On the Colour and Smell of Plants. 15 



Green flowering genera, containing 70 100 per cent, white in their flowers. 



Of 20 species there are 4 odoriferous, and hence 20 per cent. 



6. Yellow Flowering Genera, 

 a Genera containing 12 per cent, white in their flowers. 



Of 515 species there are 24 odoriferous, and hence 4.66 per cent. 



6 Yellow flowering Genera, containing 12 70 per cent, white in their 

 flowers. 



Of 497 species 76.5 are odoriferous, and hence 15.39 per cent. 



