Morphological and anatomical investigations were carried out on two species of Jatropha: J. curcas and J. tanjorensis. These studies were carried out on the leaf and stem of these plants using the light microscope fitted with a Nikkon digital camera. Trichomes were observed in the leaf section of J. tanjorensis whereas these were lacking in J. curcas. The lower palisade parenchyma of J. tanjorensis consists of fewer layers but is thicker compared to that of J. curcas, which possessed more but thinner palisade layer.
Idu, M.; Timothy, O.; Onyibe, H. I.; and Comor, A. O.
"Comparative Morphological and Anatomical Studies on the Leaf and Stem of some Medicinal Plants: Jatropha curcas L. and Jatropha tanjorensis J.L. Ellis and Saroja (Euphorbiaceae),"
10, Article 4.
Available at: http://opensiuc.lib.siu.edu/ebl/vol2009/iss10/4