2 CONIFEROUS TREES 



III. Fir Tribe (ABiETiNEiE) 



11. Abies. 14. Picea. 17. Pseudotsuga. 



12. Cedrus. 15. Pinus. 18. Tsuga. 



13. Larix. 16. Pseudolarix. 19. Keteleeria. 



IV. Araucaria Tribe (Araucarie^) 

 20. Araucaria. 21. Cunninghamia. 



Natural Order TAXACE^ 



With one exception, Ginkgo, these are evergreen 

 trees or shrubs. Flowers unisexual, mostly axillary 

 and dioecious. Male flowers in catkins ; females 

 naked, solitary, or rarely in twos. Fruit more or 

 less drupaceous, the seed coat being either dry or 

 eventually fleshy. This Order may be subdivided 

 as follows : 



I. Salisburia Tribe (Salisburie^) 

 22. Ginkgo. 23. Cephalotaxus. 24. Torreya. 



II. Yew Tribe (Taxe^) 

 25. Taxus. 26. Dacrydium. 



III. Podocarpus Tribe (Podocarpe^) 

 27. Podocarpus. 28. Prumnopitys. 29. Saxegothea. 



ABIES, LinncBUs 



SILVER FIRS 



Pre-Linnean botanists distinguished the genera 

 Picea and Abies, placing the Spruce in the former 

 and the Silver Fir in the latter genus. Linnaeus, 

 however, reversed the terms, and the confusion 

 in botanical nomenclature has continued to the 

 present time. In accordance with the universally 

 adopted plan of Bentham and Hooker, the silver 

 firs are here included under Abies, and the spruces 

 under Picea. 



