A–G Ipomoea isthmica. A habit showing leaf and inflorescence B abaxial leaf surface C outer sepal D inner sepal E corolla opened up to show stamens F fruiting cyme G seed. H–N Ipomoea eremnobrocha. H habit showing leaves and inflorescence J abaxial leaf surface K outer sepal L inner sepal M capsule N seed. Drawn by Rosemary Wise A–E from Nee 7912; F, G from McPherson & Merello 8202; H–J from Polo 39; K, L from D’Arcy 9551; M, N from Correa et al. 11312.