1206 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



6. Ipomoea wolcottiana Rose, Gard. & For. 7: 367. 1894. 



Colima to Chiapas and Morelos; type from Manzanillo, Colima. 



Small or medium-sized tree; leaves ovate to rounded-ovate, obtuse to long- 

 acuminate, rounded to subcordate at base ; corolla 6 to 7 cm. long. " Pajaro 

 bobo" (Chiapas); " acote " (Colima). 



A decoction of the bark is used as a remedy for kidney diseases. 



7. Ipomoea calva House, Bot. Gaz. 43: 410. f. 1. 1907. 

 Type from La Junta, Guerrero. 



Leaves lanceolate, long-acuminate, obtuse at base ; corolla about 5 cm. long. 

 Probably only a form of /. icolcottiana. 



8. Ipomoea ciervensis Painter; House, Bot. Gaz. 43: 408. 1907. 

 Type from Hacienda del Ciervo, Queretaro. 



Stems erect, suffrutescent at base, stout, 30 to 60 cm. high, densely pubescent ; 

 leaves sessile or nearly so, elliptic or elliptic-ovate, 4 to 6.5 cm. long, obtuse 

 or acute, often shallowly trilobate; peduncles 1-flowered; corolla white, about 

 6 cm. long, white-pilose outside. 



9. Ipomoea maireti Choisy in DC. Prodr. 9: 374. 1845. 

 Tepic and Durango to Oaxaca and Veracruz. Guatemala. 



Stems suffrutescent below ; leaves rounded-cordate, 7 to 15 cm. long, acumi- 

 nate, entire, pilosulous or glabrate above ; peduncles 1 to 3-flowered, the bracts 

 large, ovate; sepals about 2 cm. long; corolla 7 to 10 cm. long, pink or blue. 



10. Ipomoea invicta House, Ann. N. Y. Acad. Sci. 18: 193. 1908. 

 Type from San Sebastian, Jalisco. 



Leaves broadly ovate-cordate, 8 to 14 cm. long, acuminate or cuspidate, 

 glabrate above, entire ; peduncles 2 or 3-flowered, nearly as long as the leaves ; 

 bracts large, colored ; corolla about 6 cm. long, blue. 



11. Ipomoea lambii Fernald, Bot. Gaz. 20: 535. 1895. 

 Type from Zopilote, Tepic. 



Stems retrorse-hirsute ; leaves broadly ovate-cordate, 7 to 15 cm. long, acumi- 

 nate, often 3-lobate ; peduncles elongate, 2 to 4-flowered ; corolla rose-purple. 



12. Ipomoea hirtiflora Mart. & Gal. Bull. Acad. Brux. 122: 264. 1845. 

 Type from Chinantla, Oaxaca. Guatemala. 



Leaves rounded-cordate 6 to 17 cm. long, often 3-lobate, sericeous beneath, 

 hirsute above ; peduncles about as long as the leaves, several-flowered ; corolla 

 purple, hirsute. 



13. Ipomoea igualensis Weatherby, Proc. Amer. Acad. 45: 427. 1910. 

 Type from Iguala Canyon, Guerrero, altitude 760 meters. 



Leaves broadly ovate-cordate, 8 to 12 cm. long, acuminate, hirsute, entire; 

 peduncles elongate. 3-flowered ; sepals 13 mm. long ; corolla pale pui'ple. 



14. Ipomoea ampullacea Fernald, Proc. Amer. Acad. 33: 89. 1897. 

 Type from Acapulco, Guerrero. 



Woody vine, the stems retrorse-hispidulous ; leaves rounded-cordate, acute, 

 entire or trilobate, appressed-hirsutulous ; corolla white, about 6 cm. long, ap- 

 pressed-setulose ; seeds finely pubescent. 



15. Ipomoea bombycina (Choi.sy) Benth. & Hook.; Hemsl. Biol. Centr. Amer. 

 Bot. 2: 384. 1882. 



Bomhycospermum mea-icanum Presl, Reliq. Haenk. 2: 137. pi. II. 1830. 



Batatas bombycina Choisy in DC. Prodr. 9: 340. 1845. 



Guerrero. 



