234 ANNALS NEW YORK ACADEMY OF SCIENCES 



104. Ipomoea costellata Torr. Bot. Mex, Bound. 149. 1859.— A. Gray, 

 Syn. Fl. N. Am. 2': 214. 1878. 



Type locality: Mouth of the Pecos River, western Texas. 



Distribution: Arid regions of western Texas, New Mexico, Arizona 

 south to the Valley of Mexico. 



Specimens examined: Texas; Wright 505 (type — G, C, N); Havard 

 47, 1883; Hayes, 1858; Neatly 624, 1889; Coues & Palmer 29, 1865 (G). 

 New Mexico; Fendler 665, 1847 (G); Wright 1615 (G, C); Earle 331, 1900 

 (Y); Rushy 299, 1881 (C); Metcalfe 766, 1903 (Y); Parry 997 (C); Mul- 

 ford nil, 1895 (Y). Arizona; Lemmon U2, 1881 (N, Y); Wilcox 351, 

 1894 (N); Griffiths 5976, 1903 (N); Tourney, 1894 (Y); Pringle, 1884 (C); 

 Rothrock 623a, 631, 520, 679, 1874; Thurber 1057, 1851 (G). 



Lower California, Brandegee, 1893; Durango, Palmer 649, 1896 (N, Y, 

 G); Coahuila; Palmer 2095, 1880 (N, G); Sonora; C. E. Lloyd 430, 1894 

 (G); Chihuahua; Townsend & Barber 383, 1899 (N, Y, G); Palmer 104, 

 1885 (N, C). Valley of Mexico, Borgeau 726, 1865-66 (G). 



105. Ipomoea painteri House, Muhlenbergia 3: 41. pZ. 3. f. 1. 1907. 



Resembling /. costellata; stems finely hirsute; sepals broadly lanceolate, the 

 outer ones 5 mm. long, the inner 6-8 mm. long; each plicae of the limb ending in 2, 

 minute, black cusps at the margin. 



Type locality: Guadeloupe, Federal Dist., Mexico. 

 Distribution: Stony hillsides, central Mexico. 



Specimens examined: Rose & Painter 6826, 1903 (type — N); Quere- 

 taro; Hacienda Ciervo, San Juan del Rio, Rose, Painter & Rose9Q32, 1905 



(N, Y). 



106. Ipomoea wrightii A. Gray, Syn, Fl. N. Am. 2: 213. 1878. 



Type locality: Western Texas. 

 Distribution: Western Texas. 



Specimens examined: Wright (type — G). Apparently closely related 

 to, if not identical with I. pulchella. 



107. Ipomoea delphinifolia Mart. & Gal. Bull. Acad. Brux. XH. 2: 



265. 1845.— Walp. Rep. 6: 535. 1847. 



Closely related to /. leptotoma, but described as having pubescent and pilose- 

 ciUate leaf-blades; sepals about 6 mm. long, and corolla 4-5 cm. long, purple. 



Type locality: Tehuacan, Puebla, Mexico. Not known by any recent 

 collections. 



