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A TEXTBOOK OF THEORETICAL BOTANY 



Wattle, is considered the best. Many species produce valuable timbers, 

 particularly A. me/anoxylon, the Australian Blackwood. The flowers 

 (Fig. 1522) are often very sweetly scented and are used in perfumery, for 

 example A. farnesiana which provides the "Cassia" flowers. 



Fig. 1522. — Acacia neriifolia. Globose 

 inflorescences. 



Another genus deserves mention. Entada scandens is a common tropical 

 American climber whose seeds (Fig. 1523), known as Nicker Beans, are 

 sometimes carried to Europe and the shores of Britain by the Gulf Stream, 

 whence the name Sea Bean is also given to it. 



Fig. 1523. — Entada scandens. Lomentate pod breaking into 

 one-seeded portions. Below, seeds. 



Among important timber trees we may mention Xylia dolabriforniis, the 

 Ironwood of India; Pithecolobimn saman, the Rain Tree, which incidentally 

 shows nyctinastic movements of the leaves; Lysilotna sabicu, and Prosopis 



