CONSPECTUS 
Pacific Slope Cone-bearers. 
FA SCIC(/LARES, Leaves in bundles. 
The Pines, Pinus , Tournefort. 
White-wood Pines. 
1. Sugar Pine. 
2. Silver Pine. 
3. Mexican Pine. 
4. Rocky Mt. Pine. 
5. Alpine Pine. 
P. Lambertiana , Douglas. 
P. monticola , Douglas. 
P. strobiformis, Engelm. 
P.flexilis, James. 
P. albicaulis, Engelm. 
Plume-branched Pines. 
6. Balfour Pine. P. Balfouricina, Murray. 
7. Bristle-cone Pine. P. dristata , Engelm. 
True Nut Pines. 
8. Single-leaf Pine. 
9. Mexican Pinon. 
10. New Mexican Pinon. 
11. Parry Pine. 
P. Monophylia , Torr. and Frem. 
P. cembroides, Zucc. 
P. edulis, Engelm. 
P . gitadrifoiia, Parry. 
Broken-Cone Pines. 
12. Western Yellow Pine. P. ponderosa, Lawson. 
13. Rocky Mt. Yellow Pine. Variety scopulorum , Engelm. 
14. Jeffrey (or Black) Pine. P. jpepfreyi" Ore. Com.” 
15. Arizona Yellow Pine. P. Arizonica, Engelm. 
16. Mayr’s Pine. P. Mayriana , Sudworth. 
17. Apache Pine. P. Apacheca, Lemmon. 
Thimble-Cone Pines. 
18. North Shore Pine. 
Pigmy Pine. 
19. Tamarack Pine. 
20. Lodge-pole Pine. 
P. co 7 itorta, Loudon. 
Variety famelica , Lemmon. 
P. Murray ana, “ Ore. Com.” 
Variety tenuis, Lemmon. 
Heavy-Cone Pines. 
21. Big-cone Pine. P. Coulteri, Don, 
22. Gray-leaf Pine. P . Sabiniana , Dougl. 
23. Torrey (or Lone) Pine. P. Torreyana , Parry. 
Persistent-Cone Pines. 
24. Monterey Pine. 
25. Narrow-cone Pine. 
26. Swamp-loving Pine. 
27. Chihuahua Pine. 
P. radiata, Don. 
P. attemiata , Lemmon. 
P. nmricata , Don. 
P. Chihuahuana , Engelm. 
TUFT-LEAVED TREES 
True Larches, Larix , Link. 
1. Western Larch. L. occidentalis . Nuttall. 
2. Woolly Larch. L. Lyallii , Parlat. 
SO LIT A RES, Single-leaved Trees. 
PENDENTES, Pendent fruited Trees. 
True Spruces, Picea , Link. 
1. White Spruce. P. laxa, Sargent. 
2. Blue Spruce. P. pungens , Engelm. 
3. Engelmann Spruce. P, Engelmanni , Engelm. 
4. Tide-land Spruce. P. Sitchensis, Carriere. 
5. Weeping Spruce. P. Bre-zueriana, Watson. 
