270 PARKS AND PLEASURE-GROUNDS. 



124, 128 are large, spreading, and irregular ; of 123, horizontal, spread- 

 ing, and twisted ; of 125, loose and robust ; of 130, few and horizontal, 

 in regular whorls ; of 129 and 132, densely set. The coloiu- of 125 is a 

 silvery green ; of 124 glaucous ; of 115, 116, 123, Hglit green ; of 121 

 and 129, vivid green ; and of 126, 128, 130, dark gi-een. The length 

 of the leaves varies generally from 2 to 8 inches, but in 124, 125, 128, 

 130, it ranges from 10 to 12 inches. P. insicfnis, Sabiniana, macro- 

 carpa, and ponderosa are of very rapid growth. P. Tceda^ radiata, 

 and tuherculata stand the sea-breeze well in tlieu' native countries, 

 and are expected to prove acquisitions to parks near the sea-coast in the 

 United Kingdom. P. Sabiniana requires a rich loam ; Gerardiana 

 thrives amongst rocks and crags ; Tceda, in very barren ground, but 

 attains its greatest perfection in swampy soils. P. insignis and rigida 

 afford effective shelter. The timber of P. rigida is valuable, and that of 

 P. ponderosa is expected to prove so. The hght silvery colour of P. 

 Sabiniana and macrocarpa will be as marked in ornamental scenery 

 during the whole year, as the summer garb of the Himtingdon willow ; 

 and the hght greens of P. Teocote, jpaiula, and Gerardiana^ as that of 

 the summer greens of the deciduous trees. 



PiNUS. — Grroup 10. Pinaster. 

 (Leaves in pairs, rarely in threes.) 



