518 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



1. Ipomoea leptophylla Torr. Frem. Rep. Exped. Rocky Mount. 94. 1845. 

 Convolvulus canadensis Buckl. Proc. Acad. Phila. 1862: 6. 1862. 



Type locality: "Forks of the Platte to Laramie river." 



Range: Montana and South Dakota to Texas and northeastern New Mexico. 

 New Mexico: Las Vegas; Sierra Grande; Cross L Ranch; Nara Visa; Clayton; 

 south of Melrose. Plains and low hills, in the Upper Sonoran Zone. 



2. Ipomoea tenuiloba Torr. U. S. & Mex. Bound. Bot. 148. 1859. 



Type locality: "Hills and rocky places near Puerto de Paysano, western Texas." 

 Range: Western Texas and southern New Mexico. 

 New Mexico: Guadalupe Mountains (Bailey 720). 



3. Ipomoea muricata Cav. Icon. PI. 5: 52. pi. 478./. 2. 1794. 

 Convolvulus capillaceus H. B. K. Nov. Gen. & Sp. 3: 97. 1819. 

 Ipomoea capillacea Don, Hist. Dichl. PI. 4: 267. 1838. 

 Ipomoea capillacea patens A. Gray, Syn. Fl. ed. 2. 2 1 : 434. 1886. 

 Ipomoea patens House, Ann. N. Y. Acad. 18: 237. 1908. 



Type locality: "Habitat in Huanajuato," Mexico. 



Range: New Mexico and Arizona to Mexico. 



New Mexico: Las Vegas; Mogollon Mountains; Hanover Mountain; White and 

 Sacramento mountains. Open slopes in the mountains, in the Transition Zone. 



The form named patens certainly does not deserve nomenclatorial recognition. It 

 is a mere seasonal variation and even at any time in a given spot one may collect 

 both forms. The smaller, more erect plant later becomes spreading and has longer 

 stems and leaf segments. 



4. Ipomoea costellata Torr. U. S. & Mex. Bound. Bot. 149. 1859. 



Type locality: "On the Rio Grande, from the mouth of Pecos to El Paso, and 

 near the Copper Mines of New Mexico." 



Range: Western Texas to Arizona and southward. 



New Mexico: Mangas Springs; Mogollon Mountains; Organ Mountains; Roswell; 

 Queen. Open slopes, from the Lower Sonoran to the lower part of the Transition Zone. 



5. Ipomoea cardiophylla A. Gray, Syn. Fl. 2 1 : 213. 1878. 

 Type locality: "In the mountains near El Paso." 

 Range: Western Texas and southern New Mexico to Mexico. 



New Mexico: Organ Mountains; White Mountains. Canyons, in the Upper 

 Sonoran Zone. 



6. Ipomoea purpurea (L.) Lam. Tabl. Encycl. 1: 466. 1791. 

 Convolvulus purpureus L. Sp. PL ed. 2. 219. 1762. 

 Pharbitis purpurea Voigt, Hort. Calcutt. 354. 1845. 



Type locality: "Habitat in America." 



Range: Throughout tropical America, frequently introduced elsewhere. 



New Mexico: Manzanares Valley; Hillsboro; Mesilla Valley; Gilmores Ranch. 



7. Ipomoea hirsutula Jacq. Eclog. PL Rar. 1: 63. 1811. 

 Ipomoea mexicana A. Gray, Syn. Fl. 2 1 : 218. 1878. 

 Type locality: Mexico. 



Range: Western Texas to Arizona and southward. 



New Mexico: Santa Fe; Pecos; Fort Bayard; Grand Canyon of the Gila; San Luis 

 Mountains; Mesilla Valley; Organ Mountains; White Sands; White Mountains; Gray; 

 Roswell. Waste ground, in the Lower and Upper Sonoran zones. 



8. Ipomoea desertorum House, Ann. N. Y. Acad. 18: 203. 1908. 

 Type locality: Tucson, Arizona. 



Range : Southern Arizona and New Mexico. 



New Mexico: Mesa west of Organ Mountains; Florida Mountains. Dry hills and 

 mesas, in the Lower Sonoran Zone. 



