CITRUS ACIDA 65 



Murraya Koenigi, Spreng. (Bergera Koenigi, L.; Connarus 



sp., Blanco.) 



NOM. VULG.— (?) 



Botanical Description. — Leaves alternate, odd-pinnate. 

 Leaflets obliquely ovate, acute, entire and glabrous. The 

 testa of the seed bears no down, and may be divided into two 

 parts. The decoction of the leaves of this species as well as the 

 former is used to allay toothache. 



Citrus acida, F. (C. notissima, Blanco.) 



Nom. Vulg. — Limon, Sp.; Dayap, Tag.; Lemon, Eng. 



Uses. — The essence (essential oil) and juice of the fruit are the 

 parts of the plant used in therapeutics. The essence extracted 

 from the rind is yellow, fragrant, slightly bitter ; density, 0.856 ; 

 boiling point 165°. The juice which is turbid and pale yellow 

 in color contains Sfc citric acid, 3— 5^> gum and sugar and 2^^ 

 inorganic salts. The essence is used to flavor certain pharma- 

 ceutical preparations, and is a diffusible stimulant which may 

 be given internally in doses of 3-6 drops on a little sugar. 

 The bitter rind is occasionally used in infusion as a stomachic 

 and stimulant. The juice is most commonly used in lemonade, 

 a cooling drink which, used intemperately in the Philippines, 

 is apt to cause gastro-intestinal trouble, so commonly attributed 

 to " irritation," but really the result of a general atony of the di- 

 gestive organs. Lemon juice is also used with very good re- 

 sults as a local cleansing application for sore throat, as well as 

 externally on fetid ulcers. In some forms of malarial fever it 

 seems to have given satisfactory results, administered internally. 



In many navies lemon juice forms a part of the sea ration 

 as a preventive of scurvy, upon which it exercises a real and 

 noteworthy action. The Danish navy adopted it for this pur- 

 pose in 1770, the English navy followed, then the French and 

 possibly others. The English call it lime-juice, and its pre- 

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