84 THE BOOK OF NATURE STUDY 



The Saltwort is a typical instance of this. The Salt Spurrey, 

 though it has fleshy leaves, develops scaly stipules ; the apparent 

 leaves of the Glasswort are branches, which are jointed, and the 

 true leaves are represented by the small teeth at these joints. In 

 fact, there is no organ of the plant which adapts itself to its 

 environment more readily than the leaf ; by becoming hairy, or 

 thorny, or very much reduced. 



BIBLIOGRAPHY (Chapters I. to IV.). Lord Avebury, A Contribution to our 

 Knowledge of Seedlings ; Buds and Stipules ; Flowering Plants ; Pfeffer, A Text-book 

 on Physiology of Plants, 3 vols. ; Darwin, The Power of Movement in Plants ; 

 Hall, The Soil ; Kerner and Oliver, Natural History of Plants ; Ganong, The 

 Teaching Botanist. 



