148 CONIFERS 



branches bearing more sweeping and pendent spray, often 

 upturned at the tips and the cones pendulous. 



Many other species of Picea are met with in cultivation. 



In the Larch and Cedars, especially Cedrus Deodara, 

 there is a tendency to whorled branches while the tree is 

 young, but irregularity supervenes at an early age by the 

 casting or arrest of some of the branches, and they are 

 normally not in pronounced pseudo-whorls round the stem. 

 The same is also true, to a less extent, in the Douglas Fir. 



The Larches and Cedars are readily known from all 

 other trees by their narrow leaves in knob-like tufts of 

 25 50 or even more, distributed along the twigs : those 

 of the Cedars evergreen, those of the Larch deciduous. 



It should be noted also that Prunus Padus, P. Avium 

 and even the Ash (Fraxinus) display a tendency to have 

 their branches in false whorls sometimes, but the pheno- 

 menon is not sufficiently pronounced for diagnostic purposes 



here. 



tt Branches not in definite pseudo-whorls, but 

 radiating irregularly round the stem. 



[For(OO) Conifers with narrow linear, acicular, or 



seep. 155.] scale-like leaves. 



f~l Evergreen shoots and slender branches 

 crowded with small, green, imbricated, 

 scale-like leaves, which are opposite and 

 decussate. Cones small and round or 

 oblong. 



Shoots flattened, cones long -ovoid, of 

 few opposite scales. 



Thuja gigantea, Nutt. Arbor Vitae (Fig. 63). A North 

 American form attaining 150 200 feet, and even in 

 England tall and tapering. 



Several other species of Thuja are cultivated in gardens. 



Shoots quadrangular; cones spheroidal 

 ivith angular scales. 



