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PHARMACOGNOSY. 
AI RANTII DULCIS CORTEX (Sweet Orange Peel). 
The outer layer of the rind of the fresh fruit of 
Citrus Aurantium (Fam. Rutaceae), a tree resembling 
Citrus vulgaris, but more widely cultivated. The outer 
yellowish layer is the part employed, and is usually 
removed from the fruit by grating. The dried rind is 
also an article of commerce. 
Description. — Gut into small pieces or shreds ; ex- 
ternally orange-yellow, with numerous circular depres- 
sions and numerous large oil-secretion reservoirs ; 
fracture coriaceous, tough ; soft when fresh ; odor aro- 
matic ; taste slightly bitter. 
Constituents. — Resembling those of bitter orange 
peel, except that the bitter principles are not present. 
LIMOXIS CORTEX (Lemon Peel). 
The rind of the fresh fruit of Citrus medica, var. 
Limonum (Fam. Rutacese), a tree indigenous to North- 
ern India and cultivated in the European countries 
bordering the Mediterranean, the West Indies and 
other tropical and subtropical countries. The outer 
yellowish layer is the part used and it is removed by 
grating. 
Description. — In freshly grated lemon-yellow frag- 
ments, with numerous large oil-secretion reservoirs 
and oil-globules ; odor aromatic ; taste aromatic and 
slightly bitter. 
Constituents. — Volatile oil, hesperidin, calcium 
oxalate, ash about 4 per cent. 
TJRANTII AMARI CORTEX (Bitter Orange Peel). 
The rind of the unripe fruit of Citrus vulgaris Risso 
fFam. Rutacese), a tree indigenous to Northern India 
and cultivated in the Mediterranean region, the West 
Indies and the States bordering on the. Gulf of Mexico 
