Pharmacognostic Study of the Leaf and Bark of Barleria Prionitis Linn

TLDR: The detective characters of Barleria prionitis Linn, a widely used medicinal plant in the Ayurvedic system in India, are pairs of epidermal cells containing calcium carbonate crystals and granular and needle shaped calcium oxalate crystals.

Abstract: The detective characters of Barleria prionitis Linn., a widely used medicinal plant in the Ayurvedic system in India, are: 1. pairs of epidermal cells containing calcium carbonate crystals; 2. Caryophyllaceous stomata; 3. stomatal index on lower and upper surfaces 23.70 and 0.69 respectively; 4. palisade ratio 8.10; 5. vein islet number per sq. mm 9.26; 6. periderm of stem bark subtended by 5-7 layers of tabular collenchyma; 7. phloem ray of stem heterogeneous type I (Jane 1956) with uniseriate and multiseriate rays, 8-16 and 8-25 cells high respectively, 2-3 cell broad; 8. granular and needle shaped calcium oxalate crystals filling up many cells in almost all tissues of barks; 9. in root bark a yellowish cork and sometimes a new phellogen layer separating the outer and inner cortex; 10. root-wood cells containing a blackish brown content.