RUBIACEAE. 343 
PINCKNEYA. Georgia Bark. 
(Family Rubiaceae). 
Shrubs, or somewhat arbores- 
cent: deciduous. Twigs rather 
stout, terete: pith round, very 
white, continuous. Buds solitary, 
sessile, ovoid and small or the ter- 
minal irregularly conical and en- 
larged, with 1 or 2 pairs of ex- 
posed scales. Leaf-scars opposite, 
crescent-shaped to angularly is- 
odiametric, at first much raised: 
bundle-trace 1, crescent- or C- 
shaped, compound: stipular scars 
* or membrane connecting the leaf- 
scars. 
A century ago Pinckneya pu- 
bens possessed considerable repute 
in the South as a specific for ma- 
larial fevers. The common name 
Georgia bark comes from this use 
of the bitter bark. The genus is 
related to Cinchona, the source 
of quinine, and it was thought at one time that Peruvian or 
cinchora bark might find a rival in Georgia or pinckneya bark. 
Twigs from villous glabrescent. P. pubens, 
