842 



Princewood 



for ornament near its home and would seem to deserve more general use as a 

 garden plant in the southern States. 



Its generic name is in commemoration of General Charles Cotesworth Pinckney 

 of South Carolina, an officer in the Revolution, a botanist and chemist. There is 

 but I species known. 



II. PRINCEWOOD 



GENUS EXOSTEMA L. C. RICHARD 

 Species Exostema caribaeum (Jacquin) Roemer and Schultes 

 Cinchona caribcea Jacquin 



HIS small. West Indian and Central American tree or shrub occurs 

 on the sandy coast of the Florida Keys, reaching a height of about 8 

 meters, with a tmnk diameter of 3 dm. 



The ascending branches are slender, and form an irregular tree; 

 the bark is about 3 mm. thick, gray, deeply fissured into smooth plates. The twigs 

 are round, smooth, green, becoming brown and finally gray. The persistent leaves 

 are opposite, oblong to clhptic or ovate-lanceolate, 4 to 8 cm. long, sharp or taper- 

 pointed at each end, smooth, dark 

 green above, yellowish green and 

 prominently yellow-veined be- 

 neath; the leaf-stalk is slender 

 and yellow, 5 to 10 mm. long, the 

 stipules small, triangular. The 

 flowers, opening at any season, 

 are perfect, solitary in the axils 

 of the leaves, on peduncles some- 

 what shorter than the leaf-stalks; 

 the calyx-tube is narrowly bell- 

 shaped, 4 to 7 mm. long, the 5 

 lobes triangular and much shorter 

 than the tube; the white corolla is funnel-shaped, the tube narrow, 3.5 to 4 cm. 

 long, somewhat hairy in the throat, the linear, blunt lobes spreading, nearly as long 

 as the tube; stamens alternate with the corolla lobes, long-exserted, their filaments 

 slender, united at the base; anthers linear-oblong, opening lengthwise; the ovary 

 is inferior, 2-celled; styles united, fiHform; stigma entire; ovules numerous. The 

 fruit is an eUipsoid capsule, about 10 mm. long, dark brown, opening into 2 

 2-parted valves; the numerous seeds are compressed, 3 mm. long, dark brown with 

 a lighter winged margin. 



The wood is very hard, strong, close-grained, brown with yellow streaks and 

 satiny; its specific gravity is about 0.93. The bark of this and other species of 

 the genus was once in high repute as a febrifuge, but like the bark of other mem- 



Princewood. 



