THE DICOTYLEDONS 547 
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Fic. 415.—Branch of a Quassia yielding plant, Picrasma excelsa. Note the imparipi- 
mate leaves with winged petioles and axillary flower clusters. (After Sayre.) 
(Picrasma) or pod (Quassia). The plants are distinguished from 
those of the Rutacee by the absence of secretory cavities. 
OFFICIAL DruGc Part Usep BOTANICAL ORIGIN HAsIrat 
: Picrasma excelsa West Indies 
Quassia Wood 1 ; : 
Quassia amara Surinam 
UnorriciaL Druc 
Si Bark of Simaruba officinalis South America 
weiner cn vce -Ssseatne amara Central America 
Bahamas and 
Florida 
BuRSERACE2 OR Myrru Famity.—Shrubs and trees of 
tropical climes having secretion reservoirs in their bark which 
PO RE ee ey ee ae eae Sara pesee 
