Page:An introduction to physiological and systematical botany (1st edition).djvu/110

 80 t. 16, plants widely different from each other in botanical characters, as well as in colour and every particular except smell. Their odour has one peculiarity, that it is not at all perceptible while the plants are growing, nor till they begin to dry. It proceeds from their whole herbage, and should seem to escape from the orifices of its containing cells, only when the surrounding vessels, by growing less turgid, withdraw their pressure from such orifices. When this scent of new hay is vehement, it becomes the flavour of bitter almonds. The taste of syrup of capillaire, given by an infusion of Orange flowers, is found in the herbage of ''Gaultheria procumbens, Andr. Repos. t. 116, and Spiræa Ulmaria, Engl. Bot. t.'' 960, two very different plants.

Some of the above examples show an evident analogy between the smell and colours of flowers, nor are they all that might be pointed out. A variety of the Chrysanthemum indicum with orange-coloured flowers has been lately procured from China by Lady Hume. These faintly agree in scent, as they do in colour, with the Wall-flower, Cheiranthus Cheiri; whereas the common purple