206 SYLVA FLORIFERA. 



limb of the corolla ; after the azalea in the 

 blueness of the leaves, the tapering of these 

 towards each end, in the cylindrical elongation 

 and whiteness of the tube of the corolla, &c. 



The rhododendrons change their foliage 

 after the blossom is over, and the flower buds 

 are formed of a considerable size in the 

 autumn for the following summer. 



We now reckon eleven distinct species of 

 these plants, all of which require to be plant- 

 ed in bog earth, and not in situations too 

 much exposed to the mid day or afternoon sun. 

 We have already noticed their proper 

 place in the shrubbery in the introduction to 

 this work. We shall add, that when they 

 can be contrasted by the yellow Spanish 

 broom, or other plants of a similar colour, it 

 gives their blossoms an additional lustre. 



Clumps of the flame-coloured azalea should 

 shine near those of the purple rhododendron, 

 for as they both flower at the same season 

 the contrast is as rich as a purple robe 

 wrought with gold. It requires the nicest 

 judgment to intermix even those plants which 

 contrast or harmonise the best. 



" Not chaos like together crush'd and bruis'd, 

 But, as the world, harmoniously confus'd, 

 Where order in variety we see, 

 And where, tho' all things differ, all agree." 



Pope. 



