Page 295 - Pharmacognosy 2 PG303 (1)
P. 295

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

                  Macro &                                   ➢  Powder:                 ➢  Macro:                   Micro:
                  microscopic                               ▪  Starch granules         ■  The fracture is         ▪  few anomocytic
                  al                                            (simple or comp.) .       granular .                  stomata
                  characters                                ▪  Cells with  bundles     ■  Odor :characteristic    ▪  Parenchymatous
                                                                of Raphides of Ca .
                                                                                                                      cells containing
                                                                                          and faintly smoky.


                                                                Oxalate                ■  Taste :bitter and           spheroidal masses of
                                                                                                                              .
                                                                                                            .
                                                            ▪  Tracheids &                slightly astringent         sinistrin
                                                                tracheidal vessels .   ■  It colors Saliva
                                                            ➢  Taste :bitter ,acrid       yellow.
                                                               taste.                  ➢  Micro:
                                                                                       ✓  Pith contain
                                                                                          anomalous structure
                                                                                          amphivasal V.B (star  ▪  Mucilage cells
                                                                                          spot)                       containing acicular
                                                                                                                      crystals of Ca  .
                                                                                                                      Oxalate
                                                                                                                  ▪  Mesophyll
                                                                                                                      consisting of thin-
                                                                                                                      walled
                                                                                                                      parenchymatous
                                                                                                                      cells ,some of which
                                                                                       ➢  Key element:                contain bundles of
                                                                                       ✓  Giant Ca .Oxalate           large raphides of
                                                                                          clusters                    calcium oxalate
                                                                                       ✓  Reticulate xylem            embedded  in
                                                                                          vessel                      mucilage  which
                                                                                                                      stains  pink  with
                                                                                                                      corallin  soda.







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