Pharmacognostical study of Tobacco

1. B.Pharm 4th year

2.  TOBACCO HERB
 DRIED TO
DRIED TOBACCO

3. SYNONYMS-TOBACCO
BIOLOGICAL SOURCE-
 This consistof dried leaves of Nicotiana
Tobaccum belonging to family Solanaceae.

4. Cultivation and collection -
The cultivation of tobacco usually
takes place annually. The tobacco is
germinated in cold frames or hotbeds and
then transplanted to the field until it
matures. It is grown in warm climates with
rich, well-drained soil. About 4.2 million
hectares of tobacco were under cultivation
worldwide in 2000, yielding over seven
million tonnes of tobacco.

5. Colour – Green or slightly brown
Odour – Characteristics
Taste – Bitter
Size – 60-80 cm
Shape- Ovate

7.  UPPER EPIDERMIS
 STOMATA
 SPONGY MESOPHYLL
 PALISADE MESOPHYLL
VASCULAR BUNDLES
 TRICHOMES
 LOWER EPIDERMIS
MICROSCOPIC CHARACTERSTICS:-