GENERA. XV 



Cones globular, and composed of angular, thick, -woody- 

 scales, shield-shaped externally. 



Seeds numerous, angularly compressed, free and 

 -winged on the margins. 

 Gen. CHAMiEOYPAEis, Spach. Leaves scale-formed, in opposite 

 pairs, four-ro-wed, -with a gland or sunken groove on the 

 back, glaucous and jersistent. 



Flowers, male and female on the same plant, but 

 separate. 



Cones globular or oblong, small and -woody, -with 

 mostly seven scales, in opposite alternate pairs. 



Seeds convex, hard-shelled, and in t-wos at the base of 

 the scales, in sunken grooves, and either -wingless or very 

 slightly furnished -with rudimentary ones. . 



Gen. Eetistospora, Siebold. Leaves linear or scale-formed, in 

 threes or opposite pairs, mostly spreading and persistent. 



Plowers, male and female on the same plant, but. 

 separate. 



Cones small, globular, -woody, and -with from five 

 to six opposite pairs of scales, shield-shaped on the^ 

 top. 



Seeds, two at the base of each scale, in grooves, coated 

 ■with resin, and furnished -with membranaceous wings. 



Gen. FiTZ-EoTA, Rooke/r. Leaves in whorls of three, but some- 

 times in twos and fours, ovate-oblong, flat, without foot- 

 stalks, and more or less spreading. 



Flowers, male and female on separate plants. 



Cones, star-like bodies, consisting of nine scales, in 

 whorls of threes, with their edges bent outwards. 



Seeds, mostly three under each fertile scale, surrounded 

 by a broad wing, the central one attached to the scale, 

 the other two to the axile. 

 Gen, DiSELMA, /. Hoolcer. Leaves small, scale-formed, or ovate^ 

 rhomboid, and regularly imbricated in four rows. 



Flowers, male and female on separate plants, and 

 terminal. - 



Cones very small, globular, and composed of four 



