GENUS PINUS. 87 



has a light and airy appearance, caused by the branches being 

 rather scantily furnished with leaves, more especially on the 

 inner and lower portions, but this does not give a meagre or 

 unhealthy appearance, but rather that of a refined and un- 

 usual aspect. The rate of growth in this country is by no 

 means slow, the tree from which this description was taken 

 having reached a height of 45 feet in thirty years. For plant- 

 ing in sandy soil by the sea coast it ranks as a valuable species, 

 and has proved useful in this way both in Wales and Ireland. 



P. HIartwegriii Lindley. {Syno7iyms: — P. Ehren- 

 b&rgii, Endlicher ; P. Montezumce, Gordon.) Mountains of 

 Mexico. — Generally this is not hardy throughout Britain, 

 though here and there, particularly in Ireland, healthy speci- 

 mens are to be met with. I have seen it doing well planted 

 in an open field surrounded by woodlands and in free loamy 

 soil. The appearance of healthy specimens is very orna- 

 mental, owing to the beautiful glaucous green, almost silvery 

 leaves, which are arranged in tufts of five. 



P. inops, Solander. Scrub Pine. {Syfwnyms : — P. 

 virginiana^ Miller ; P. variabilis, Lambert.) North-Eastern 

 United States. — In this country, at least, the present species 

 cannot be ranked as an ornamental tree, the stout and twisted 

 branches, and generally unfurnished and straggling appear- 

 ance being the reverse of beautiful. The leaves are greyish- 

 green, produced plentifully, and two in a sheath. A rather 

 peculiar appearance is given to the tree by the prickly and 

 thickly produced cones, which are often found in whorls far 

 back on the branches, where they persist for many years. 

 One of the largest specimens I have seen is growing on 

 broken slaty rock with decayed vegetable matter, near the 

 Penrhyn Slate Quarries in Wales. 



P. insigrniS, Douglas. Remarkable Pine. {Syno- 

 nyms : — P. radiata, Don ; P. tuberciilata, Don.) California. 

 1833. — A handsome, fast-growing conifer, but unfortunately 

 one that in point of hardihood cannot everywhere be depended 

 upon. The ornamental character of this species is universally 

 admitted ; indeed, it might well be described as the most 



