236 
ANNALS NEW YORK ACADEMY OF SCIENCES 
112. Ipomoea tenuiloba Torr. Bot. Mex. Bound. 148. 1859.— A. Gray, 
Syn. FI. N. Am. 2: Suppl. 434. 1886. 
Type locality : Near Puerto de Paysano, western Texas. 
Distribution: Hills and rocky places, western Texas to southern 
Arizona and adjacent Mexico. 
Specimens examined: Near Puerto de Paysano, Bigelow (type — 
C); C. Wright 1617, (G). Valley of the Rio Grande, below Donana, 
Parry 989 (G). 
113. Ipomoea pilosissima Mart. & Gal. Bull, in Acad. Brux. XII. 2: 
264. 1845.—Walp. Rep. 6: 535. 1847. 
Slender, twining, pilose or hirsute; leaf-blades 5- to 7-pedately parted, the seg¬ 
ments ovate-oblong, 3-5 cm. long, acuminate or attenuate, densely sericeous-pilose; 
peduncles 5-7 cm. long, 1-flowered; sepals densely setaceous-hirsute, lanceolate, 
acute, equal; corolla campanulate-funnelform, purple, 4-5 cm. long. 
Type locality: Sierra de Yavezia, and near Oaxaca, Mexico. Not 
known by any recent collections. 
114. Ipomsea leptosiphon S. Wats. Proc. Am. Acad. 23: 280. 1880. 
Leaf-segments 5, filiform, 4-6 cm. long; peduncles 1-flowered; sepals unequal, 
oblong-lanceolate, acute, 8-10 mm. long, the outer ones muricate-keeled; corolla 
slender, 8-10 cm. long, white with a pink or rose-colored limb. 
Type locality: Near Chihuahua, Mexico. 
Distribution: Thin gravelly soil, northern Mexico. 
Specimens examined: Chihuahua; Pringle 1387, 1887 (type — G, C, 
N); Townsend & Barber 271, 1889 (N, Y); E. W. Nelson 4-822, 1898 (N); 
E. W. Nelson 6159a, 1899 (N). 
115. Ipomoea muricata Cav. Ic. 5: 52. pi. 478. /. 2. 1794. Not I. 
muricata Jacq. 1798. 
Convolvulus capillaceous H. B. K. Nov. Gen. & Sp. 3: 97. 1819. 
Ipomoea armata Roem. & Schult. Syst. 4: 214. 1819. 
Cantua tuberosa Roem. & Schult. 1. c. 893. 
Ipomoea capillacea G. Don, Gen. Syst. 4: 267. 1838.— Choisy in DC. Prodr. 9: 353. 
1845.— A. Gray, Syn. FI. N. Am. 2: Suppl. 434. 1886. 
Leptocallis quinta G. Don, 1. c. 260. 
Leptocallis armata G. Don; Sweet, Hort. Brit. ed. 3, 482. 1839. 
Quamoclit pedata Mart. & Gal. Bull, in Acad. Brux. XII. 2: 270. 1845. 
Type locality: “Habitat in Huanajuato.” 
