APPENDIX. 227 



Abies religiosa, the Sacred Fir of Mexico. 

 " bracteata, one hundred feet. 

 " Chnadensis, MX. Common Hemlock, fifty to eighty feet. 



Pseudoteuga Douglasii, Can. Douglas Spruce, one hundred 

 and fifty to three hundred feet. 



Picea Engelmanni, Eng. Spruce, sixty to one hundred feet. 

 " pungens, Eng. Balsam Spruce, sixty to one hundred feet. 



Pinus flexilis, James. Pine, sixty feet. 



Pinus ponderosa, Dougl. var. Scrophulorum, Eng. Yellow 

 Pine, eighty to one hundred feet. 



Salisburia adiantifolia (or Ginkgo biloba), forty to eighty feet. 



Pinus edulis, Eng. The Pifion or Nut Pine, ten to fifteen feet. 



Sequoya semperviceus, Sequoya gigantea, Ked Wood, two hun- 

 dred to three hundred feet, wood almost imperishable. 

 Both these trees should be planted, as they are likely to 

 become extinct unless rescued by cultivation. 



Eucalyptus globulus, Blue Gum, peculiarly valuable in swampy 

 or malarial districts. One hundred and fifty varieties of 

 Eucalyptus, " the tree of the future." Cf. article in Pop. 

 Sci. Mo., vol. xii. : " The Eucalyptus of the Future," by 

 Samuel Lockwood. See also, below, list by W. S. Lyon. 



Eugenia jambos, Eose Apple, or Jamrosade, twenty to thirty 

 feet, should be cultivated in the Southern States for its 

 delicious fruit. 



Catalpa bignonioides, Walt. Catalpa, thirty to fifty feet, a beau- 

 tiful tree, possessing great advantages for timber, being 

 the cheapest and easiest grown of all our forest trees, 

 native or introduced, and also the most rapid in its growth. 



Paulownia imperial, Siebold. A grand flowering-tree, forty 

 feet high, with immense leaves, of rapid growth, and par- 



