CORNUS FLORIDA 



337 



CORNACE^. Dogwood Family 



409. CORNUS FLORIDA. DOGWOOD. Cornus, N.P. The root-bark of Cor'nus 

 flori'da Linne. Habitat: North America. Appears in pieces of various sizes, 

 generally broken up and more or less curved ; about 2 mm. (%% in.) in thickness 

 when deprived of its brownish-gray cork, as it generally is, with a fawn- 

 colored outer surface; inner surface red, due to the tannin contained, plainly 

 radially striate; fracture short, whitish, showing numerous strias of brown- 

 ish-yellow stone cells. Inodorous; taste astringent and bitter, the bitter 

 principle being termed cornin. It yields a grayish powder, tinged with red. 

 Tonic and astringent, and almost equal to cinchona as an antiperiodic in 

 intermittent fevers. Dose: 10 to 30 gr. (0.6 to 2 Gm.). The barks of two 

 other dogwoods, Cor'nus circina'ta (green osier bark or round-leaved dogwood 

 bark) and Cor'nus serice'a, are often used. 



FIG. 193. Cornus florida Flowering branch. 



410. GARRYA FREMONTII Torrey. CALIFORNIA FEVER BUSH. (Leaves.) 

 Used as a tonic and antiperiodic in chills and fevers. They contain a bitter 

 principle similar to quinine in therapeutic action. Dose: 15 to 30 gr. (i to 

 2 Gm.). 



ERICACEAE. Heath Family 



Trees or shrubs, rarely herbs; leaves generally foliaceous; flowers regular, 

 gamopetalous, usually bell-shaped or urn-shaped; anthers two-celled, with porous 

 dehiscence. A large order, with leaves astringent and bitter, because of the pres- 

 ence of glucosides. Some species contain a poisonous principle, andromedotoxin. 



Synopsis of Drugs from the Ericaceae 



A. Leaves. 



UVAURSI, 411. 

 Arctostaphylos, 412. 

 Gaultheria, 413. 

 *Chimaphila, 414. 

 Epiggea, 415. 

 Vaccinium, 416. 



22 



Kalmia, 417. 

 Ledum, 418. 

 Oxydendrum, 419. 

 Rhododendron, 420. 

 Volatile Oil. 

 OLEUM GAULTHERLE, 413 a. 



