104 House: North American Convolvulaceae 



12. Exogonium repandum (Jacq.) Choisy, Conv. Rar. 128. 



1837. — In DC. Prodr. 9: 347. 1845 



Ipomoea repanda Jacq. PI. Carib. 13. 1760. —Select. Stirp. 



Amer. 28. pL 20. 1763. — L. Sp. PI. ed. 2, 1668. 1763. 

 Convolvulus repandus Desr. in Lam. Encyc. 3: 555. 1789. 



Type locality: St. Francis, Martinique. 



Distribution : In thickets, Porto Rico and the Lesser Antilles. 



Specimens examined: Porto Rico, S interns 53 jo, 1886; 



Martinique, Duss i8 9 o, 1880; GuadeloupeT^m^gzS 1892; 

 Grenada, Broadway, 1905 ; Montserrat, Shafer~4oT~[^o-j. 



13. Exogonium filiforme (Jacq.) Choisy, Conv. Rar. 127. 



1 ^37- — In DC. Prodr. 9: 347. 1845 



Ipomoea filiformis Jacq. PI. Carib. 13. 1760. —Select. Stirp. 

 Amer. 27. //. /p. 1763. 



Convolvulus filiformis Desr. in Lam. Encyc. 3: 555. 1789. 



Type locality: Martinique. 



Distribution : In thickets, Porto Rico and the Lesser Antilles. 



Specimens examined: Porto Rico, Heller, 1902; Martinique, 

 Duss 425, 1879; Guadeloupe, Madiana 23, 1872, , 



1893; St. Thomas, Eggers 4 8, 1887; St. Croix, " Ricksecker 

 jp, 1895. 



_> 14. Exogonium arenarium Choisy, Conv. Rar. 129. pi. i> 



1837.— In DC. Prodr. 9: 347. 1845 

 Ipomoea arenaria Steud. Norn. ed. 2. 815. 1841. Not /. 



arenaria Roem. & Schult. 18 19. 

 Ipomoea Steudeli Millsp. Field. Col. Mus. Publ. Bot. 2 : 86. 1901. 

 Type locality : Caribbean Islands. 



Distribution : Littoral, Porto Rico and the Lesser Antilles. 

 Specimens examined: Porto Rico: Underwood & Griggs 



xtenis 3457, 1888, Heller 6170. 1002 ; Culebra, 



& Wheeler 



) 



5- Exogonium Egg 



A perennial slender, trailing vine, exactly simulating the pre- 

 ceding: leaf-blades 3-12 mm. long, nearly as broad, obcordate or 

 notched at the apex, the base truncate or hastately lobed : ped- 

 uncles 0-8 mm. long, 1 -flowered: sepals equal, orbicular-ovate, 



