33 
BRITISH OAKS. 
By .C. E. Moss, D.Sc. 
(PLATE 502.) 
(Concluded from p. 8.) 
(). fobur would appear to be the only Oak stocked by British 
nurserymen; and Mr. A. C. Forbes (Gard. Chron. 1900, ii. 295) 
states that it is difficult to obtain seeds from them of Q. sessili- 
flora. This is curious; for, as has been shown, this Oak is very 
abundant in certain localities, and in some seasons produce es ripe 
acorns in abundance. The Oak found in British plantations is, 
in my experience, invariably Q. Robur; and this is the case even 
in localities which, on account of the shallow soil, are most 
of the Wye, for example, there are not half a dozen Oaks, and even 
these appear to be planted specimens. This is all the more 
remarkable, as many at Ae sae e been and are still being made 
to introduce the tree into th A plantation’ of this Sistienler locality. 
n the Carboniferous Dinkestone of the Craven District of York- 
shire, also, Oaks are very rare, whilst the Ash is abundant in the 
ere woods an 
Robur as a native tree in Britain ascends to about 880 ft. 
(268 n m.) in southern England, e.g.,in west Kent. In east Cheshire, 
the natural Q. Robur region ceases at about 600 ft. (183 m.) : 
west Yorkshire, it does not attain even to this comparatively 
low altitude. In plantations on the Pennines, the tree occurs so 
high as 1100 ft. (335 m.); but it is not a there, where, . 
however, Q. sessiliflora is indigenous. titudes above 1000 ft. 
(302 m.) on the ines, the only non-indigenous 
deciduous trees are Acer P. and Fagus sylvatica, 
both of which are cultivated up to about 1600 ft. (488 m.). 
It has been stated that Q. sort la is characteristic of dry 
and @). Robur of wet soils ; but ions do not confirm. 
this. 
