A Textbook of Pharmacognosy |
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Contents
THE SCOPE OF PHARMACOGNOSY | 3 |
HISTORICAL BACKGROUND AND THE DRUG TRADE | 5 |
THE CLASSIFICATION OF DRUGS FOR STUDY THE LITERATURE OF PHARMACOGNOSY | 14 |
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acetate alcohol alkaloids aloes anthraquinone aromatic bark belladonna bitter bundles calcium oxalate carbon Cassia cells cellulose cent Characters chemical cinchona cinnamon collected colour compounds consists Constituents contains COOH cork cortex crystals cultivated derived diameter Digitalis distillation dried drug drying endodermis endosperm enzymes epidermis esters extract Family fibres fixed oil flavonoids flowers fruits genera glucose glycosides grains groups hairs hydrochloric acid hydrolysis hyoscyamine Indian isolated known layer leaf leaves lignified longitudinal medullary rays methyl Microscopical mixture molecules mucilage obtained occurs odour opium outer parenchyma pericarp pericyclic Pharmacopoeia phenolic phloem plants powder prepared produced protein pulp Rauwolfia resin rhizome rhubarb roots samples saponins seeds senna shows soluble solution species starch stem stomata structure substances sugar sulphuric acid surface tannin taste terpenes testa tissue transverse section trees trichomes usually varieties vessels volatile oil walls wood wool xylem yellow yield