CRUDE DRUGS. 513 



I. Barks. — Continued, 



b. Fracture fibrous. 



Tough-fibrous Gossypii Cortex 



Short-fibrous Rubus 



B. Grayish to grayish-black. 



a. Fracture fibrous. 



Fracture silky-fibrous Euonymus 



Fracture uneven, fibrous Viburnum Opulus 



b. Fracture short. 



o With conical cork-wings ... Southern Prickly Ash 

 )8 Cork-wings wanting. 



Inner surface with acicular 

 crystals Northern Prickly Ash 



Inner surface non-crystalline Granatum 



C. Greenish in color. 



Fracture tough-fibrous Mezereum 



Fracture short, granular Prunus Virginiana 



2. Periderm removed. 



A. Aromatic odor and taste. 



Yellowish-brown Cinnamomum Zeylanicum 



Reddish-brown Sassafras 



B. Without aromatic properties. 



a. Surface crystalline Quillaja 



b. Surface non-crystalline. 



Taste astringent Quercus Alba 



Taste mucilaginous Ulnius 



II. Woods. 



1. Light or bright yellow Quassia 



2. Yellowish-red to yellowish-brown. 



A. Imparts a violet or zvine-color to water Hjematoxylon 



B. Coloring matter insoluble in water Santalum Rubrum 



III. Pith. 



Whitish, light in weight Sassafras Medulla 



CINNAMOMUM.— CINNAMON BARK.— The dried bark 



■of the stem and branches of various species of Cinnamomum 



(Fam. Lauracese), trees indigenous to tropical Asia (p. 278), 



"where they are now extensively cultivated, and from which three 



■commercial kinds of bark are obtained: (i) Saigon Cinnamon, 



33 



