-1'inus syh-estris (3 nat. size). 1, Shoot of unlimited growth bearing short shoots : at the 

 top the shoot of the current year. At the base of the latter are numerous male flowers each in 

 the place of a short shoot, and nearer the tip brown scale leaves, in the axil of each of which 

 is a short shoot. 2, Similar branch bearing a young female flower at the summit of the shoot 

 of the current year, in place of a branch of unlimited growth. Two dependent green cones 

 are borne on the shoot of the preceding year. 3, Cone of the year before last, opened to allow 

 of th> escape of the seeds. 4, A microsporophyll. >, Macrosporophyll from the adaxial side 

 showing the ovuliferous scale with the two ovules at the base. 6, Macrosporophyll from the 

 abaxial side showing the small bract-scale below the large ovuliferous scale. 7, Ripe seed with 

 its wing derived from the superficial layers of the ovuliferous scale, (x 4-7.) OFFICIAL. 



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