Monday 1 December 2014

IMPORTANT TABLE OF PHARMACOGNOSY

Calcium oxalate crystals shape and examples of sources:

Type of Calcium oxalate crystals
Examples
Prism/Single crystals
Quillaia bark, liquorice, quassia wood, hyocyamus, clove stalk, senna, cascara, rauwolfia, kurchi, coca
Cluster Crystals
Senna leaf, Stramonium leaf, rhubarb, clove, wild cherry bark
Rosette crystals
Rhubarb, umbelliferous fruits(coriander, fennel, anise, celery)
Acicular Crystals/ Raphides
Single Acicular – Gentian root, cinnamon bark, gentian
Bundle of acicular – squill , ipecac root
Micro Crystals/ Crystals sand/ Micro sphenoid
Cinchona, belladonna leaf
Absent
Digitalis and aloe


Different shape of  calcium oxalate crystals
Actual crystals under microscope