House : North American Convolvulaceae 4!»9 



Ymala, Dr. R Palmer 1709, Sept. 25-Oct. 8, 1891. 



Michoacan 



1898. 



Differs from O. rhodocalyx by its less cordate, thinner and more 

 triangular leaf-blades, winged peduncles and scarlet corollas ; from 

 0. alatipes f by its more slender habit, fewer- flowered infloresence, 

 and smaller scarlet corollas. 



7. Operculina alatipes (Hook.) 



Ipomoea pterodcs Seem. Bot. Voy. Herald 171. 1854. Not /. 



pterodcs Choisy, 1845 ; nor I- pterodcs Griseb. 1861. 

 Ipomoea alatipes Hook. Bot. Mag. //. 5330. 1862. 



The stout peduncles curved, broadly 2-winged below the 

 middle, 2— 7-flowered and strongly flexuous between the pedicels, 

 the pedicels secund and upright, thickened: calyx 2.5 cm. long: 

 corolla subsalverform, 6—7 cm. long, salmon-colored, the limb 

 4.5—5 cm - broad, with five obscure, rounded lobes. 



Distribution: Southern Mexico to Columbia. 



8. Operculina macrocarpa (L.) Urban, Symb. Ant. 3 : 343 



1902 



Convolvulus macrocarpus L. Syst. ed. 10. 923. 1759- — Sp. PI. 



ed. 2. 222. 1762. 

 Convolvidus operculatus Gomes, Mem. Acad. Lisb. 3 : App. 27. 



1812. 

 Ipomoea operadata Mart, in Spix & Mart. Reise Bras. 2 : 547. 



1828. — Choisy, in DC. Prodr. 9: 361. 1845. 

 Operculina Convolvidus S. Manso, Enum. Subst. Bras. 12. 1836. 



Meissn. in Mart. Fl. Bras. 7: 211. 1869. 



Type locality : America. 



Distribution : Antilles and tropical South America. 



Illustrations : Plum. Am. pi pi. /. /. Gomes, /. e. pi. 3. 

 Mart. Fl. Bras. 7 : pL 74. 



9. Operculina titberosa (L.) Meissn. in Mart. 



Fl. Bras. 7: 2 12. 1869. 



Ipomoea tuberosa L. Sp. PI. 160. 1753; ed - 2 - 22 7- l 7 62 



f 



excl. syn. Plukn. — Choisy, in DC. Prodr. 9: 362. 1845, 

 excl. syn. 



