PlXAOKA.E 9 



4. Leaves green. (Cedar of Lebanon.) C. Libani. 

 Leaves glaucous. C. Libani glauca. 



5. Conical. (Hardy cedar.) C. atlantica. 

 Narrowly oblong. C. atlantica fastigiata. 



6. Of erect growth. 7. 



Very spreading or prostrate. C. Deodara pendula. 



7. Narrowly oblong. C. Deodara fastigiata. 

 Rather conical. 8. 



8. Leaves green. O. Deodara viridis. 

 'Leaves bluish or glaucous. 9. 



Leaves yellow. C. Deodara aurea. 



9. Leaves not whorled. 10. 



Leaves whorled below. C. Deodara verticillata. 



10. Leaves merely blue-green. (Deodar cedar). C. Deodara. 



11. Glaucous throughout. C. Deodara argentea. 

 Beconling white at the tips. C. Deodara albo-spica. 



PINUS. Pine. 



Conical or openly branched evergreen trees with soft and 

 white or hard and yellow ductless abundantly resinous wood; 

 moderate roundish twigs; small homogeneous pith; 5-ranked 

 spurs crowned by tufts of usually 2, 3 or 5 elongated needle- 

 like "leaves" or phylloid shoots; round spur-scars; narrowly 

 crescent-shaped scale-scars ; no stipule-scars; ovoid sessile 

 buds with sometimes resinous scales; monoecious naked cal- 

 kin-like or cone-like naked flowers; and cones with 2 usually 

 thin-winged seeds above each of the mostly thickened scales. 



1. Needles 2 in a cluster. 2. 



Needles prevailingly 3 in a cluster. 15. 

 Needles 5 in a cluster. 16. 



2. Branches orange or red or leaves' whitened. 3. 

 Branches grayish or black. 9. 



3. Needles short (4-8 cm.), bluish: bark usually orange. 4. 

 Needles long (10-15 cm.), green. 14. 



4. Shrubs. 5. 

 Trees. 6. 



