three feet high, erect, succulent, branched. The /eaves large, 
almost exactly ovate, acuminate, serrated, penniveined, glabrous ; 
petioles from one to four inches long, furnished with two oblong 
glands, at or near the apex. Peduncle axillary or subterminal, 
varying in length, generally longer than the leaves, bearing an 
umbel of four to six large white flowers, the lower portion richly 
marked with deep blood-coloured veins.’ The spur is large in 
proportion to the flower, longer than it, and very gradually 
tapering into its almost filiform extremity. 
