M. Choisy excludes this plant from the genus Exogonium, 
because its corolla has a flat limb: but if the cylindrical 
tube of the corolla, and projecting stamens, are not the 
marks by which that genus is known from Ipomca, we are 
at a loss to know how the genera are to be kept apart. 
In cultivation this should be regarded as a stove herba- 
ceous climber, which grows freely in a mixture of sandy loam 
and leaf-mould in equal portions. 
After flowering it should be allowed to become gradually 
dry, and eventually may be placed (pot and soil) in a cellar 
or similar situation, where it is out of the reach of damp and 
frost, and where it may remain until the following April, when 
it should be again fresh potted and started in heat. Itflowers 
late in the autumn, and requires a stove heat at that time, 
otherwise the flowers will not expand. 
It is easily increased by cuttings of the young stems put 
in sand, and treated in the usual way. 
