282 PARKS AND PLEASURE-GROUNDS. 



positions^ and those of lower growth or shrubby cha- 

 racter filling lip the secondary places. The groups 

 should be made up of the generic and subgeneric divi- 

 sions^ as given in our enumeration of the species. In 

 the genera Juniperus and Pimis, some of the subgeneric 

 sections may require to be further broken down^ other- 

 wise many of the species must be so placed that they 

 will have enough of room only for their partial develop- 

 ment; or they must be dotted out at such distances 

 as nearly to ungroup the whole. Where there is a 

 liberal allowance of ground to be occupied by the Pine- 

 tum, we should be disposed to recommend that the 

 groups should be constructed mtli principal trees^ ar- 

 ranged on strict botanical principles, but planted very 

 sparsely ; and that the intervals between these main trees 

 should be filled up with interesting duplicates of the 

 same or allied species, to act as nurses, or to be tem- 

 porary occupants, till the whole space is required by the 

 others. This plan, of course, implies a continued and 

 resolute thinning out, as the Pinetum advances to ma- 

 turity. We do not think it needful to say anything of 

 the position of the groups relatively to each other, as 

 our remarks on the decorative treatment of the Arbore- 

 tum will, mutatis mutandis, apply to the Pinetum. 



In our remarks appended to the lists of species, we 

 have noticed the colom-s of the foliage and the forms of 

 many of the trees and shrubs there enumerated, to aid 

 the planter in making his selection and fixing his sub- 

 ordinate arrangements. The effect of the various colours 

 is an element which must be taken into careful consi- 

 deration. Hitherto the species employed have been 

 principally those with dark-coloured foliage — a property 

 extremely valuable in producing depths of shade, and in 



