HOUSE, THE GENUS IPOMCEA 247 



Type locality: Near Zucuapan, Vera Cruz, Mexico. Not known by 

 any recent collections. 



: 142. Ipomoea ■wilsoni House, Muhlenbergia 3: 44. pl.l. f. c. 1907. 



Leaf-blades ovate, deeply cordate, acute, thick, basal lobes slightly angled; 

 peduncles stout, as long as the petioles, cymosely many-flowered; inner sepals 

 oblong, 8-10 mm. long, obtuse, outer ones suborbicular, smaller; corolla slender- 

 funnelform, purple, 5.5-6 cm. long, limb about 4 cm. broad. 



Type locality: Near Puerto Sierra, Honduras. 

 Distribution: Known only from the type locality. 

 Specimens examined: Percy Wilson 530, 1903 (type — Y). 



143. Ipomoea anisomeres Robinson & Bartlett, Proc. Am. Acad. 43: 



57. 1907. 



Perennial, glabrous; leaf-blades ovate, cordate, acute, 6-11 cm. long, paler 

 beneath; petioles 3-5 cm. long; peduncles 3.5-6 cm. long, cymosely many-flowered; 

 sepals glabrous, white-margined, outer ones 1-3 mm. long and suborbicular, inner 

 about 10 mm. long; corolla 6.5-7 cm. long, white with a purple throat, Umb 4-5 cm. 

 broad; capsules ovoid, 10-12 mm. long. 



Type locality: Gualan, Guatemala. 

 Distribution: Southern Mexico to Central America. 

 Specimens examined: Puebla; Near Metlaltoyuca, Goldman 67, 1898 

 (N). Guatemala: Gualan, Beam 318, 319, 1905 (type — G). 



144. Ipomoea oligantha Choisy in DC. Prodr. 9: 380. 1845. 



Convolvulus TpulchellusH.B. Is.. Nov. Gen. & Sp. 3: 101. 1819. 



Convolvulus pauciflorus Willd.; Roem. & Schult. Syst. 4: 302. 1819. 



Ipomoea pulchella G. Don, Gen. Syst. 4: 276. 1838. Not. /. pulchella Roth, 1821. 



Slender, twining, glabrous, perennial below; stems angled, puberulent; leaf- 

 blades triangular-ovate, caudate-acimainate, cuspidate, deeply cordate, 5-10 cm. 

 long, basal auricles laterally acute; petioles as long as blades, glandular-muricate 

 at base; peduncles pubescent at base, 3- to 5-flowered; pedicels 1-2 cm. long; sepals 

 subequal, ovate, acute or subobtuse, 5-6 mm. long; corolla about 2 cm. long, hmb 

 purple. 



Type locality: Crescit in Regno Pereuviano. 

 Distribution: Southern Mexico to Bolivia and Brazil. 

 Specimens examined: Mexico: Oaxaca, E. W. Nelson 1148, 1894 

 (N, G). 



