stem several ft. long, twining, thinly and minutely pubescent along one side or glabrous; leaves herbaceous; petiole 3–10 lin. long, minutely pubescent in the channel only; blade 1–3 1/4 in. long, 1/2–1 3/4 in. broad, elliptic or elliptic-oblong, or the smaller sometimes lanceolate, acuminate, acute, or obtuse and apiculate, rounded or subcordate at the base, sometimes faintly sinuous at the margins, thinly puberulous (or glabrous, see note below) on both sides, very minutely adpressed-ciliate; peduncles lateral at the nodes, slender, ultimately 1–1 3/4 in. long, glabrous, racemosely 2–4-noded, with 2 flowers at a node, developing successively; pedicels 1/4– 1/3 in. long, glabrous; sepals 1 1/4–1 1/2 lin. long, lanceolate, acuminate, very slightly pubescent; corolla-tube slightly curved, 2/3 in. long, slightly ovoid-inflated and 2–2 1/2 lin. in diam. at the base, which gradually narrows into the 1/8 in. in diam. cylindric part above, enlarging to about 1/4 in. in diam. at the mouth, glabrous outside, pilose within to the base with very fine hairs, invisible when wetted, apparently dark purple-brown or perhaps spotted with that colour at the base, shading into greenish above; lobes 2 1/2–3 lin. long, connivent or incurved-connivent, connate at the tips, deltoid-lanceolate, deltoid-ovate, or oblong-ovate, tapering to the apex, replicate, 1/2– 3/4 lin. broad across the side, ciliate with long pale purple or white hairs along the fold or keel of the inner face, otherwise glabrous and apparently greenish or yellowish, with slightly darker edges; outer corona very shortly cupular at the base rising behind the inner corona-lobes into 5 cuneately subquadrate lobes 1/2 lin. long, with the shoulders produced into 2 widely spreading deltoid or deltoid-linear acute or obtuse teeth at the top, ciliate and hairy on the inner face with long white hairs; inner corona-lobes 1 1/4–1 1/3 lin. long, triquetrous-subulate or compressed linear-falcate acute (or obtuse in Schlechter, 4543, see note below), connivent-erect, with falcately recurving or diverging tips, dorsally connected at the base with the outer corona, glabrous, dark purple-brown. null
