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ANIMAL DRUGS Titles zoological origins and families of those official in the U S P
MORPHOLOGICAL CLASSIFICATION OF CRUDE DRUGS
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acid acid-insoluble ash acrid alcohol aleurone alkaloids aromatic Average bark bast fibers bitter Botanical branches brown calcium oxalate calyx cambium capsule cells containing cent color consists cork Cork cambium corolla cortex crystals cultivated diameter dose drug drupe elongated endodermis endosperm epicarp epidermal cells epidermis fixed oil flowers foreign organic matter fracture fragments fruit glandular hairs green inner layer leaf leaves length less lignified longitudinally medullary rays monoclinic mucilage non-glandular hairs numerous occurs odor outer ovary ovate parenchyma parenchyma cells pericarp pericycle petiolate phloem pistil pith Plant.—A plants pores 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 soluble solution species 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 xylem yellow yellowish yellowish-brown yields zone