HOUSE, THE GENUS IPOMCEA 239 



Stems densely hirsute with spreading hairs; petioles as long as the leaf-blades; 

 leaf-blades ovate, cordate, acuminate or obtuse, 3-8 cm. long; peduncles 2- to 4- 

 flcwered; sepals 2 mm. long, obtuse; corolla 2-2.5 cm. long; capsules about 4 mm. 

 high. 



Type locality : Near Acapulco, Mexico. 

 Distribution: western Mexico. 



Specimens examined: Oaxaca, E. W. Nelson S18, 1894 (N, Y, G); 

 Manzanillo, Palmer 1363, 1891 (G). 



123. IpomoeafilipesBenth.; Meissn. inMart. Fl. Bras. 7: 274. 1869. 



Stems pubescent or glabrate; leaf-blades orbicular-ovate, 1-3 cm. long, acute, 

 entire or angled, pubescent above, glabrous beneath; peduncles filiform, 5-8 cm. 

 long, 1-3-flowered; pedicels recurved in fruit; sepals 2 mm. long; corolla 10-15 mm, 

 long, white. 



Type locality : About Santarem, on the Amazon River, Brazil. 



Distribution: Thickets, near the coast, western Mexico to Brazil. 



Specimens examined: Sinaloa; Palmer 16^7, 1891 (N, Y). Guerrero; 

 Palmer 109, 1894-5 (N, G, C). Guatemala: W. C. Shannon {John Donnell 

 Smith 4026), 1892 (G). Among the South American specimens of this are 

 HerbeH H. Smith 1589, 1898; Fendler 2089 and Sfruce 886. 



Doubtless identical with Convolvulus minutiflorus Mart. & Gal. 



124. Ipomoea turckheimii Vatke; J. Donnell Smith, Bot. Gaz. 40: 



8. 1905. 



Ipomcea concinna House, Muhlenbergia 3' 42. pi. 2. /. c. 1907. 



Leaf-blades ovate, acuminate, cordate-hastate, 1.5-5 cm. long; petioles 2-5 mm. 

 long, rarely longer; peduncles 3-5 cm. long, 3- to 7-flowered; sepals equal, outer 

 ones acute, inner obtuse, corolla about 2 cm. long. 



Type locality: Coban, Guatemala. 



Distribution: Southern Mexico and Central America. 



Specimens examined: Jalisco, Barcena 553, 1887 (M). Morelos, near 

 Cuemavaca, Pringle 1232, 1896 (G). Guatemala: H. von Tuerckheim 

 (ex J. D. Smith, PI. Guat. 386), 1886 (co-type — G). 



17. Emeticae. Slender-stemmed vines, twining, stems herbaceous from 

 perennial, tuber-like, thickened roots : leaf-blades entire, cordate or cordate- 

 sagittate, usually glabrous: sepals very unequal, obtuse, membranaceous; 

 corollas salverform or funnelform, usually purple. 



Stamens and style exserted; corolla salverform. 



Corolla limb 5 cm. broad or more, tube 5-8 cm. long. 125. 7. purga. 



