Class X. Order I. 161 



which is most powerful in the bark of the root. The young 

 twigs, and especially the pith, abound in mucilage. When first 

 introduced into Europe it acquired great medicinal reputation, 

 and was sold at the high price of fifty livres per pound. An 

 express treatise entitled Sassafrasologia was written to celebrate 

 its virtues. Its properties however appear to be those which 

 are common to other warm aromatics. 



Class X. DECANDRIA. Ten stamens. 



Order I. MONOGYMIJ. One style. 



A. Flowers monopetalous. 



167. EPIG&A. Calyx double ; the outer three 

 leaved, the inner five parted ; corolla salver shaped ; 

 capsule five celled. 



168. GAULTHERIA. Calyx double; the outer two 

 leaved, the inner five cleft ; corolla ovate ; capsule 

 five celled, covered by the inner calyx, which be- 

 comes similar to a berry. 



169. ARBUTUS. Calyx five parted ; corolla ovate, 

 pellucid at the base ; berry superior, five celled. 



170. ANDROMEDA. Calyx five parted ; corolla 

 ovate ; capsule superior, five celled, the partitions 

 from the middle of the valves. 



171. RHODODENDRON. Calyx five parted ; corol- 

 la somewhat funnel form ; stamens declined ; capsule 

 five celled. 



172. KALMIA. Calyx five parted ; corolla salver 

 shaped, with ten prominences underneath, and the 



border five horned ; capsule five celled, 

 si 



