HARDY CONIFEROUS TREES 139 



inches long, of a silvery green tint, and hang in 

 plumes from the branch-tips. When \dewed from 

 a distance, this pine has a striking and very unusual 

 appearance, from the great length and disposition 

 of the leaves. In favourable places I have noted 

 the upward rate of growth to be 10 feet in as 

 many years. 



P. MiTis, Michaiix. (Synon^TQS : P. variabilis, 

 Ptirsh ; P. echinata, Miller ; P. Taeda variabilis, 

 Alton. ) Eastern United States to Florida and 

 Texas. 1739. — This species has no particular 

 value here, whether for ornament or the quality' of 

 timber produced ; though in the latter respect it 

 is one of the most valuable of the North American 

 pines. After the first ten years this tree seems 

 to start and make headway in these islands, but 

 even then it cannot be called either beautiful or 

 distinct. The leaves are dark and dull of colour, 

 3 inches long, and arranged two in a sheath. It 

 produces the '' yellow pine " of commerce. 



P. MONOPHYLLA, Tovrey. (Synonym : P. Fre- 

 montiana, Endlicher.) Sierra Nevada, Utah. 1848. 

 — For planting in grounds of small extent this 

 tree has several valuable qualifications. It is of 

 low growth, never more than 20 feet high, strictly 

 pyramidal when young, but becoming loose and 

 rather straggling with age, the foliage being thickly 

 produced and of an unusual and decidedl}' pleasing 

 glaucous tint. Even in the reddish, scaly bark it 

 is something out of the common with pines in 

 general. The leaves are solitary- and rounded, 

 very rarely in pairs, and w^hen so, semi-cylindrical 

 and adherent for the greater part of the length, 

 nearly 2 inches long, and of an oily or shining 



