SYNOPSIS OF THE GENERA OF CONIFERS. 71 



Cedrus (CEDAR.) 3. Leaves 4-sided, clustered on the 

 old branches, solitary and scattered on the young shoots ; 

 scales of cones deciduous. 



* * Seeds varying in number, and free from the scale. 

 Cunninghamia* 4. Leaves linear-falcate, alternate, de- 

 current ; scales of cone 3-seeded, without bracts. 



Sciadopitys. 5. Leaves whorled, elongated, sub-fal- 

 cate ; scales of cone with small bracts, 5 to 9-seeded. 



ArthrotaxiSi 11. Leaves scale-formed; scales of the 

 cone 3 to 5-seeded, (usually dioecious.) 



Sequoia* 6. Leaves oblong awl-shaped or linear, scat- 

 tered or somewhat two-rowed; scales of cone shield-shap- 

 ed, 3 to 7-seeded. 



B Flowers monoecious; leaves deciduous, clustered on the old 

 branches and solitary on the young shoots. 



Larix (LARCH.) 7. Cones with persistent scales. 



Pseudolarix (FALSE LARCH.) 8. Cones with de- 

 ciduous and divergent scales. 



C Flowers dioecious ; leaves persistent. 



Araucaria* 9. Leaves scale-formed; anthers with 

 many cells ; scales of cone mostly deciduous, with a single 

 adherent seed. 



Dammara. 10. Leaves oblong-lanceolate; scales of 

 cone with 1 free seed. 



Arthrotaxis. 11. Leaves scale-formed ; scales of cone 

 with 3 to 5 free seeds, (sometimes monoecious.) 



SUB-ORDER II. THE CYPRESS SUB-FAMILY.- 



(ClJPRESSLOLE.) 



Fertile flowers in aments, consisting of few scales with- 

 out bracts ; scales mostly shield-shaped, and bearing one 

 to several erect ovules ; fruit a strobile of few scales or 

 berry-like ; buds mostly naked. 

 A Leaves persistent. 



* Fruit berry-like at maturity. 



