SENNA, Cassia senna.
sanai, sena, . . ARAB. SURTIR-1/111ki, CIEJ., HIND. Sana-pat, . . . BENG. Senne, . . . PORT. Pwa-goeingiu-yet, . BERM.. Aleksandruskii, . Rus. Sennes-blade, DAN., SW. Rutallapotaka, . SANSK.
. . DUT. Sen , SP.
sene, FR. Nilaverei,. . . . Thar.
Sennablater, . . Gxn. Nayla tungadu,. . TEL. SelleSpfiftnZe, . . „ Nita ponna, . . . „ Tile leaves of Cassia elougata, C. acutifolia, C. lanceolata, and C. obovata all agree in certain properties,—the odour of the leaves is heavy and peculiar, taste bitter, nauseous, and glutinous, powder yellowish-green, and all yield the purgat ive amnia of commerce. At least eight varieties of senna leaf were known in commerce in Europe. —Senna palthe, Senna of Sennaar or Alexandria, of Tripoli, of Aleppo, of Mocha, of Senegambia, false or Argue', and the Tinnevelly. The Senna palthe is known to have contained Cynatichum olceifoliurn, and in this variety of the drug the poisonous leaves of Coriaria myrtifolia were found by 3f. Dublane. The 3focha senna is common in
all the bazars of India. The Tinnevelly drug is in species identical with the 3foeha. Tinnevellysenna is that most esteemed by the profession, and is known by the size of the leaflets, which are much larger than those of any other variety; they are also less brittle and thinner, and are generally found in a very perfect state ; while the other varieties, especially the Alexandrian, are more or less broken. Senna grown in the southern provinces of the Madras Presidency is highly esteemed in Britain, and is preferred by many to all other sorts, as being both cheaper and purer. Senna, raised at Dapuri from Tinnevelly seed, has been found equal to the best Arabian seam. The picking of senna leaves in Glijerat of sowings in August, is made in September ; and Dr. Burn states that the virtues of the leaf depend greatly on the time of the picking.