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HL Powders of Natural Occurrence
Fossil Organisms Shells and Minerals
16 other sections not shown
acid Adulterants alcohol alkaloid aloes apex aromatic balsam bark belladonna bitter brown bundles calcium oxalate cambium cells cellulose cent chiefly cinchona cloves cluster crystals collected colour consists Constituents contains cork cortex cotyledons crystalline crystals of calcium cultivated dark Description diameter dried drug endodermis endosperm epidermis extract fibres fixed oil flowers fracture fruits glands glandular trichomes glycoside henbane hilum Histology Indian inner insoluble layer leaf leaves lignified Linn longitudinal medullary rays mesophyll midrib mucilage numerous obtained occur odour outer ovoid pale palisade parenchyma pericarp pericyclic phloem pieces pith plants powder present prisms quillaia reddish-brown resembles resin rhizome rhubarb root sclereids sclerenchyma seeds senna soluble solution sometimes Sources species starch starch grains stem stoma stomata substance tannin taste testa thick thickened tissue tracheids transverse section tree trichomes upper usually variety vascular vessels volatile oil walls wide wood xylem yellow yellowish yields