Rather slender climbers, glabrous throughout. Leaves rather shortly petiolate, basifixed, entire, ovate or oblong-ovate, acuminate, rounded to deeply cordate at the base, 6-13 cm. long, 3-9 cm. broad; petioles 1-3 cm. long, bearing several pairs of small stipitate glands; stipules conspicuously foliaceous, strongly inequi-lateral, narrowly ovate, caudate-cuspidate, entire, 1-4 cm. long. Inflorescences solitary, bearing a single showy purple or lavender-rose flower; peduncles 3-6 cm. long, jointed directly beneath the flower; bracts delicately foliaceous, ovate, rounded or cordate at the base, 1.0-1.5 cm. long. Flowers about 6-8 cm. in di-ameter; sepals ovate-lanceolate, 3-4 cm. long, conspicuously corniculate; petals linear-oblanceolate, about 1.5 cm. long; filaments of the corona in many series, the outermost equaling the petals or somewhat longer. Fruits broadly ovoid, 4-6 cm. long.
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