one-nerved keel down the back. Filaments pale mauve- 
purple, uniform, linear, much longer than the perianth- 
segments; anthers small, oblong. Ovary greenish, orbicular, 
deeply lobed, with a pair of collateral ovules in each cell.— 
J. G. Baker. 
Fig. 1, A flower complete; 2 and 3, stamens; 4, pistil:—alZ more or less 
enlarged, 
