Laticiferous ducts and phenolic idioblasts are present in the cortex, phloem and pith.
Leopoldo C. Baratto, Sandra V. A. Hohlemwerger, Maria Lenise S. Guedes, Márcia R.Duarte, Cid A. M. Santos 2010, 'Himatanthus lancifolius (Müll. Arg.) Woodson, Apocynaceae: estudo farmacobotânicode uma planta medicinal da Farmacopeia brasileira 1ª edição Himatanthus lancifolius(Müll. Arg.) Woodson, Apocynaceae: morpho-anatomical study of a medicinal plant describedin the Brazilian Pharmacopoeia 1st edition', Revista Brasileira de Farmacognosiahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2010000500001. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The secretions of the laticiferous glands are lipidic.
Fabiano M. Martins, Jamile F. Lima, Ana Angélica S. Mascarenhas, Thayane P. Macedo 2012, 'Secretory structures of Ipomoea asarifolia: anatomy and histochemistry', Revista Brasileira de Farmacognosiahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2012000100003. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Laticiferous ducts, amyloplasts and phenolic idioblasts are found in ground parenchyma of the midrib and petiole.
Leopoldo C. Baratto, Sandra V. A. Hohlemwerger, Maria Lenise S. Guedes, Márcia R.Duarte, Cid A. M. Santos 2010, 'Himatanthus lancifolius (Müll. Arg.) Woodson, Apocynaceae: estudo farmacobotânicode uma planta medicinal da Farmacopeia brasileira 1ª edição Himatanthus lancifolius(Müll. Arg.) Woodson, Apocynaceae: morpho-anatomical study of a medicinal plant describedin the Brazilian Pharmacopoeia 1st edition', Revista Brasileira de Farmacognosiahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2010000500001. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The laticiferous glands are articulated, not anastomosed, and are composed of large diameter cells with thin cell walls.
Fabiano M. Martins, Jamile F. Lima, Ana Angélica S. Mascarenhas, Thayane P. Macedo 2012, 'Secretory structures of Ipomoea asarifolia: anatomy and histochemistry', Revista Brasileira de Farmacognosiahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2012000100003. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)