Matayba laevigata

Primary tabs

Matayba laevigata


Tree to 18 m tall. Stems ferruginous-puberulent, glabrescent. Leaves paripinnate; petiole plus rachis 5.5-20 cm long, slightly marginate, puberulent; petiolules 3-5 mm long, widened at base, usually drying blackish; leaflets 4-8, alternate, chartaceous, glabrous or abaxially puberulent, elliptic, oblanceolate, 3-14 × 2.2-6 cm, the base slightly unequal, acute or obtuse, the apex obtusely acuminate, acuminate or obtuse and usually emarginate, the margins entire, crenulate, and slightly revolute; abaxial surface with prominent midvein, and one or two domatia in the axil of the lowest secondary veins, tertiary veins reticulate. Thyrses axillary, to 20 cm long, paniculate; axes puberulent to appressedly pubescent, slightly striate. Flowers in compound, sessile or shortly pedunculate dichasia; pedicels 0-1 mm long, pubescent. Calyx cup-shaped, albo-pubescent or sparsely so, ca. 0.8 mm long, the lobes triangular-rounded, 3-4 mm long; petals white, cuneate, ca. 1.5 mm long, retuse or truncate at apex; appendages 2, lanose, as long as the petal, marginal; disc glabrous, annular; stamens 8, 2-2.5 mm long, the filaments pubescent on lower half; pistillode lanose; ovary sericeous-tomentose. Capsule sessile or short-stipitate, globose or globose-bilobed, ca. 2 cm in diam., glabrous, verrucose when mature, pericarp woody, endocarp densely wooly. Seeds ca. 1 cm long, ellipsoid, almost completely covered by a white arillode, except for the dorsal portion of apex which is black and shiny.


Guianas present, Southern America: Brazil North (Pará present)
Known from Brazil (Pará) and the Guianas (GU: 2; SU: 4; FG: 8).

Common Name

English (French Guiana): gangouti; English (Suriname): sirada djamaro