Pteronia glabrata L.F.

A bush up to ? ft. high; branches opposite, brown when dry, glabrous. Leaves opposite, quite free from each other at the base, linear, often somewhat falcate, rounded at the apex, 1-2.5 cm long, 2.5-6 mm broad, flat, 1-nerved, fleshy, glabrous, finely longitudinally wrinkled when dry. Heads terminal, solitary, campanulate, 1.5-2 cm long, nearly 2 cm in diameter. Involucral bracts about 5-seriate, gradually increasing in size upwards; the outermost broadly ovate, about 3 mm long; the innermost linear-oblong, 1.5 cm long, all rounded at the apex, with narrowly membranous margins, glabrous. Receptacle flat or slightly concave, honeycombed, and fimbriate, about 8 mm in diameter. Corolla 1 cm long, slightly and gradually widened upwards, glabrous; lobes linear-lanceolate, subacute, 2 mm long. Anthers exserted 1.5 mm from the tips of the lobes. Achenes 3.5 mm long, densely appressed silky-villous. Pappus brownish-yellow, 1 cm long.