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ANNALS NEW YORK ACADEMY OF SCIENCES 
Specimens examined: Mazatlan, Brandegee, (N); Culiacan, Sinaloa, 
Bran degee, Oct. 11, 1904 (G). 
89. Ipomcea pandurata (L.) G. F. W. Mey. Prim. FI. Esseq. 100. 
1818.— Small, FI. Southeastern U. S. 962. 1903. 
Convolvulus foliis injerioribus 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. FI. Bor.-Am. 1: 139. 1803. 
Convolvulus candicans Soland; Sims, Bot. Mag. pi. 1603. 1813. 
Ipomcea ciliosa Pursh, FI. Am. Sept. 1 : 146. 1814. 
Ipomcea ciliolata Pers. Syn. 1 : 183. 1805.— G. Don, Gen. Syst. 4 : 270. 1838. 
Ipomcea 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. j.3. 
Bot. Mag. pi. 1603, 1939. Bot. Reg. pi. 588. Britt. & Br., Illus. FI. 3: 
/. 291 + 5 . 
90. Ipomcea sabulosa sp. nov. 
Ipomcea pandurata Conzatti & Smith, Syn. FI. Mex. 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-flowered; 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 11+2, 1894 (type G). 
San Luis Potosi; Villar, Pringle 51+73, 1893 (G). 
Ipomcea 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 
61+0, 1895 (type — G). 
Ipomcea sabulosa hirtella var. nov. 
Leaf-blades ovate to oblong-ovate, hirsute above with harsh, conspicuously 
whitish hairs, more densely so beneath; rarely glabrate above. 
