Calyx tubular, subcylindrical, tapering at the base, tlie mouth 
cut into five erect, nearly equal teeth. Corolla tubular; limh 
spreading, oblique, of five nearly equal lobes, pale yellow-white, 
with a purple tinge above near the base. Filaments four, (with 
an imperfect fifth), of which two are abortive, terminated each by a 
lax tuft of hairs : the longer ones are fertile and have also a short 
tuft of hair beneath the anthers. Ovary linear-terete, arising 
from a fleshy ring. Stigma obscurely two-lobed, depressed in 
the centre. 
Fig. 1. Stamens. 2. Pistil:— magnified. 
