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DR. M. T. MASTERS ON THE MORPHOLOGY, 



sides as in the true leader-shoots. This change of direction is 

 the original of some of the "fastigiate" varieties, as of the 

 common Yew, where the branches, instead of spreading more or 











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Pig. 4 — Cephalot(ixu$ Fortunei, leader-shoot with scattered many-ranked leaves. 



less horizontally, assume an erect position, and the leaves are then 

 given oft' on all sides, not being twisted at the base (see figs. 4, 5) 



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variation, as is seen in Taxus, Cephalotaxus, and other species. 



A remarkable correlation may frequently be observed in such 

 cases between the size and the direction of the leaves. Thus in 

 the variety brevifolia of PjeudoUuga Douglasii the stature of the 

 at is relatively dwarf, and the leaves not only spread on all 

















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in the normal 



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cases 





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