ON THE YORKSHIRE COAST 95 



and Wych Elm do not succeed so well. When 

 planting oaks in plantations, etc., they should be 

 mixed with other kinds of trees such as Scots, 

 Austrian, Corsican Pine, Larch, etc. etc., which will 

 act as nurses until they grow into size. Deciduous ; 

 Britain. There are several varieties. 



Quercus pedunciilata fastigiata. Pyramidal in 

 habit, makes a handsome tree. Hardy by the sea. 



Quercus pyramidalis. See Quercus pedunculata 

 fastigiata. 



Quercus Robur, Black Oak, Common Oak. 

 Q. pedunculata and Q. sessiliflora as sub-species 

 are the British representatives of this genus. 



Quercus sessiliflora, Sessile Oak. Also hardy 

 by the sea. Deciduous ; Britain. 



Quickthorn. See Crataegus. 



Red Fir. See Pseudotsuga Douglasii. 



Retinospora. See Chamaecyparis. 



Rhododendrons grow freely in places at some 

 little distance from the sea. R. ponticum is useful 

 as undergrowth in plantations, etc., where it forms 

 good covert. Seedlings of some of the better 

 kinds, and R. catawbiense, may also be used for 

 the same purpose. The hybrid Rhododendrons 

 are a very beautiful section and are largely planted 

 in gardens and pleasure grounds. Rhododendrons 

 will succeed in a good loamy soil. Peat and 

 leaf-mould is a favourite compost. Chalk, lime- 

 stone, or a limestone soil is fatal to them. 



