Page 41 - final Practical handout PG 303-Cogno-2- 2024-2025
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Clinical Pharm D    Level 2  Pharmacognosy-2 (PG 303)

 Item               Jalap Root ‫درنة الجلبه‬

Macroscopical
  characters

Microscopical        ✓ Known as Mexican Jalap (Vera Cruz).
  characters         ✓ The jalap root has a spindle shape.
                     ✓ Outer surface has lenticels, furrows and wrinkles.
                     ✓ Smoky odor.
                     ✓ Bitter acrid (due to resin), sweety (due to sugars) taste.

                  The T.S. shows the following tissues:
                     ✓ Cork.
                     ✓ Phloem.
                     ✓ Secondary cambium.
                     ✓ Xylem (vessels and fibrous tracheids).
                     ✓ Tertiary cambium (abnormal).
                     ✓ Secretion cells.
                     ✓ Starch and Calcium oxalate.

T.S. in jalap root  Oleo-resin cell with attached starch granules of jalap

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