202 ANNALS NEW YORK ACADEMY OF SCIENCES 



3-5-lobed, pubescent above; sepals glabrous 2.5-3 cm. long, acuminate; corolla 

 white with a pink or purplish limb. 



Type locality : Southeastern border of Arizona, near Santa Cruz. 



Distribution : Southern Arizona and Sonora. 



Specimens examined: Thurber 966, 1857 (type — G); C. Wright, 

 1851 (G). Tanner's Canon, near Ft. Huachuca, Lemmon 2833, 1882 

 (G, N). Wilcox 356 & 1^25, 1894 (N). 



39. Ipomcea barbigera Sweet, Brit. Fl. Gard. 1 : fl. 86. 1823. 



Pharbitis barbigera G. Don, Gen. Syst. 4: 262. 1838. 



Ipomcea hederacea var. integrifolia Hallier f. in Jahrb. Hamb. Wiss. Anstalt. 16: 42. 

 1898. 



Convolvulus caeruleus minor, folio subrotundo, Dill. Hort. Elth. 97. and therefore 

 C. hederaceus (3, L. Sp. PI. 154. 1753. and Ipomcea purpurea /3, Roem. & Schult. 

 Syst. 4: 232. 1819. 



Leaf-blades orbicular-ovate, entire or deeply 3-lobed, thick-textured, ciliate, 

 densely appressed hirsute with silky hairs above; sepals densely hirsute, 15-25 mm. 

 long with spreading, ciliolate tips; corolla 3-3.5 cm. long, deep-blue with purple 

 rays and a white tube. 



Type locality: Mississippi (Dill.). 



Distribution: Sandy fields and thickets, Georgia and Florida to 

 Alabama and Mississippi and Louisiana. 



Illustrations: Dill. Hort. Elth. pi 82. f. 94. Sweet, 1. c. 



Specimens examined: Georgia; Cuthhert, 1900. Pollard & Maxon 

 438, 1900 (N). Florida; Eustis, Nash 2482, 1895 (Y). Jacksonville, 

 Curtiss 6529, 1899 (N, Y). Tallahassee, Berg (Y). Mississippi; Schue- 

 bert, 1896 (Y). Louisiana; Vicinity of Alexandria, C. R. Ball 597, 1899 

 (N, Y, G). 



40. Ipomcea hederacea (L.) Jacq. Collect. 1: 124. 1786. — Britton, 

 1. c. 752. 



Convolvulus calycibus tuberculatis pilosis, L. Virid. Cliff. 18. — Hort. Ups. 38. — 

 Gronov. Virg. 141.— Roy. Lugdb. 428. 



Convolvulus Virginianus elegans, incanis foliis tripartito divisis, flore amcena 

 purpureo, Pluk. Phytogr. 3: pi. 451. f. 7. 1692. 



Convolvulus caeruleus, hederaceo folio, magis anguloso, Dill. Hort. Elth. 1: 96. 

 1732. 



Convolvulus hederaceus -q L. Sp. PI. 154. 1753. Spreng. Syst. 1: 593. 1825. 

 Convolvulus Nil L. Sp. PI. ed. 2, 219. 1762 (in part as to the above Dillenian cita- 

 tion),— Michx. Fl. Bor.-Am. 1: 189. 1803. 



