E. W. Sinnott and I. W. Bailey, “Investigations on the Phylogeny of Angiosperms. 3. Nodal Anatomy and the Morphology of Stipules,” American Journal of Botany, Vol. 1, No. 9, 1914, pp. 441-453. doi:10.2307/2435043
 C. W. Gourlay, J. M. I. Hofer and T. H. N. Ellis, “Pea Compound Leaf Architecture Is Regulated by Interactions among the Genes UNIFOLIATA, COCHLETA, AFILA and TENDRIL-LESS,” Plant Cell, Vol. 12, No. 8, 2000, pp. 1279-1294.
 J. L. Yaxley, W. Jablonski and J. B. Reid, “Leaf and Flower Development in Pea (Pisum sativum L.): Mutants cochleata and unifoliata,” Annals of Botany, Vol. 88, No. 2, 2001, pp. 225-234. doi:10.1006/anbo.2001.1448
 S. Kumar, R. K. Mishra, A. Kumar, S. Srivastava and S. Chaudhary, “Regulation of Stipule Development by COCHLEATA and STIPULE-REDUCED Genes in Pea (Pisum sativum),” Planta, Vol. 230, No. 3, 2009, pp. 449-458. doi:10.1007/s00425-009-0952-0
 V. Sharma, A. K. Sinha, S. Chaudhary, A. Priyadarshini, B. N. Tripathi and S. Kumar, “Genetic Analysis of Structure and Function of Stipules in Pea Pisum sativum,” Proceedings of Indian National Science Academy, Vol. 78, No. 1, 2012, pp. 9-34.
 V. Sharma, B. N. Tripathi and S. Kumar, “Organ-Wise Homologies of Stipule, Leaf and Inflorescence between Pisum sativum Genetic Variants, Delonix regia and Caesalpinia bonduc Indicate Parallel Evolution of Morphogenetic Regulation,” Plant Systematics and Evolution, Vol. 298, No. 6, 2012, pp. 1167-1175. doi:10.1007/s00606-012-0612-x
 A. Kumar, V. Sharma, M. Khan, B. N. Tripathi and S. Kumar, “Pisum sativum Wild-Type and Mutant Stipules and Those Induced by an Auxin Transport Inhibitor Demonstrate the Entire Diversity of Laminated Stipules Observed in Angiosperms,” Protoplasma, 2012, (Published online). doi:10.1007/s00709-012-0397-3
 D. B. Wake, M. H. Wake and C. D. Specht, “Homoplasy: From Detecting Pattern to Determining Process and Mechanism of Evolution,” Science, Vol. 331, No. 6020, 2011, pp. 1032-1035. doi:10.1126/science.1188545
 J. Macfadyen, “The Flora of Jamaica; a Description of the Plants of That Island, Arranged According to the Natural Orders,” Longman, Orme, Brown, Green and Longmans, London, Vol. 1, 1837, p. 351.
 M. F. Wojciechouski, M. Lawin and M. J. Sanderson, “A Phylogeny of Legumes (Leguminosae) Based on Analysis of the Plastid matK Gene Resolve Many Well Supported Subclades with in the Family,” American Journal of Botany, Vol. 91, No. 11, pp. 1846-1862. doi:10.3732/ajb.91.11.1846