Page 185 - Pharmacognosy 2 PG303

Pharmacognosy-2 (PG303) Level 2 Clinical Pharmacy-Pharm D

Powdered Jalap. 1, cork; 2, starch; 3, parenchyma; 4;12, vessel;
5, tracheids; 6, sclereids; 7, par. and sclereids; 8, mass of resin;
9, periderm; 10, tracheidal vessel; ll, crystals of calcium oxalate.

The root of piptostegia pisonis Mart (Fam, convolvulaceae) known as
piptostegia root "and Brazilian Jalap. It occurs in transverse, circular or oval,
sections, varying from about 2.5-8 cm. in diameter and from about 0.3-0.6 or 0.8
cm. in thickness, its cut surface is pale yellowish-brown, marked with several
concentric cambium rings and many resin dots. This drug contains about 20 % of
resin which is mostly insoluble in ether.

Indian Jalap or Turpeth Root: It is the dried root and stem of I. turpethum
R. Br. (Fam. convolvulaceae). It occurs in pieces of varying dimensions of a dull
grayish or brownish color and longitudinally furrowed and wrinkled. Its fracture is
short, and its taste is nauseous, It contains up to 10 % of total resin.

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