[7] 83 FLOWERING PLANTS 



Leaves (continued). 



F. Place the lamina of a fresh leaf (e.g. Limnocharis) in water, then suck the end of the leaf-stalk and note 

 the dark patches that appear on the leaf-blade. These are due to water having been sucked through the stomata 

 into the intercellular spaces. 



G. Examine the shoots of Gorse (Ulex). Make a diagrammatic sketch to shew the arrangement of " leaf- 

 spines " and " stem-spines." 







