ROSACEA?-:. 



[CHAF. 



reduced to a petiole, which, in order to compensate for the 

 deficiency, is much flattened and leaf-Hke, serving the 

 purpose, as to function, of an ordinary leaf-blade. Such 

 flattened petioles are called phyllodes. Their true nature 

 is plainly ascertained by finding the compound blade some- 

 times developed upon the flattened phyllode, as is the case 

 often in seedling Acacias. 



Some of these phyllodineous Acacias have been intro- 

 duced into Southern India, where they are said to hold their 

 own, and api^ear likely to become naturalized. 



35. Natural Order, Rosau'if. — The Rose Family. 



Trees, shrubs, or herbs, with alternate, entire or divided 

 leaves. Flowers regular. Ovary free, or adherent to the 

 calyx-tube (when the pistil becomes apparently syncarpous). 



Type — Any species of Bramble {Ritbus). 



Scrambling, prickly shrubs, with alternate, digitate or tri- 

 foliolate leaves, and terminal panicles of regular white or 

 rose-coloured flowers. 



This Family, of great importance in orchard and garden 

 culture of the temperate zone, is represented by several 



