Metcalfe and Chalk ( 1950 ) compiled anatomical data available at that time.
Shimomura et al. ( 1967 ) differentiated betweenC. sativaandC. indicabased on
leaf and bract anatomy with emphasis on trichomes. Anderson ( 1974 ) studied wood
anatomy ofCannabisand found significant anatomical differences betweenC.
sativaandC. indica(Fig.5.4).
In transection, the leaf ofC. sativashows thin lamina and major veins, which are
depressed above and prominently raised beneath (Fig.5.5a, b). Each of the upper
and lower epidermis is unilayered. In surface view, the epidermal cells show
Fig. 5.4 Leaf micro-morphology ofC. sativa[C and F- LM; all others SEM].aAdaxial leaf
surface;b,cAdaxial leaf epidermis;d,eAbaxial leaf surface;f,gAbaxial leaf epidermis showing
stomata.Cccystolith trichome,Cucuticle striations,Gt-2capitate sessile glandular trichome,Gt-3
bulbous glandular trichome,Ngtnon-glandular trichome,Ststomata
5 Morpho-Anatomy of Marijuana (Cannabis sativaL.) 131