Open Access Open Access  Restricted Access Subscription or Fee Access


Justicia paracambi, a new Brazilian species of Acanthaceae

Denise Monte Braz


Justicia paracambi is described as a new, so far strictly endemic species to the state of Rio de Janeiro, which occurs in an area of natural forest in the Parque Natural Municipal do Curió, in the city of Paracambi. It differs from other Justicia L. species by the presence of dense glandular and non-glandular trichomes on the rachis, on the bracts and bracteoles and on the calyx, the terminal, lax panicle of spikes with decussate branches and flowers, the calyx 5-lobed, the white to greenish corolla and by the anthers with the lower thecae with a remarkable basal appendage. According to its restricted area of occurrence and the approximate number of individuals, it is considered critically endangered. The new species is described and illustrated and comments on its occurrence, phenology, taxonomy and diagnostic characters are provided.


Atlantic forest; Rio de Janeiro State; endemism; morphology; taxonomy; Eudicots

Full Text:

PDF/A (2.86 MB)


Baumgratz, J.F.A., Coelho, M.A.N., Peixoto, A.L., Mynssen, C.M., Bediaga, B.E.H., Costa, D.P., Dalcin, E., Guimarães, E.F., Martinell, G., Silva, D.S.P., Sylvestre, L.S., Freitas, M.F., Morim, M.P. & Forzza, R.C. (2013) Catálogo das Espécies de Plantas Vasculares e Briófitas do Estado do Rio de Janeiro. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro. Available form: (accessed 12 December 2014)

Bentham, G. & Hooker, J.D. (1876) Genera Plantarum ad exemplaria imprimis in herbariis Kewensibus 2. Reeve & Co., Williams & Norgate, London, 1279 pp.

Bremekamp, C.E.B. (1965) Delimitation and subdivision of the Acanthaceae. Bulletin of the Botanical Survey of India 7: 21–30.

Côrtes, A.L.A. & Rapini, A. (2011) Four new species of Justicia (Acanthaceae) from the Caatinga biome of Bahia, Brazil. Kew Bulletin 66 (3): 453–461.

Cysneiros, V.C., Oliveira Junior, J.M., Gaui, T.D. & Braz, D.M. (2015) Diversity, community structure and conservation status of an Atlantic Forest fragment in Rio de Janeiro State, Brazil. Biota Neotropica 15 (2): 1–15.

Ezcurra, C. (2002) El género Justicia (Acanthaceae) en Sudamérica Austral. Annals of the Missouri Botanical Garden 89: 225–280.

Fraga, M.E., Braz, D.M., Rocha, J.F., Pereira, M.G. & Figueiredo, D.V. (2012) Interação microrganismo, solo e flora como condutores de biodiversidade na Mata Atlântica. Acta botanica brasilica 26: 857–865.

Graham, V.A.W. (1988) Delimitation and infra-generic classification of Justicia (Acanthaceae). Kew Bulletin 43: 551–624.

IUCN (2001) IUCN Red List Categories: version 3.1. Prepared by the IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, UK. Available from: (accessed 8 February 2015)

Linnaeus, C. (1753) Species Plantarum 1. Impensis Laurentii Salvii, Stockholm, 560 pp.

McDade, L.A., Daniel, T.F. & Kiel, C.A. (2008) Toward a comprehensive understanding of phylogenetic relationships among lineages of Acanthaceae s.l. (Lamiales). American Journal of Botany 95 (9): 1136–1152.

Profice, S.R., Kameyama, C., Côrtes, A.L.A., Braz, D.M., Indriunas, A., Vilar, T., Pessoa, C., Ezcurra, C. & Wasshausen, D. (2015) Acanthaceae in Lista de Espécies da Flora do Brasil. Jardim Botânico do Rio de Janeiro. Available from: (accessed 30 January 2015)

Scotland, R.W. & Vollensen, K. (2000) Classification of Acanthaceae. Kew Bulletin 55: 513–589.

Stehmann, J.R., Forzza, R.C., Salino, A., Sobral, M., Costa, D.P.E. & Kamino, L.H.Y. (Eds.) (2009) Plantas da Floresta Atlântica. Instituto de Pesquisa Jardim Botânico do Rio de Janeiro, Rio de Janeiro, 516 pp.

Tabarelli, M., Pinto, L.P., Silva, J.M.C., Hirota, M.M. & Bedê, L.C. (2005) Desafios e oportunidades para a conservação da biodiversidade na Mata Atlântica brasileira. Megadiversidade 1: 132–138.

Wasshausen, D.C. & Wood, J.R.I. (2003) Notes on the genus Justicia in Bolivia. Kew Bulletin 58: 769–831.


  • There are currently no refbacks.

ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand