28 



JOURNAL OF THE EOYAL HORTICULTURAL SOCIETY. 



(perhaps six) species, all, with one exception, available for the 

 British Arboretum. 



Piiius densiflora attains its greatest development on the sides 

 of the hills in the interior, in places where no other tree can 

 grow. It is known as the Eed Pine in Japan, and often attains 

 a height of from 100 to 120 feet. Good specimens are now 

 growing in various parts of England, notably at Eastnor Castle, 

 where there is a tree 25 feet high, which was planted in 1865 ; 

 this gives the annual average growth at something less than 

 12 inches. 



Pinus TJiunhergii was figured and described by Siebold in his 

 Flora " under the name of P. Massoniana ; it was also intro- 

 duced by him under that name, whence it became current in 

 European gardens ; but as another Pine from China had been 

 previously figured and described as P. Massoniana, we must 

 adopt Parlatore's name, " Thunbergii," for the Japanese species. 

 This is the Black Pine of the natives, and attains its best develop- 

 ment near the coast, which suggests that it would be suitable for 

 our own seaside if not too much exposed. It is far less common 

 than P. densiflora, and so few seedlings have been raised in 

 this country that it is still comparatively rare. The best speci- 

 mens known to me are in the Royal Gardens at Kew. 



Pimis Jcoraiensis is believed to have been originally intro- 

 duced into Japan from the Corea, but so long ago that it may 

 be regarded as indigenous. Its height and size vary much with 

 the soil and situation ; in some places it is 50 feet high, in others 

 not half so much. It is comparable with the Cembra Pine of 

 Europe, but more spreading in its habit. In this country it 

 grows freely and soon forms a handsome specimen. 



Pinus i:)arviflora. — Under this name we have two distinct 

 forms, that introduced by J. Gould Veitch, and called the 

 cultivated j3arviflora, and that introduced by Maries, which lie 

 calls the wild imrviflora. Mayr has observed both forms in their 

 native home, and expresses his opinion that the cultivated 

 jparviflora is a transitional form between Ccmhra and Strobus, 

 and that the wild form is a true Strobus, and specifically distinct 

 from i:)arvi flora (giving his reasons for that conclusion). The 

 wild form, as we call it, is the most robust of the two ; it belongs 

 to the cooler region of Nippon, and spreads farther north than 

 ^arviflora. The latter, as we see ;t, is ono of the most distinct, 



