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Morpho-Anatomy of Marijuana (Cannabis sativa L.)

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Cannabis sativa L. - Botany and Biotechnology

Abstract

Cannabis sativa is a complex species with highly variable morphological features. The present chapter provides detailed descriptions of morphological and anatomical characters of various parts of C. sativa plant and illustrated with bright-field and scanning electron micrographs. Male and female flowers occur in separate plants. Three types of glandular trichomes namely, glandular stalked, glandular sessile and bulbous glandular trichomes are found. Of these, glandular stalked trichomes are restricted to the floral bracts in pistillate plants and anthers in staminate plants. The other two types of glandular trichomes are found in various parts including bracts, leaves, stems and petioles. Two types of non-glandular trichomes namely, cystolith trichomes and slender covering trichomes, are present. Cystolith trichomes are primarily found on the adaxial leaf surface while the covering trichomes are commonly present on the abaxial leaf surface, stems, petioles and tepals. Cystolith crystals of calcium carbonate and cluster crystals of calcium oxalate are observed in the leaves. Anatomical features of various parts of the plant are described and illustrated.

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Acknowledgements

This work was supported in part by the National Institute on Drug Abuse, National Institute of Health, Department of Health and Human Services, Contract No. N01DA-10-7773.

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Authors and Affiliations

  1. National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, 38677, USA

    Vijayasankar Raman, Hemant Lata, Suman Chandra, Ikhlas A. Khan & Mahmoud A. ElSohly

  2. Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, MS, 38677, USA

    Ikhlas A. Khan

  3. Department of Pharmaceutics, School of Pharmacy, University of Mississippi, University, MS, 38677, USA

    Mahmoud A. ElSohly

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  1. Vijayasankar Raman
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  2. Hemant Lata
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  3. Suman Chandra
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Correspondence to Vijayasankar Raman .

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Editors and Affiliations

  1. University of Mississippi , Oxford, Mississippi, USA

    Suman Chandra

  2. School of Pharmacy, University of Mississippi School of Pharmacy, Oxford, Mississippi, USA

    Hemant Lata

  3. School of Pharmacy, University of Mississippi School of Pharmacy, Oxford, Mississippi, USA

    Mahmoud A. ElSohly

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Raman, V., Lata, H., Chandra, S., Khan, I.A., ElSohly, M.A. (2017). Morpho-Anatomy of Marijuana (Cannabis sativa L.). In: Chandra, S., Lata, H., ElSohly, M. (eds) Cannabis sativa L. - Botany and Biotechnology. Springer, Cham. https://doi.org/10.1007/978-3-319-54564-6_5

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