[95] 



KEY TO PLATES. 



Scotch pine. 1. Male flowers. 2. Scale seen from above. 3. Same, seen from 

 below. Fruit of the Scotch pine. 1. Intact cone. 2. Scale seen from above. 3, Same, seen 

 from below. 4. Seed. 5. Same, transverse section. 6. Germination. 7. Cone of the Scotch 

 pine. 8. Scale seen from above. 9. Same, seen from below. 10. Seed. 1 1. Same, transverse 

 section, 12. Germination, 



Maritime pine. 1. Branch of male flowers. 2. Detached flower. 3. Section showing 

 anthers. Fruit of the maritime pine. 1. Cone, natural size. 2. Intact scale, exterior view, 3. 

 Same, inside view. 4. Intact seed. 5, Same with wing removed. 6. Same, transverse 

 section. 



Stone pine. Same. 1, Reduced view. 2, Fruit, natural size. 3. Detached scale, 

 exterior view. 4. Same, inside view, 5. Intact seed. 6. Transverse section, 



Weymouth pine. Same, fruit natural size. 1. Scale, exterior view. 2. Same, inside 

 view. 3. Intact seed. 4. Same, transverse section. 



