Porocystis demerarae

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Porocystis demerarae


Small tree. Stems ferruginous-tomentose, becoming glabrous and lenticellate with age. Leaves paripinnate or imparipinnate; petiole plus rachis to 75 cm long, canaliculate on distal portion, puberulent; petiolules 3-6 mm long, enlarged at base, to 5 mm wide; leaflets 9-11, alternate, chartaceous, discolorous, adaxially glabrous, abaxially puberulent, usually drying brownish, elliptic or oblong-elliptic, 15-32 × 6-10.5 cm, the base obtuse to subrounded, slightly unequal, the apex acuminate, the margins entire; venation abaxially prominent, tertiary veins reticulate. Thyrses distal, paniculate, to 60 cm long; axes tomentulose. Flowers in compound dichasia; pedicels ca. 2.5 mm long, articulate at the middle, ferruginous-tomentulose. Calyx ferruginous-tomentulose, 3.5-4 mm long, the lobes ovate, nearly free to base; petals 5, white-green, narrow-elliptic, ca. 5.5 mm long, abaxially densely pubescent; appendage connate to lower half of petal, free part divided into 2, filiform, sericeous-pubescent projections that do not project beyond petals length, the lower half glabrous; disc glabrous; stamens of unequal length, 3-4.5 mm long, the filaments whitishtomentose; ovary densely appressed-cinereous-pubescent. Fruit tricoccate, cinereous-pubescent; mericarps nearly globose, 2.3-3.2 cm long, with papery, wrinkled pericarp.


Guyana endemic
Apparently endemic to Guyana; (GU: 4).