References
For Pilosocereus
Benson, L. 1982. The cacti of the United States and Canada. Stanford Univ. Press, Stanford, California. Google Scholar
Calvente, A., E.M. Moraes, P. Lavor, I.A.S. Bonatelli, P. Nacaguma, L.M. Versieux, N.P. Taylor, and D.C. Zappi. 2017. Phylogenetic analyses of Pilosocereus (Cactaceae) inferred from plastid and nuclear sequences. Bot. J. Linn. Soc. 183: 25-38. Google Scholar
Franck, A.R., D. Barrios, K.C.St.E. Campbell, J. Lange, B. Peguero, E. Santiago-ValentÃn, Z. Rigerszki, J. Haakonsson, G.D. Gann, W. Cinea, N.M.M. Howe, J. St. John, J.S. Moreno, and C.A. Clark. 2019. Revision of Pilosocereus (Cactaceae) in the Caribbean and northern Andean region. Phytotaxa 411(3): 129-182. Google Scholar
Parfitt, B.D., and A.C. Gibson. 2003d. Pilosocereus. In Flora of North America Editorial Committee. 2003b. Flora of North America north of Mexico. Volume 4, Magnoliophyta: Caryophyllidae, part 1. Oxford Univ. Press, New York, NY. 559 pp. Google Scholar