quadrate-rotuudate, somewhat truncate and obscurely apiculate, 

 closely convolute ; bract eolex membranous, the two lateral ones 

 with winged keels. Flowers in pairs (or with rudiments of 

 more) in the axil of each bract, yellow, the perianth but slightly 

 exserted. 



Fig. 1. Flower removed from its bract. 2. Stamen and stigma: — magnified. 



