Stem round, twining, weak, pilose. Leaves cordate, 
with an open sinus, entire, pilose, the length of the petioles. 
Peduncles one-flowered, much shorter than the petioles, 
with two little bractez at base; pedicel thickened, downy, 
three times as long as the peduncle. Calyx ovate, downy, 
twice as short as the ample tube of the corolla, which is 
deep purple inside. Corolla yellowish orange-coloured, 
with a flat limb, and crenulate, apiculate lobes. Stigma 
small, capitate. 
J. L. 
