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ORIGINAL ARTICLE
Year : 2012  |  Volume : 31  |  Issue : 4  |  Page : 190-193

Botanical pharmacognosy of stem of Gmelina asiatica Linn


Research and Development Center, The Himalaya Drug Company, Bangalore, India

Correspondence Address:
R Kannan
The Himalaya Drug Company, Makali, Tumkur Road, Bangalore
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0257-7941.107347

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Gmelina asiatica Linn (G. parvifolia Roxb.) is a large shrub or a small tree. Roots and aerial parts are used in Ayurvedic medicine and also have ethno-medical uses. Root is reported as adulterant to G. arborea roxb roots. Pharmacognostical characters of root were reported. Owing to the shortage of genuine drug and ever-increasing demands in market, it becomes necessary to search an alternative with equal efficacy without compromising the therapeutic value. Nowadays, it becomes a common practice of using stem. In case of roots phytochemical and pharmacological analysis of stem was reported. However, there is no report on the pharmacognostical characters of stem and to differentiate it from roots. The present report describes the botanical pharmacognostical characters of stem and a note to differentiate it from root. Hollow pith, faint annual rings in cut ends, alternatively arranged macrosclereids and bundle cap fibers, and presence of abundant starch grains and calcium oxalates in pith and in ray cells are the diagnostic microscopic characters of stem. Stem pieces can be differentiated from roots by absence of tylosis.


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