CLASSIFICATION OF ANGIOSPERMS. 



373 



Pichi is the dried leafy twigs of Fahiana inihricata, a shrub 

 with small, scale-like leaves, indigenous to Chile. It contains a 

 volatile oil; o.i per cent, of a bitter alkaloid; a glucoside resem- 

 bling sesculin ; and a bitter resin. 



Solanum Dulcamara (Bitter sweet) is a perennial, climbing 

 herbaceous plant, indigenous to Europe and Asia and naturalized 



A ^.^^ E 







o 





 Q O 



Fig. 175 a. Scopola {Scopolia carnioUca); A. rhizome showing prominent stem scars; 

 B, longitudinal section showing reticulate tracheae, parenchyma cells containing starch and 

 one with sohenoidal micro- crystals of calcium oxalate; C. individual crystals which sepa- 

 rate from sections or in the powder, the single crystals being from 5 to lo m in diameter and 

 the aggregates being 15 <i in diam.eter; D. isolated starch grains, which are s to 20 m in diam- 

 eter; E, field showing starch grains and crystals of calcium oxalate under polarized light. 



in the Northern United States. The branches which have begun 

 to develop periderm are collected, and were formerly official as 

 Dulcamara. They are cut into pieces lo to 20 mm. long which 

 are greenish-brown, hollow, with a sweetish, bitter taste and con- 

 tain a glucoside, dulcamarin, and the gluco-alkaloid solanine. 



