104 



416. ORIGANUM VULGARE, continued. 



ganum. The Oil of Origanum of commerce is obtained from Thymus 

 vulgaris, L. See P. J. [1], vol. x., pp. 6 and 324. Pharmacographia, 

 p. 438. By redistillation the oil becomes colourless, and forms the " 01. 

 Origani Alb. " of the wholesale druggists. The cheap Oil of Origanum is a 

 mixture of turpentine, oil of spike (Lavandula spica), oil of rosemary, 

 and oil of thyme, coloured with alkanet. This adulterated oil is imported, 

 and is also mixed in this country. See Bentley and Trimen, Med. Plants, 

 tab. 204, 205. 



417. POGOSTEMON PATCHOULI, Pellet. (Pucha-pat, Patchouli.) 



a. Leaves. 

 5. Essential oil. 



Note. This plant is not used in medicine. See P. J. [1], vol. iv., p. 

 80 ; ix., p. 282 ; and for fig. of plant, P. J. [1], vol. viii., p. 576. 



418. ROSMARINUS OFFICINALIS, L. (Rosemary.) 



a. Flowering tops. 

 Z>. Essential oil. 



Note. The infusion was formerly esteemed a nervine tonic, and is still 

 used in nervous complaints by herbalists. Waring, Therapeutics, p. 559. 

 The oil is often adulterated with turpentine. " Camphine," or highly 

 rectified oil of turpentine, is the kind often used in adulterating volatile 

 oils. See Bentley and Trimen, Med. Plants, tab. 207. 



419. SALVIA OFFICINALIS, L. (Garden Sage.) 



a. Essential oil. See Bentley and Trimen, Med. Plants, tab. 206. 

 Note. Used only as a culinary flavouring agent. The leaves are some- 

 times used to make a gargle for sore throat. 



420. SCUTELLARIA LATERiFLORA, L. (American Skullcap, Side Flower- 



ing Skullcap, Mad-Dog Weed, Hoodwort.) 

 a. Herb. 



Note. This plant is highly esteemed by the Eclectic practitioners of 

 America as a powerful nervine tonic, and is used by them for neuralgia, 

 chorea, and other nervous affections. The herb is official in the second- 

 ary list of the U. S. Pharmacopoeia. See Amer. Dispens., p. 758. 



MYOPORACE^E. 



421. AVICENNIA NITIDA, L. (Courida Tree.) 



a. Bark. 



Note. This specimen was in the International Exhibition of 1851, and 

 was contributed by Mr. David Shier, of Demerary. The bark is used in 

 tanning. See P. J. [1], vol. xi., p. 160. 



SELAGINACE^E. 



422. GLOBULARIA ALYPUM, L. (Wild Senna.) 



a. Leaves. For fig., see Hist, des Drag., vol. ii., p. 453. 

 Note. This specimen was presented by Dr. C. Martius. The leaves 

 are said to have been frequently found among senna leaves in Germany. 

 P. J. [1], vol. xvi., p. 426. The leaves possess purgative properties in 

 doses of 50 to 100 grains, when given in the form of decoction. See also 

 Bentley, Man. Bot., p. 592. The. leaves have a bitter taste, and are covered 

 with minute white points, only visible under a lens. 



