HOUSE , THE GENUS IPOMCEA 
225 
Corolla white or cream-colored or tinged with magenta 
below. 
Leaf-blades subtruncate, plicate, glabrous; ped¬ 
uncles shorter than the petioles. 
Leaf-blades cordate, not plicate. 
Sepals about 7 mm. long. 
Stems and sepals setaceous-hispid. 
Stems and sepals glabrous. 
Sepals 10-20 mm. long, or longer. 
Foliage white-tomentulose or silvery-pubes¬ 
cent beneath. 
Corolla densely pubescent, the white- 
canescent sepals 18-20 mm. long. 
Corolla glabrous; sepals 12-16 mm. long. 
Foliage glabrous or pubescent, not silvery. 
Sepals aristate; capsules ovoid, apiculate. 
Sepals blunt or obtuse. 
Calyx 10 mm. thick or more at flowering 
time; sepals oblong. 
Calyx 5-6 mm. thick; sepals lanceolate; 
leaves minutely pubescent to velvety- 
pubescent in var. 
Corolla blue, pinkish or purple. 
Sepals more than 10 mm. long (except no. 94). 
Leaf-blades silvery-pubescent beneath or velvety- 
pubescent. 
Corolla 7-10 cm. long; leaf-blades tomentose 
beneath. 
Leaf-blades entire or 3-lobed. 
Leaf-blades palmately 5-lobed. 
Corolla 6 cm. long or less. 
Leaf-blades silvery-pubescent beneath, ob¬ 
long, rounded or subcordate at the base. 
Sepals oval, 10-13 mm. long. 
Sepals 6-8 mm. long. 
Leaf-blades densely velvety-pubescent 
above and below, broadly ovate and 
equally 3-lobed. 
Leaf-blades glabrous or finely pubescent. 
Sepals tomentulose, 12-14 mm. long; leaf-blades 
triangular-ovate and lobed. 
Sepals glabrous or minutely pubescent. 
Leaf-blades finely pubescent, oblong-ovate to 
oblong-lanceolate, shallowly cordate. 
Leaf-blades glabrous above. 
Sepals equal; corolla rose-purple to white, 
8-10 cm. long. 
Sepals unequal; corolla blue, 5-6 cm. long. 
83. 7. plicata. 
84. 7. crinita. 
85. 7. populina. 
86. 7. prcecana. 
87. 7. macrorhiza. 
88. 7. scopulorum. 
89. 7. pandurata. 
90. 7. sabulosa. 
91. 7. jalapa. 
92. 7. leonensis. 
93. 7. lacleola. 
94. 7. hypargyrea. 
95. 7. passifloroides. 
96. 7. rupicola. 
97. 7. nicoyana. 
98. 7. calantha. 
99. 7. cyanantha. 
