HOUSE, THE GENUS IPOM(EA 



243 



138. /. vulsa. 



I. splendor-sylvcB. 

 I. phillomega. 



141. I. lindenii. 



Leaf-blades cordate or truncate at the base. 

 Leaf-blades deeply 3-lobed or sub 5-lobed. 

 Corolla white. 



Inner sepals 6 nun. long. Haytian. 136. /. huchii. 



Inner sepals 10-12 mm. long. Mexican. 137. /. rhomboidea. 



Corolla blue or purple; inner sepals 8-10 mm. 

 long. 

 Leaf-blades entire or merely toothed. 



Peduncles elongated, exceeding the leaves. 

 Blades toothed near the base; sepals 8-10 mm. 



long. 139. 



Blades not toothed; sepals 8-12 mm. long. 140. 

 Peduncles not exceeding the leaves. 

 Corolla yellow. 

 Corolla purple or white. 



Peduncles many-flowered; corolla purple, 



slender-funnelform. 142. /. ivilsoni. 



Peduncles 3-5-flowered. 



Corolla white, 4-5 cm. long. 143. /. anisomeres. 



Corolla blue, 2 cm. long; leaf-blades 



hastately lobed at base. 144. /. oligantha. 



Sepals cuspidate-acute. 



Stems and leaves densely pilose-pubescent; blades 3- 



lobed; sepals ciliate; coroUa rose-purple. 145. I. purpusi. 



Stems and leaves glabrous or nearly so. 



Leaf-blades deeply 3-5-lobed; sepals 8-14 mm. 



long; corolla purple. 146. I. collina. 



Leaf-blades entire, toothed or slightly 3-lobed. 

 CoroUa purple or yellowish-purple. 



Inner sepals broadly obovate; coroUa 3-3.5 



cm. long. 

 Inner sepals oblong-lanceolate. 



Sepals 10-14 mm. long; stems usually 

 prostrate and blades usually lobed, gla- 

 brous. 158. /. babatas. 

 Sepals 8-10 mm. long; the pilose or pubes- 

 cent stems usuaUy twining. 159. I.tiliacea. 

 Corolla white, fading purple in drying; 6-8 cm. 



long; sepals about 15 mm. long. 148. I.jicama. 



147. /. gracilis. 



132. Ipomoea angustifolia ^ Jacq. Coll. 2: 367. 1788. 



Convolvulus angu&tifolius Desr. in Lam. Encyc. 3: 547. 

 Convolvulus filicaulis Vahl, SJ^nb. Bot. 3: 24. 1794. 

 Convolvulus simplex Pers. Syn. 1: 178. 1805. 



1789. 



1 Ipomoea aprica nom. nov. 



Ipomoea angustifolia Choisy in DC. Prodr. 9: 367, 1845. — Meissn. in Mart. FI. Bras. 7: 249. 



pi. 89 U 2. 1869. Not /. angustifolia Jacq. 1788. 

 Brazil. 



