protection, whilst others have been quite killed: a difference I am inclined to attribute to some of my seeds 
having been gathered from plants which grew at 8000 feet, and others at nearly 18,000 feet elevation. 
Puate XXI. 4. Male branch. 2B. Female branch. Fig. 1, 2, 8. Anthers. 4. Pollen. 5. Young cone. 6, 7, 8. Scales 
and bracts. 9. Ripe cone. 10, 11. Its scales and bracts. 12. Ripe seeds. 13. The same :—al/ (dut 5, 9, and 12) 
more or less magnified. 
