172 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



evergreen oak, from the Himalaya, is due to the generosity of Mr. 

 J. E. Gamble, of East Liss, Hants, who is famous for having raised 

 Q. setnecarpifolia, another and more beautiful Himalayan oak which 

 is hardly ever seen in Europe. Q. dilatata is found in moister localities 

 and at a higher altitude than Q. incana, but at a lower level than 

 Q. semecarpifolia. It makes a very large tall tree in its own habitat, 

 is nearly evergreen, and has a dark-coloured bark, peeling off in 

 longitudinal scales. The leaves are smooth, leathery, and shining, 

 and vary from entire to serrate, the teeth being sharp and almost 

 spiny ; the blade is 2 to 4 in. long by 1 J to 2 in. wide, the downy 

 stalk is £ in. long ; the acorns are mostly solitary, nearly stalkless, 

 and half-enclosed in a cup J in. wide. I cannot say when it was first 

 introduced to Europe, but it was growing in the temperate house at Kew 

 as early as 1882. It is not hardy, and I am not sanguine of being able 

 to keep it long alive at Aldenham even in the most sheltered situation. 

 Q. incana above mentioned, which comes from the same region, was 

 killed stone dead with me in February 1919 by 33 0 of frost. 



Q. ellipsoidalis (E. J. Hill). — Here again I have but two specimens, 

 of which the biggest is 13 ft. high with a girth of 9 in. It is a true 

 species, and extremely rare in cultivation — indeed, so rare is it that, 

 I presume for that reason, it is entirely ignored both by Elwes and 

 Henry, and by Bean ; consequently I am left entirely to my own re- 

 sources, and find it difficult in my ignorance to say very much about 

 it. It is, I believe, related to Q. coccinea and Q. palusiris, and anyone 

 looking at it would be disposed to class it among the red oaks. Its 

 habitat is, I am given to understand, Minnesota and the neighbour- 

 hood of Chicago, &c, in the U.S.A. The plant seems quite healthy, 

 but does not grow with great rapidity. It is a well-looking tree enough, 

 but it is not outwardly sufficiently striking or distinct to make its 

 acquisition a matter of great moment to anyone but a botanic 

 enthusiast who aims at a complete representation of the genus. 



Q. x exacta (= palusiris x imbricarid) (see pp. 177, 178). 



Q. Fabri (Hance). — This deciduous oak was first discovered about 

 1869, in the province of Kiang-su, by C. Fabre-Tonnerre, a French 

 doctor of medicine, after whom it is named, and not, as might be 

 imagined, after the Rev. Ernst Faber, who collected at Mount Omi. 

 Acorns have been recently collected by Wilson in China. The only 

 place, so far as I know, where any account of it is to be found is 

 in " Plantae Wilsonianae," vol. hi. pp. 216-7. I owe the possession 

 of a specimen to the kindness of Professor Sargent. It is 7 ft. high, 

 comfortably established in its permanent situation, and gives every 

 prospect of making a fine tree. Small as it still is, I doubt whether 

 there are any bigger among the very few in cultivation in Europe. 

 It is stated usually to form scrub or coppice growth in its own 

 country, where large trees of it are rarely to be found. 



Q. Gambelii (Nuttall), White or Shin Oak. — This small deciduous 

 tree is found on the eastern slopes of the Rocky Mountains of Colorado 

 and in Northern New Mexico, generally at a high altitude, 6,000 to 



