HOUSE, THE GENUS IPO MCE A 
243 
Leaf-blades cordate or truncate at the base. 
Leaf-blades deeply 3-lobed or sub 5-lobed. 
Corolla white. 
Inner sepals 6 mm. long. Haytian. 136. 
Inner sepals 10-12 mm. long. Mexican. 137. 
Corolla blue or purple; inner sepals 8-10 mm. 
long. 138. 
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. 141. 
Corolla purple or white. 
Peduncles many-flowered; corolla purple, 
slender-funnelform. 142. 
Peduncles 3-5-flowered. 
Corolla white, 4-5 cm. long. 143. 
Corolla blue, 2 cm. long; leaf-blades 
hastately lobed at base. 144. 
Sepals cuspidate-acute. 
Stems and leaves densely pilose-pubescent; blades 3- 
lobed; sepals ciliate; corolla rose-purple. 145. 
Stems and leaves glabrous or nearly so. 
Leaf-blades deeply 3-5-lobed; sepals 8-14 mm. 
long; corolla purple. 146. 
Leaf-blades entire, toothed or slightly 3-lobed. 
Corolla purple or yellowish-purple. 
Inner sepals broadly obovate; corolla 3-3.5 
cm. long. 147. 
Inner sepals oblong-lanceolate. 
Sepals 10-14 mm. long; stems usually 
prostrate and blades usually lobed, gla¬ 
brous. 158. 
Sepals 8-10 mm. long; the pilose or pubes¬ 
cent stems usually twining. 159. 
Corolla white, fading purple in drying; 6-8 cm. 
long; sepals about 15 mm. long. 148. 
I. buchii. 
I. rhomboidea. 
I. vulsa. 
I. splendor-sylvce. 
I. phillomega. 
I. lindenii. 
I. wilsoni. 
I. anisomeres. 
I. oligantha. 
I. purpusi. 
I. collina. 
I. gracilis. 
I. babatas. 
I. tiliacea. 
I. jicama. 
132. Ipomoea angustifolia 1 Jacq. Coll. 2: 367. 1788. 
Convolvulus angustifolius Desr. in Lam. Encyc. 3: 547. 1789. 
Convolvulus filicaulis Vahl, Symb. Bot. 3: 24. 1794. 
Convolvulus simplex Pers. Syn. 1: 178. 1805. 
i Ipomoea aprica nom. nov. 
Ipomoea angustifolia Choisy in DC. Prodr. 9: 367, 1845.— Meissn. in Mart. Fi. Bras. 7: 249. 
pi. 89 f. 2. 1869. Not I. angustifolia Jacq. 1788. 
Brazil. 
