Nautilocalyx adenosiphon
Content
Description
Terrestrial herb, 10-20 cm tall. Stem sappy, creeping or ascending, tomentose at apex, glabrescent below. Leaves equal in a pair; petiole 1-3 cm long, pilose or villous; blade chartaceous when dry, ovate or nearly so, 2-4 x 1.2-2.8 cm, margin crenate-serrate, apex obtuse or acute, base rounded (sometimes subcordate in cultivated specimens)above appressed-pubescent, below minutely pilose. Flowers solitary; epedunculate; pedicel 1.5 cm long, villous. Calyx pale green, lobes connate at very base, 4erect, dorsal one curved around spur, subequal, ovate or narrowly ovate, 1.1-1.2 x 0.4-0.6 cm, margin serrate, apex acuminate, outside pilose, inside glabrous; corolla slightly oblique in calyx, white, 3.5 cm long, tube 2.8 cm long, base spurred, ca. 0.5 cm wide, middle nearly cylindrical, throat not contracted, ca. 1 cm wide, outside pilose, inside pubescent all over, limb ca. 2 cm wide, lobes subequal, spreading, suborbicular, 0.7-0.8 x 0.7-0.8 cm, margin entire; stamens included, inserted near base of corolla tube; ovary ovoid, 0.3 x 0.2 cm, densely pubescent, style 1.2 cm long, sparsely pilose-pubescent, stigma 2-lobed. Mature fruit not seen.