Mandevilla andrieuxii (Müll. Arg.) Hemsl.

Mandevilla andrieuxii (Muell.-Arg.) Hemsl. Biol
Centr. Am. Bot. 2: 316. 1881.
Amblyanthera Andrieuxii Muell.-Arg. Linnaea 30: 422. 1860. Echites Andrieuxii Miers, Apoc. S. Am. 206. 1878. Mesechites Andrieuxii Miers, Apoc. S. Am. 235. 1878.
Suffruticose liana; leaves membranaceous, narrowly obovate to ob ovate-lanceolate, 2-5 cm. long, 0.8-1.5 cm. broad, acute to abruptly acuminate, at the base broadly obtuse to rounded , not cordate (at least the upper), puberulent to minutely and sparsely hispidulous above, and glandular at the base of the midrib, densely puberulent to tomentulose beneath, the petioles 3-5 mm. long; racemes alternate-axillary to subterminal, simple, not secund, about as long as the leaves or somewhat longer, lax, bearing 8-12 yellowish flowers of medium size; pedicels 8-10 mm. long; calyx-lobes ovate-lanceolate, acuminate, 4-5 mm. long, sparsely puberulent, the squamellae numerous, indefinitely distributed; corolla infundibuliform, glabrous externally, the tube proper 3-4 mm. long, about 1.5 mm. in diameter at the base, the throat conic, 5-6 mm. long, about 6 mm. in diameter at the orifice, the lobes obliquely obovate, 4 mm. long, spreading; nectaries 5, about as long as the ovary; follicles unknown.
Type locality: San Francisco, near Oaxaca, Oaxaca. Distribution: Oaxaca.