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ANNALS NEW YORK ACADEMY OF SCIENCES 
tate, acuminate, 3-5 cm. long, basal lobes produced, half as long as the blade, acute, 
divergent; peduncles 1-flowered; sepals lanceolate, acute; corolla rose-purple, limb 
deeply 5-lobed. 
Type locality: Near Oaxaca, Mexico (Andrieux 212). 
Distribution: Mountains of Oaxaca. 
Specimens examined: Pringle 4693, 1894 (G, N, C). C. L. Smith 
910, 1894 (Y, G); Rev. Lucius C. Smith 334, 1895 (G). 
130. Ipomcea urbinei House, Muhlenbergia 3: 41. pi. 2, f. b. 1907. 
Resembling I. simulans ; leaf-blades glaucous and densely pubescent beneath; 
peduncles 1-2-flowered, slightly longer than the petioles and somewhat confluent 
with them at the base; sepals unequal, the inner 8-10 mm. long and 2-3 times as 
long as the outer; corolla scarlet, tubular. 
Type locality: Faldas del Volcan de Colima, Mexico. 
Distribution: Known only from the type locality {Barcena 214, 1881, 
type—M). 
131. Ipomcea suffulta (H. B. K.) G. Don, Gen. Syst. 4: 276. 1838. 
— Robinson & Greenm. Am. Journ. Sci. 50: 160. 1895. 
— Hallier f. Bull. Herb. Boiss. 7: 411. 1899. 
Convolvulus suffultus H. B. K. Nov. Gen. & Sp. 3: 102. 1819. 
Type locality: On the volcanic mountain of Jorullo, Mexico. 
Distribution: Mountains of Oaxaca, Mexico. 
Illustrations: H. B. K. 1. c. pi. 211. 
Specimens examined: Pringle 4755, 1894 (G, N, C). E. W. Nelson 
1541, 1894 (N, G); 3061, 1895 (N); 2920, 1895 (N, G). Rev. L. C. Smith 
141, 1894 (G). 
18. Anisomerse. Twining, annual or perennial vines of various habit; 
stems sometimes woody below, usually not densely pubescent; leaf-blades 
entire or 3-lobed or toothed, rarely somewhat 5-lobed; sepals coriaceous, 
very unequal. 
Leaf-blades linear to broadly lanceolate; corolla small. 
Leaf-blades denticulate-hastate at base; corolla white. 132. I. angustifolia. 
Leaf-blades sagittate or cordate-sagittate. 
Corolla crimson or purplish. 133. 7. tenuissima. 
Corolla white; leaf-blades subsessile. 134. 7. sagittula. 
Leaf-blades ovate in outline. 
Sepals obtuse or merely subacute, not cuspidate. 
Leaf-blades broadly hastate at the base; thick-tex¬ 
tured, basal lobes acute. 
135. 7. callida. 
