Page 233 - Pharmacognosy 2 PG303
P. 233

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

              fluorescence within 24 hours.

                    Tests for Purity
                     Powdered senega contains no, or very few, starch granules, no Ca.Ox. crystals
              (other roots); no inulin (false senega); and only very few fragments of bast fibers
              (senega stern).















































                    1- Cork in surface view showing granular 8- Cork in sectional
                      material in some of the cells.                   view.
                    2- Cork from the crown of the root in            9- Sieve tissue in
                      surface view.                                    longitudinal view.
                    3- Part of the cork and phelloderm in            10- Xylem parenchyma

                    sectional view, with globules of fixed oil  in longitudinal view.
                      (f.o) in the cells of the phelloderm.
                      4- Parenchyma in longitudinal view.            11- Epidermis of the
                                                                     scale leaves in
                                                                       surface view.
                    5- Fragment of the epidermis of the scale  12- Parenchyma in
                    leaves in surface view, with an                    transverse section
                      attached trichome.




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