228 ANNALS NEW YORK ACADEMY OF SCIENCES 



Specimens examined: Mazatlan, Brandegee, (N) ; Culiacan, Sinaloa, 

 Brandegee, Oct. 11, 1904 (G). 



, 89. Ipomcea pandurata (L.) G. F. W. Mey. Prim. Fl. Esseq. 100. 

 1818.— Small, Fl. Southeastern U. S. 962. 1903. 



Convolvulus foliis inferioribus cordatis, superioribus trilobis, etc. Gronov. Virg. 141. 



Convolvulus panduratus L. Sp. PI. 153. 1753. Ell. Bot. S. C. &Ga. 1: 254. 1817. 



Convolvulus ciliolatus Michx. Fl. Bor.-Am. 1; 139. 1803. 



Convolvulus candicans Soland; Sims, Bot. Mag. pi. 1603. 1813. 



Ipomoea ciliosa Pursh, Fl. Am. Sept. 1: 146. 1814. 



/pomaa ciZio/ata Pers. Syn. 1: 183. 1805.— G. Don, Gen. Syst. 4: 270. 1838. 



Ipomoea candicans G. Don, Gen. Syst. 1. c. 273. 



Convolvulus rubescens Choisy in DC. Prodr. 9: 338. 1845. 



Type locality: Virginia. 



Distribution : Dry fields, southern Ontario, New York and Connecticut 

 to Michigan, Kansas, Florida and Texas. 



Illustrations: Dill. Elth. pi. 85, f. 99. Plukn. Amalth. pi. 385. f.3. 

 Bot. Mag. pi. 1603, 1939. Bot. Reg. pi. 588. Britt. & Br., Illus. Fl. 3: 

 /. 2945. 



90. Ipomcea sabulosa sp. nov. 



Ipomoea pandurata Conzatti & Smith, Syn. Fl. Max. 3: 48. 1895. 



Resembling the preceding species; perennial from a tuberous root; foliage 

 minutely pubescent; leaf-blades ovate, acuminate, shallowly-cordate or subtruncate, 

 5-8 cm. long; peduncles 1- to 3-flowered, the subulate bracts 5-8 mm. long and 

 often not opposite when the peduncle is 1-fiowered; outer sepals about 10 mm. long, 

 acute, pubescent, inner ones 12-14 mm. long by 3-4 mm. wide, obtuse and sub- 

 membranaceous; corolla 5-6 cm. long, constricted within the calyx, creamy-white 

 with magenta base; limb 6-7 cm. broad with 5, rounded lobes. 



Mexico: Oaxaca; Jayacatlan, Rev. L. C. Smith 14^, 1894 (t}^e G). 

 San Luis Potosi; Villar, Pringle 5473, 1893 (G). 



Ipomoea sabulosa mollicella var. nov. 



Leaf-blades entire or hastately lobed; softly and densely velvety-canescent; 

 sepals 10-12 mm. long. 



Mexico: Oaxaca, Cuesta de Dominguillo, 4000 ft. alt. Albert L. Smith 

 640, 1895 (type — G). 



Ipomoea sabulosa hirtella var. nov. 



Leaf-blades ovate to oblong-ovate, hirsute above with harsh, conspicuously 

 whitish hairs, more densely so beneath; rarely glabrate above. 



