126 JOURNAL OF THE EOYAL HORTICULTURAL SOCIETY. 



I. DIPYRENA. 



A Himalayan holly, and seldom hurt by frost. There is a very fine 

 example of it at Eew, 20 feet high and 12 feet across. This was unin- 

 jured by the great frost in February 1895, but Mr. Bean writes that the 

 late Mr. Truelove, who for many years had charge of the Arboretum, told 

 him that it had been once killed back to the ground-level. In the Hima- 

 laya Mountains it grows to a height of 40 feet. The fruit is red. An 

 interesting holly, but not of great importance to the English gardener. 



I. INTEGRA. 



Othera japonica and Hex integrifolia are other names for this Chinese 

 and Japanese holly. It is of pyramidal growth, and reaches here a height 

 of 15 feet, with a diameter of 7 feet, but in its native lands it is twice 

 those dimensions. The large red berries are apparently more abundant 

 in the south than elsewhere. 



I. LATIFOLIA. 



Unfortunately this beautiful Japanese holly is too tender for general 

 planting here, but it deserves mention for its magnificent leaves, which 

 are frequently 8 inches long and 1 inches wide. It is the holly of Japan, 

 and it is to be regretted that our climate is too cold for it. When 

 planted it must have a sheltered fence, such as has been given to it at 

 Kew, where a specimen has been in the open for many years uninjured. 



I. opaca (American Holly). 



A handsome species, and when fully developed is 40 to 50 feet high, 

 with a trunk about 3 feet in diameter. This holly was introduced from 

 the United States into this country by the Duke of Argyll in 1744. 

 Mr. Bean says : " Probably there are big specimens in the country, but I 

 have not seen any myself approaching the heights given above, which are 

 these of native trees. Of the several representatives in Kew, the largest 

 is about 25 feet high and 16 feet through. It would be interesting to 

 know of any large specimens that may exist. It is easily distinguished 

 from other hollies of its size by the dull 1 opaque ' aspect of dark green 

 foliage. No varieties of it appear tj exist in cultivation, although Sargent 

 states that its berries are sometimes, though rarely, yellow." 



I. Pernyi. 



I wrote to Mr. ^Yilson for information about this holly, and the reply 

 was as follows : " This species was first discovered by Pere Perny about 

 1858, in the province of Kwei-chau, Central China. Generally speaking 

 this holly is a shrub 4 to 6 feet high, of stiff and erect growth, and 

 the leaves are much like those of I. cormita, only about one-third the size. 

 The berries are red and clustered in the axils of the leaves. The plant is 

 very spiny, and should make a good subject for hedges or for specimens 

 on the lawn. So far it has proved perfectly hardy in this country. This 

 species is common on shrub-clad mountains in Central and Western China 



