EXPLANATION OF PLATE XI. 



Fig. a, section of a branch bearing a mature closed cone (October); T>, mature open cone after shedding seed; 

 c, c, c, tips of cone scales showing variation in form of apophysis and stout prickle ; </, cone scale, outer or dorsal side ; 

 , inner or ventral side of cone scale with seed in place; /, seed with wing detached; g, seed and wing intact. 

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