341 



CHIMAPHILA 



CONSTITUENTS. Same as uva ursi (411) with the addition of chimaphilin, 



(yellow, odorless, tasteless, volatile crystals), and several white crystalline 

 principles. 



Preparation of Chimaphilin. When the leaves are distilled with water, yellow 

 crystals are deposited in the neck of the retort. These, dissolved out with 

 chloroform, will deposit from this solution on evaporation. Shaking out the 

 tincture with chloroform will also dissolve out the principle. 



ACTION AND USES. Like uva ursi (411). Also used in scrofula and other cuta- 

 neous eruptions. Dose: 15 to 60 gr. (i to 4 Gm.). 



[Fio. 195. Chimaphila umbellata. 



415. EPIG^A. TRAILING ARBUTUS. GRAVEL PLANT. .The leaves of Epigae'a 

 re'pens Linn. Habitat: North America, on woody hillsides. Ovate,- about 

 50 mm. (2 in.) long, with heart-shaped base and mucronate apex; coriaceous; 

 margin entire. They contain the same three principles that uva ursi does and 

 have the same general medicinal properties, but are particularly valuable in 

 those cases of local irritation of the urinary organs in which they have often 

 given relief when uva ursi and buchu had failed. They are also claimed to be 

 highly beneficial in lithic acid gravel. Dose: 15 to 60 gr. (>r to 4 Gm.), in 

 decoction or fluidextract. 



416. VACCINIUM CRASSIFpLIUM Andrzejowski. The leaves of this indige- 

 nous shrub have properties very much resembling uva ursi and iriay be used 

 in its stead. (: 



417. KALMIA. MOUNTAIN LAUREL. SPOONWOOD. The leaves of Kal'mia 

 latifo'lia Linne, an evergreen shrub common 6n the hills and mountains 



