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BARKS Definition Titles botanical origins and families of the official barks of
Pharmacognosy defined occurrence of crude drugs contamination adulteration
16 other sections not shown
acid acid-insoluble ash acrid aleurone alkaloid aromatic Average Dose.—2 Gm bark bast fibers bitter Botanical branches brown brownish calcium oxalate calyx cambium carpels cent color commercial supplies consists cork Cork cambium cortex crystals cultivated diameter drug drupe elongated endodermis endosperm epicarp epidermal cells epidermis fibrovascular bundles fixed oil flowers foreign organic matter fracture fragments fruit glucoside inflorescence inner layer leaf leaves length lignified Linne longitudinally medullary rays microscope monoclinic mucilage non-glandular hairs numerous occurs odor outer ovary ovate parenchyma parenchyma cells pericarp pericycle petiolate phloem pistil pith Plant.—A plants pores porous portion Powdered Production and Commerce.—The Purity Rubric.—Not raceme reddish-brown region resin reticulate rhizome rhizome and roots rosette aggregates sclerenchyma sclerenchyma fibers showing slightly soluble spheroidal stamens starch starch grains stem stomata stone cells surface tannin taste thick tissue tracheae tracheids Transverse section tree trichomes Used.—The dried usually volatile oil walls wood xylem yellow yellowish yellowish-brown zone