Page 148 - Pharmacognosy 2 PG303
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Pharmacognosy-2 (PG303) Level 2 Clinical Pharmacy-Pharm D
Powder
1- Upper epidermis: 1- Lower epidermis: 1- Upper epidermis: diacytic 1- Upper epidermis: anisocytic
no stomata. diacytic stomata. stomata, a capitate glandular stomata. 1- Covering trichomes (Shaggy
2- Lower epidermis: 2- Glandular trichomes: trichome 2- Calcium oxalate crystals. and cystolith)
anomocytic stomata. Labiaceous hair, 2- Unicellular trichomes. 3- Sclereids of the testa. 2- anomocytic stomata.
3-Trichome: unicellular, capitate. 3- Lower epidermis:
conical with lignified wall. 3-Uniseriate multicellular Diacytic stomata, red
4- Sclereids of mesocarp non.gl. labiaceous hair, Bent
trichome.
Active Alkaloids: Lobeline (major) Volatile oil: containing Volatile oil: mainly thymol Alkaloids: are mostly Brown resin containing:
constituents menthol (50%) Catechol tannins Hyoscyamine, Hyoscine, Tetrahydrocannabinol (THC)
Catechol tannins Atropine. main principle.
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