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bears a single seed embedded in the substance of the 

 scale and terminates distally in a narrow upturned 

 process. Some species of Araucaria, differing con- 

 siderably in the form of the leaves and in the shape 

 and structure of the seed-scales from the Chilian 

 species, are conveniently placed in a distinct sub- 



Fig. 17. Araucaria excelsa. The upper part of a small tree in the 

 Cambridge Botanic Garden. (Much reduced.) 



division of the genus Araucaria. Of this type the 

 Norfolk Island Pine, Araucaria cxcelsa, is the best- 

 known example (Fig. 17). It was introduced to Kew 

 by Sir Joseph Banks in 1/93, soon after its discovery 

 by Captain Cook, who describes the stems of the 



