Pepinia martinellii (Bromeliaceae), an Unusual New Species from Para State, Brazil

摘要

Pepinia martinellii from Para State is described. It is compared and contrasted with P. limae (L.B.Sm.) Varad. & Gilmartin from Ceará State. The genus Pepinia contains 56 species (Luther, 2006), 14 so far recorded in Brazil. The genus differs from the larger Pitcairnia by a more restricted, mostly circum-Amazonian distribution and alate, not caudate seeds. Plant incompletely known, clustering. Leaves densely rosulate, apparently monomorphic, 25 to 30 in number, 65-100 cm long, very thin and delicate. Leaf sheaths ovate 5-10 X 8-10 mm, nerved, lustrous, sparsely pale stellate-lepidote especially abaxially, forming an ovoid pseudo-bulbous base. Leaf blades setaceous, 1-3 mm wide, involute, with a few brown antrorse 0.25-0.50 mm long marginal spines toward the base, elsewhere entire, very sparsely pale-lepidote especially abaxially.