Porana decora W. W. Smith, Notes Roy. Bot. Gard. Edinburgh 8: 197. 1914; P. mairei Gagnepain; P. mairei var. holosericea C. Y. Wu; P. microsepala Handel-Mazzetti.

Herbs perennial; indumentum silvery white. Stems glabrescent. Petiole 2.5-8.4 cm; leaf blade broadly ovate-cordate, 8-14 X 4.8-10 cm, abaxially subglabrous to ± shiny grayish white sericeous, adaxially glabrous to sparsely strigillose. Panicle pendent, 21-33 cm; bracts cordate, sessile, to 4 2 cm, ± deciduous; bracteoles 2, filiform, ca. 3 mm. Pedicel 0.8-1.2 cm. Flowers 1.7-2.3 cm. Sepals lanceolate to subulate, equal, 2-3 mm, ± golden sericeous abaxially, apex recurved. Fruiting calyx loosely clasping; sepals tan to purplish brown, oblong to ± spatulate, flat, unequal, glabrous, outer 3 sepals 2.3-3.1 cm X 6-8 mm, inner 2 smaller. Corolla rose-pink or purplish to white, slender funnelform to nearly salverform; limb 1.5-1.8 cm in diam., subentire, apical hair tufts golden. Stamens unequal, 5-8 mm, glabrous; anthers hastate. Disc absent. Ovary ovoid-conical. Stigma broadly ellipsoid-oblong, emarginate. Fruit tan, reddish, or purple-brown, obovoid, 6-7 X 4-5 mm, glabrous, apiculate. Seed reddish tan, globose to ellipsoid, 4-5 X ca. 4 mm. Fl. Jun-Sep, fr. Oct-Dec.

Forests in river valleys, steep often rocky slopes; 1300-3500 m. S Sichuan, Yunnan [NE India, ?N Myanmar].