- ;n - PINUS. 



62. Fruit. Draw a ripe pine cone. 



63. Fruit. Isolate a scale from a ripe cone and draw the upper surface to show : 

 placenta ; seeds with wings. Then draw the under surface to show carpellary scale and 

 placenta. 



64. Seed. Draw a seed after it has become free from the cone. Then make a longi- 

 tudinal section and draw : testa ; endosperm ; embryo, with cotyledons and radicle. 



