Hoffmannia nicotianifolia (M. Martens & Galeotti) L. O. Williams

Hoffmannia affinis Hemsl. Diag. PI. Nov. 31. 1879 A shrub, the branches terete, puberulent when young; leaves opposite, the petioles about 6 mm. long, the blades ovate-oblong, 10-12.5 cm. long, attenuate at the base, obtusely acuminate at the apex, subcoriaceous, minutely puberulent beneath, the costa and veins prominulous; flowers 4-parted, 6-8 mm. long, puberulent, umbellate-cymose, the cymes fasciculate, about 6-flowered, the peduncles slender, 8-16 mm. long, the pedicels 2-4 mm. long; calyx 4-lobate, the lobes rounded; corolla-tube broad, slightly shorter than the lobes; ovary 2-celled.
Type locality: Costa Rica.
Distribution: Known only from the type locality.

Hoffmannia lenticellata Hemsl. Diag. PI. Alex. 30. 1879 A shrub, glabrous throughout, the branches subterete, minutely lenticellate; stipules linear-oblong, 6 mm. long or shorter, deciduous; petioles stout, 0.5-3 cm. long; leaf-blades obovate, obovate-oblong, or elliptic, 10-22.5 cm. long, 5-8.5 cm. wide, long-attenuate at the base, obtusely acuminate at the apex, membranaceous, bright-green above, the costa impressed, paler beneath, the venation prominent, the lateral nerves 1 1-14 on each side, arcuatedivaricate; flowers 4-parted, umbellate-fasciculate, 6 mm. long, long-pedicellate, the cymes several-flowered, ebracteate, shorter than the petioles; calyx and hypanthium 2 mm. long, the calyx truncate or obscurely dentate; corolla-lobes ovate-oblong, about twice as long as the tube; filaments very short, the anthers large; fruit 2-celled, 3 mm. in diameter, bisulcate; seeds numerous, minute, angulate, punetulate.
Tvpk locality: Orizaha, Veracruz.
Distribution: Veracruz to Guatemala, in wet forest.

Hoffmannia rotundata Standley, Contr. U. S. Nat. Herb. 20:
204. 1919.
Branchlets stout, subterete, glabrate, the internodes elongate; leaves opposite, the stout petioles 1.5-3 cm. long, sparsely villosulous or glabrate; leaf-blades broadly oval-elliptic, 10.5-16 cm. long, 6-7.5 cm. wide, very obtuse to acute and short-acuminate, acutish or shortacuminate at the base, membranaceous, dark-green and glabrous above, paler beneath, ferruginous-villosulous, especially on the veins, the costa very stout and prominent, the lateral nerves about 12 pairs, slender, strongly arcuate; cymes dense, sessile, the numerous flowers sessile or short-pedicellate; calyx and hypanthium sparsely ferruginousvillous or glabrate, 2-2.5 mm. long, the hypanthium turbinate, angulate, the calyx-lobes deltoid, acute, shorter than the hypanthium; corolla 6-8 mm. long, glabrous outside or with a few scattered hairs, the lobes lance-oblong, acutish, twice as long as the tube.
Type locality: Cerro del Boqueron, Chiapas. Distribution: Known only from the type locality.

Hoffmannia nicotianifolia là một loài thực vật có hoa trong họ Thiến thảo. Loài này được (M.Martens & Galeotti) L.O.Williams mô tả khoa học đầu tiên năm 1973.