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A TEXTBOOK OF THEORETICAL BOTANY 



Fig. 694. — Pinus syh'estris. Young 

 seedlings showing primary' 

 needle leaves. 



Spur leaves 



Primary leaves 



Cotyledonary node 



- Hypocotyl 



Fig. 695. — Pinus sylvestris. Older seedling showing 

 replacement of primary- leaves by leaves borne 

 on spurs. 



