250 
ANNALS NEW YORK ACADEMY OF SCIENCES 
Sepals glabrous; perennials. 
Corolla 3 cm. long or less. 
Corolla 2-3 cm. long; leaf-blades petioled, 
3-5-lobed, rarely subentire. 156. 
Corolla 15 mm. long; leaf-blades subsessile, 
entire. 157. 
Corolla 4 cm. long or more. 
Inner sepals broadly obovate, rounded, 
minutely cuspidate; outer ones lanceo¬ 
late, cuspidate-acuminate. 147. 
Inner sepals oblong-lanceolate, cuspidate- 
acuminate. 
Sepals 10-14 mm. long; stems usually 
glabrous and prostrate. 158. 
Sepals 8-10 mm. long; stems usually 
pubescent and twining. 159. 
Sepals obtuse, subacute or rarely awned. B. 
B. Sepals aristately awned; foliage silvery-pubescent 
and sericeous. 160. 
Sepals not awned. 
Foliage densely pubescent. 
Pubescence shaggy; stems retrorsely hispid, 
blades hirsute, entire; sepals glabrous. 161. 
Pubescence velvety or sericeous; blades en¬ 
tire or unequally 3-lobed; sepals serice¬ 
ous. 162. 
Foliage glabrous or at least not densely hir¬ 
sute sericeous. C. 
C. Stems stout and woody, often 2 cm. thick. West 
Indian. 163. 
Stems slender, less than 1 cm. thick. 
Corolla salverform; blades subtriangular or ovate- 
lanceolate, more or less pilose. 164. 
Corolla funnelform or campanulate-funnelform. 
Corolla white or yellowish-white. 
Leaf-blades oblong, rounded at the base. 166. 
Leaf-blades ovate, cordate or subcordate. 
Corolla 3.5 cm. long, yellowish-white with 
a magenta base, blades entire. 165. 
Corolla 6-8 cm. long, white; blades en¬ 
tire or 3-lobed. 167. 
Corolla or corolla-limb blue or purple. D. 
D. Corolla 2-3 cm. long; sepals 4-5 mm. long. 
Foliage glabrous; sepals acute. 168. 
Foliage more or less pubescent at least when 
young. 
Peduncles longer than the leaves. 
Inflorescence 5 cm. long or less; corolla 
minutely pubescent without, white 
below. 169. 
I. trifida. 
I. peninsularis. 
I. gracilis. 
I. batatas. 
I. tiliacea. 
I. leucotricha. 
I. signata. 
I. tuxtlensis. 
I. demerariana. 
I. chenopodifolia. 
I. robinsonii. 
I. curtissii. 
I. dimorphophylla. 
I. cardiophylla. 
I. perlonga. 
