GENERA. XIU 



Cones pendent, oblong, ratlier large, brittle, and 

 covered with divergent scales, whicb are very deciduous, 

 pointed and extended at the apex, and heart-shaped at 

 the base. 



Seeds irregularly shaped, with a soft thin covering, 

 and ample wings. 

 Gen. Cbdrus, Link (the Cedars). Leaves persistent, needle- 

 shaped, somewhat four-sided, stiff, and disposed in 

 bundles on the adult branches. 



Flowers, male and female mostly on the same plant, 

 but separate. 



Cones erect, ovate, bluntly depressed at the ends, 

 axillary, and growing on the upper side of the branches, 

 with thin, closely-placed scales, more or less deciduous. 



Seeds somewhat angular, with a soft tegumental 

 covering, full of turpentine, and ample, persistent 

 wings. 



Sec. II. AEAUCAEIJi Scales one-seeded. 



Gen. Aeaucaeia, Jussieu (the Araucarias). Lea/ves scale- 

 formed, persistent, and widest at the base. 

 Flowers, male and female on separate plants. 

 Cones mostly large, globular, and terminal ; with the 

 scales deciduous, or partially so. 



Seeds more or less attached to the scales. 

 Sec. I. CoLUMBEA, or the true Araucarias, with broad- 

 lanceolate leaves, and seed-leaves germinating under 

 ground. 

 Sec. II. EuTACTA, or False Araucarias, with awl-shaped 

 leaves, and seed-leaves produced above ground. 

 Gen. Dammara, Bmnphiiis (the Wax Pines). Leaves broad, 

 flat, petiolated, opposite or alternate, and leathery. 

 Flowers, male and female on separate plants. 

 Cones ovate or globular, axillary, and with persistent 

 scales, wanting the dorsal bractea, 

 Seeds unattached and solitary. 



Sec. III. CUNNINGHAMIJI. Seeds free, and from three to seven 

 \inder each scale. 



