104 House: North American Convolvulaceae 



12. ExoGONiuM REPANDUM (Jacq.) Clioisy, Conv. Rar. 128, 



1837. — In DC. Prodr. 9: 347. 1845 

 Ipoiiwea repanda Jacq. PL Carib. 13. 1760. — Select. Stirp. 



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

 Convolvulus rcpaiidus 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, Sintcnis 5330, 1886; 

 Martinique, Duss i8go, 1880; Guadeloupe, Duss 2^j8, 1892; 

 Grenada, Broadway, 1905 ; Montserrat, Shafer ^01, 1907. 



13. ExoGONiUM FiLiFORME (Jacq.) Choisy, Conv. Rar. 127. 



1837. — In DC. Prodr. 9 : 347. 1845 

 Ipomoea filifonnis Jacq. Pi. Carib. 13. 1760. — Select. Stirp. 



Amer. 2'j.pl. ip. 1763. 

 Convolviibis filifomnis 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 ^23, 1879; Guadeloupe, Madiana 23, 1872, Duss 3083, 

 1893; St. Thomas, Eggers ^8, 1887; St. Croix, Ricksecker 



14. ExoGONiUM ARENARiuM Choisy, Conv. Rar. 129. //. /. 



1837. — In DC. Prodr. 9: 347. 1845 

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



arenaria Roem. & Schult. 18 19. 

 Ipomoea Steudeli M'xWsp. Field. Col. Mus. Publ. Bot. 2 : 86. 1901. 



Type locality : Caribbean Islands. 



Distribution : Littoral, Porto Rico and the Lesser Antilles. 



Specimens examined : Porto Rico, Underivood & Griggs 

 344, 34y, 1901, Sintenis 3432, 1888, Heller 61 jo, 1902 ; Culebra, 

 Britton & Wheeler 30, 1906, (Plate 2, figure d.) 



15. Exogonium Eggersii sp. nov. 



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 6-8 mm. long, i -flowered: sepals equal, orbicular-ovate, 



