I. M.  Andrade, Nascimento, J. D. 'A. O., Sousa, M. V., Santos, J. O., and Mayo, S. J., ?Morphometrics of wild cashew in coastal Piauí?, Feddes Repertorium, pp. 1-28, 2019.

I. M.  Andrade, ?Araceae do PIAUÍ?, Iheringia, vol. vvv, no. vvvv, p. vv, 2017.

K. N. C.  Castro, Lima, D. F., Wolschick, D., Andrade, I. M., Santos, R. C., Santos, F. J. S., Veras, L. M. C., and Costa-Júnior, L. M., ?In vitro effects of Pilocarpus microphyllus extracts and pilocarpine hydrochloride on Rhipicephalus (Boophilus) microplus?, Brazilian Journal of Veterinary Parasitology, vol. 25, no. 2, pp. 248-253, 2016.

K. N. C.  Castro, Wolschick, D., Leite, R. R. S., Andrade, I. M., Magalhães, J. A., and Mayo, S. J., ?Ethnobotanical and ethnoveterinary study of medicinal plants used in the municipality of Bom Princípio do Piauí, Piauí, Brazil?, Journal of Medicinal Plants Research, vol. 10, no. 23, pp. 318-330, 2016.

I. M.  Andrade, Silva, M. F. S., Ribeiro, T. A., and Mayo, S. J., ?Dracontium nivosum (Lem.) G.H.Zhu (Araceae): range extension from Amazonia to a brejo forest refugium in Northeast Brazil confirmed?, Check List, vol. 12(3), no. 1908, pp. 1-7, 2016.

F. C. V.  Serra, Lima, P. B., and Almeida_Jr, E. B., ?Species richness in restinga vegetation on the eastern Maranhão State, Northeastern Brazil?, Acta Amazonica, vol. 46, no. 3, pp. 271-280, 2016.

F. S.  Santos-Filho, Mesquita, T. K. S., Almeida_Jr, E. B., and Zickel, C. S., ?A flora de Cajueiro da Praia: uma área de tabuleiros do litoral do Piauí, Brasil?, Revista Equador (UFPI), vol. 5, no. 2, pp. 21-35, 2016.

F. S.  Santos-Filho, Almeida_Jr, E. B., Lima, P. B., and Soares, C. J. R. S., ?Checklist of the flora of the restingas of Piauí state, Northeast Brazil?, Check List, vol. 11(2), no. 1598, p. 10, 2015.

F. S.  Santos-Filho, Almeida_Jr, E. B., and Zickel, C. S., ?Do edaphic aspects alter vegetation structures in the Brazilian restinga??, Acta Botanica Brasilica, vol. 27, no. 3, pp. 613-623, 2013.

F. S.  Santos-Filho, Almeida_Jr, E. B., Bezerra, L. F. M., Lima, L. F., and Zickel, C. S., ?Magnoliophyta, restinga vegetation, state of Ceará, Brazil?, Check List, vol. 7, no. 4, pp. 478-485, 2011.

F. S.  Santos-Filho, Almeida_Jr, E. B., Soares, C. J. R. S., and Zickel, C. S., ?Fisionomias das restingas do Delta do Parnaíba, Nordeste, Brasil?, Revista Brasileira de Geografia Física, vol. 3, pp. 218-227, 2010.

E. K. M. D.  Ribeiro, Rêgo, M. M. C., and Machado, I. C. S., ?Cargas polínicas de abelhas polinizadoras de Byrsonima chrysophylla Kunth. (Malpighiaceae): fidelidade e fontes alternativas de recursos florais?, Acta Botanica Brasilica, vol. 22, no. 1, pp. 165-171, 2008.

A. R. R.  Castro and Almeida_Jr, E. B., ?Expansion of the geographic distribution of Faramea nitida Benth. in the restinga of Maranhão state, northeastern Brazil?, Check List, vol. 12(1), no. 1831, pp. 1-3, 2016.

J. A. L.  Miranda, Rocha, J. A., Araújo, K. M., Quelemes, P. V., Mayo, S. J., and Andrade, I. M., ?Atividade antibacteriana de extratos de folhas de Montrichardia linifera (Arruda) Schott (Araceae)?, Revista Brasileira de Plantas Medicinais, vol. 17, no. 4, pp. 1142-1149, 2015.

F. M. S.  Silva, Mayo, S. J., and Andrade, I. M., ?Ocorrência de Crenea maritima (Lythraceae) para o Delta do Parnaíba, Brasil?, Rodriguésia, vol. 66, no. 3, pp. 931-937, 2015.

J. D. A.  Silva, Nascimento, M. G. P., Grazina, L. G., Castro, K. N. C., Mayo, S. J., and Andrade, I. M., ?Ethnobotanical survey of medicinal plants used by the community of Sobradinho, Luís Correia, Piauí, Brazil?, Journal of Medicinal Plants Research, vol. 9, no. 32, pp. 872-883, 2015.

M.  Vieira, Mayo, S. J., and Andrade, I. M., ?Geometric morphometrics of leaves of Anacardium microcarpum Ducke and A. occidentale L. (Anacardiaceae) from the coastal region of Piauí, Brazil?, Brazilian Journal of Botany , vol. 37, no. 3, pp. 315-327, 2014.

I. M.  Andrade, Mayo, S. J., Silva, F. M. S., ,, Matias, L. Q., and Ribeiro, T. A., ?The Araceae in Ceará, Brazil: humid forest plants in a semi-arid region?, Rodriguesia, vol. 64, no. 3, pp. 1-33, 2013.

P. C.  da Silva, ?Observations on Habitat, Activity, Foraging, and Diet in the Amazon Treeboa, Corallus hortulanus, on Batatas Island, Parnaíba Delta, Piauí, Brazil?, IRCF Reptiles & Amphibians, vol. 17, p. 221, 2010.

I. M.  Andrade, Mayo, S. J., van den Berg, C., Fay, M. F., Chester, M., Lexer, C., and Kirkup, D., ?Genetic variation in natural populations of Anthurium sinuatum and A. pentaphyllum var. pentaphyllum (Araceae) from north-east Brazil using AFLP molecular markers?, Journal of the Linnean Society, vol. 159, p. 155, 2009.

I. M.  Andrade, Mayo, S. J., van den Berg, C., Fay, M. F., Chester, M., Lexer, C., and Kirkup, D., ?A Preliminary Study of Genetic Variation in Populations of Monstera adansonii var. klotzschiana (Araceae) from North-East Brazil, Estimated with AFLP Molecular Markers?, Annals of Botany, vol. 100, p. 1154, 2007.

F. M. S.  Silva, Andrade, I. M., and Mayo, S. J., ?Geometric morphometrics of leaf blade shape in Montrichardia linifera (Araceae) populations from the Rio Parnaíba Delta, north-east Brazil?, Botanical Journal of the Linnean Society, vol. 170, p. 572, 2012.