E. R. Saunders 



159 



Text-figures 1 — 3 (diagrammatic). 1. Very young leaf seen in profile showing the terminal 



hydathode and trichome characteristic of the sub-glabrous form containing CRH. 



2. Typical young siliqua from the same form with the trichomes distributed irregularly 



along its length and over the stigmatic knobs. 3. Base of a large mature leaf of the 



OHhf TT 

 Bub-glabrous heterozygote ^i,,\ with a few small trichomes scattered along the 



margin. 



11-2 



