Matayba peruviana subsp. oligandra

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Matayba peruviana subsp. oligandra

Description

Shrub or tree, 2.5-20 m tall. Stems tomentulose, glabrescent. Leaves paripinnate; petiole plus rachis 7-29 cm long, tomentulose; petiolules 3-5 mm long, slightly swollen at base; leaflets 8-16, subopposite or alternate, chartaceous to coriaceous, oblong-elliptic or oblong, 4-9.5 (-15.5) × 2-3.5 (-6) cm, the base inequilateral, the apex abruptly acuminate to caudate, the margins entire, usually revolute; abaxial surface appressed-pubescent or glabrescent, usually barbate at axils of secondary veins, midvein strongly prominent, tertiary veins reticulate. Thyrses axillary, 6-18 cm long, paniculate, axes appressed-pubescent to tomentulose, slightly striate. Flowers in simple (by abortion), pedunculate dichasia. Calyx cup-shaped, pubescent, ca. 1 mm long, the lobes triangular, ca. 0.7 mm long; petals whitish, obovate, 1-1.5 mm long, adaxially pubescent, clawed at base; appendage 2, lanose, widely falcate, as long as the petal, basal-marginal; disc annular, glabrous, slightly lobed; stamens 5-8, 3-3.5 mm long, lanose on lower ¼; ovary trigonous, appressed-pubescent, trilocular. Capsule long-stipitate (stipe 6-8 mm long), globose-trigonous or trigonous-turbinate, glabrous or puberulent, reddish, apiculate, 8-10 mm long. Seed usually one per fruit, dark brown or black, ellipsoid, completely covered by a white arillode.

Distribution

Guianas present, Southern America: Bolivia (Bolivia present); Brazil North (Amazonas present, Pará present); Peru (Peru present); Venezuela (Venezuela present)
A variable species (with two or more subspecies to be recognized), known from Venezuela, the Guianas, Peru, Bolivia, and the Brazilian states of Amazonas and Pará. Matayba peruviana subsp. oligandra is distributed in Venezuela, the Guianas, the Brazilian states of Amazonas and Pará, and Peru (GU: 4; SU: 3; FG: 1).

Notes

Matayba peruviana subsp. oligandra is distinguished from the typical M. peruviana subsp. peruviana by it glabrous to pubescent (not tomentose) branches and inflorescence axes. The typical subspecies has been collected in Bolivia, Peru, and Venezuela.