HOUSE, THE GENUS IPOMGEA 237 



Distribution: New Mexico and Arizona to northern South America. 



Specimens examined: New Mexico; Rushy 301, 1881; Arizona; 

 Leiherg 5898, 1901; Rothrock 623, 1874; Wilcox 348, 1894; Lemmon 443, 

 1881 and 2836, 1882; Nealhj 187, 1891; Griffiths 5432, 1903. Lower Cali- 

 fornia, Brandegee, 1899. 



Sonora; Thurber 964, 1851 (G). Lower CaHfomia; Brandegee, 1899 

 (N). Durango; Palmer 302, 1896 (N, G, Y); E. W. Nebon, 4640, 1898 

 (N). Chihuahua; Pringle 580, 1885 (G). Tepic; Rose, 1897 (N); Quere- 

 taro; Rose, Painter & Rose 9540, 1905 (N); Jahsco; Barcena562, 1887 (M); 

 Pringle 11048, 1902 (N, Y). Federal Dist. Coulter 1036 (G); Rose Painter 

 & Rose 8515, 1905 (N). Oaxaca; Rev. Lucius C. Smith 472, 1895 (G). 

 Chiapas; E. W. Nelson 2879, 2946, 1895 (N). 



i 116. Ipomcea patens (A. Gray) comb. nov. 



Ipomoea muricata Roth. Bot. Wheeler 204. 1878. Not I. muricata Cav. 1794. 

 Ipomcea cajrillacea var. patens A. Gray, Syn. Fl. 2: Suppl. 434. 1886. 



Type locality: Southern Arizona. 



Distribution: Southern New Mexico, Arizona and adjacent Mexico. 



Specimens examined: New Mexico; C Wright 1616, 1851 (type — G. 

 C). 0. B. Metcalfe 271, 1903 (G). Arizona; Wilcox, 1893 (N); Sonora; 

 Thurber 967, 1851 (C); Chihuahua; Pringle 841, 1886 (C, N); 1340, 1887 

 San Luis Potosi; Parry & Palmer 626, 1878 (G, N). Coahuila, Palmer 

 910, 1880 (N, G). 



117. Ipomoea plummerse A. Gray, Syn. Fl. N. Am. 2 : Suppl. 434. 1886. 



Type locality: Southern Arizona. 



Distribution: Gravelly slopes of the higher mountains of southern 

 Arizona and New Mexico to Chihuahua, Mexico and in the Bolivian Andes. 



Specimens examined: Arizonsi; Lemmon 2839, 1882 (type — G) ; Tourney 

 1894; MacDougal 382, 1898 (Y); Dr. Lour 324, 1873 "(G); Wright 1616 

 in part (G). New Mexico; Earle 492, 1900 (Y). Chihuahua; Townsend 

 & Barber 228, 1899 (N); E. W. Nehon 6085, 1899 (N). 



' 118. Ipomoea lemmoni A. Gray, Proc. Am. Acad. 19: 90. 1883. — 

 Syn. Fl. N. Am. 2: Suppl. 434. 1886. 



Type locality: Mountains near Ft. Huachuca, Arizona. 

 Distribution: Mountains and canons of southern Arizona. 

 Specimens examined: Lemmon 2840, 1882 (type — G, N). 



