.5-)3-4.5 x 0.8-1.3 mm, densely pubescent to villous abaxially, puberulous adaxially; petals reflexed, linear to lorate, 6-7.2 x 0.9-1.5 mm, densely pubescent abaxially, puberulous adaxially, white or light yellow, occasionally pale green, often with pink or red lines at anthesis, turning dark red after fertilization; stamens 4-6, with one stamen much larger, the largest filament 4.5-5.5 mm long, the remaining filaments shorter, 1-2 mm long, with no apparent thecae, their apices globose; staminal tube 0.2-0.3 mm long; ovary 1.3 x 1.2 mm, the apex sparsely puberulous, the style central, awl-shaped, 5.5 mm long, the stigma punctiform. Staminate flowers with pistillode 0.2-1 mm long. Hypocarp obconical to pyriform, 2.5 x 2 cm, red. Drupe subreniform, 1.5-2 x 1-1.7 cm, dark brown at maturity.
Discussion:Type. Brazil. Mato Grosso: Rio da Casca, Serra da Chapada, cited in Barbosa Rodrigues, no extant collection (Lectotype, Tabula 5 in Barbosa Rodrigues, here designated).
Local names and uses. Brazil: Cajú rasteiro, cajuzinho. The hypocarp is eaten raw by local people.