BOTANIC MATERIA MEDICA, 171 
fruit in the southern United States. The leaves 
are glossy, smooth, and oval or ovate-oblong in 
shape, bearing many transparent vesicles upon 
their surface which are filled with oil and, when 
bruised, highly fragrant. The flowers are white, 
quite large, and usually single, but sometimes 
clustered; the corolla has five petals, stamens 
many and united (polydelphous) at the base, one 
style with a globular stigma; calyx five-toothed. 
The leaves have some tonic and stimulating 
properties, for which they have been used, and, 
though no longer classed as remedies, are prin- 
cipally utilized for the oil they contain. The 
various species of the aurantii differ as to the 
size of the tree and the character and quality of 
the fruit; of the above-named species there are 
two varieties, the CITRUS BIGARADIA and the cirt- 
RUS AURANTIUM, the former being the bitter or 
Seville and the latter the Portugal or sweet 
orange. The fruit of the aurantii will be dis- 
cussed under the head of fruits, also the rind, 
peel, or pericarp, misnamed cortex (bark). 
Belladonne, Belladonna, Atropia Belledon- 
na.—Natural order Solanaceze. Belladonna has 
been described under the head of roots, and we 
will, therefore, confine our remarks to the leaf. 
This little and very poisonous perennial is 
adorned with broadly ovate or ovate-oblong 
leaves much narrowed at the apex; they are en- 
tirely smooth and 4 to 6 inches (10 to 15 centi- 
meters) long, presenting to the eye a dusky 
gteen color. According to analysis, they con- 
tain mucilage, wax, albumen, asparagin, and 
atropine (the active principle), which is said to 
be heavy, differing in this respect from that ob- 
