Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 751 No. 2: 15 Apr. 2026
Type: Article
Published: 2026-04-15
DOI: 10.11646/phytotaxa.751.2.8
Page range: 176-184
Abstract views: 0
PDF downloaded: 0

Two new species of Anthurium Schott (Araceae) from Southeastern Brazil

Universidade Federal do Rio de Janeiro, Programa de Pós-Graduação em Ciências Biológicas (Botânica), Museu Nacional, Horto Botânico – Quinta da Boa Vista s.n., 20940-040, São Cristóvão, Rio de Janeiro, RJ, Brazil
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, 22460-030, Rio de Janeiro, RJ, Brazil
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Escola Nacional de Botânica Tropical, Rua Pacheco Leão, 2040, 22460-036, Rio de Janeiro, RJ, Brazil
Departamento de Botânica, Instituto de Biologia (IB), Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, 21941-909, Rio de Janeiro, RJ, Brazil
aroids section Urospadix Atlantic Forest taxonomy Southeastern Brazil Monocots

Abstract

The study presents two new species described from the northern region of the state of Rio de Janeiro: Anthurium bonetiense and Anthurium marquetianum. Both occur in still poorly studied areas and, to date, are endemic to their respective localities. Anthurium bonetiense is found at Morro do Bonet, in the municipality of Petrópolis, and Anthurium marquetianum occurs in the municipalities of Macaé and Santa Maria Madalena. The recognition of these species highlights the knowledge gap regarding Araceae diversity in the northern region of the state of Rio de Janeiro. Although studies published over the last decades have emphasized the floristic richness of the region, they also point to its still under-sampled diversity and reinforce the need for further floristic surveys and conservation actions at both regional and national levels. The new species were recognized and circumscribed based on the identification of diagnostic morphological characters that distinguish them from other species of the genus, through specialized literature review, analysis of herbarium specimens, observation of cultivated plants, and field collections. Descriptions and comparisons with closely related species, diagnoses, illustrations, and comments on geographic distribution, ecology, phenology, and conservation status are provided.

References

  1. Bachman, S., Moat, J., Hill, A.V., de la Torre, J. & Scott, B. (2011) Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. ZooKeys 150: 117–126. https://doi.org/10.3897/zookeys.150.2109
  2. Boyce, P., Croat, T. & Hay, A. (2025 onwards) The Überlist of Araceae: Totals for Published and Estimated Number of Species in Aroid Genera. https://doi.org/10.13140/RG.2.2.24068.64646
  3. Carlsen, M.M. & Croat, T.B. (2019) An analysis of the sectional classification of Anthurium (Araceae): comparing infrageneric groupings and their diagnostic morphology with a molecular phylogeny of the genus. Annals of the Missouri Botanical Garden 104: 69−82. https://doi.org/10.3417/2018215
  4. Coelho, M.A.N. (2019) Anthurium theofiloanum, uma nova espécie de Araceae para o sudeste do Brasil. Pesquisas, Botânica 73: 39−45.
  5. Coelho, M.A.N. & Mayo, S.J. (2000) Anthurium maricense Nadruz & Mayo – a new species of Anthurium Schott (Araceae: tribe Anthurieae) for Brazil. Aroideana 23: 82–87.
  6. Coelho, M.A.N. & Valadares, R.T. (2019) Three new species of Anthurium (Araceae) from the Atlantic forest of Rio de Janeiro, Minas Gerais, and Espírito Santo, Brazil. Novon: A Journal for Botanical Nomenclature 27: 22−32. https://doi.org/10.3417/2019267
  7. Croat, T.B. (1985) Collecting and preparing specimens of Araceae. Annals of Missouri Botanical Garden 72: 252–258. https://doi.org/10.2307/2399178
  8. Croat, T.B. & Bunting, G.S. (1979) Standardization of Anthurium descriptions. Aroideana 2: 15−25. [https://www.aroid.org/gallery/croat/0020102.pdf]
  9. Croat, T.B. & Sheffer, R.D. (1983) The Sectional Groupings of Anthurium (Araceae). Aroideana 6: 85−123. [https://www.aroid.org/gallery/croat/0060308.pdf]
  10. Dutra Junior, D.L.S., Barros, A.A.M. & Coelho, M.A.N. (2024) Anthurium Schott (Araceae) da Serra da Tiririca, Niterói e Maricá, Estado do Rio de Janeiro, Brasil. Hoehnea 51: e1062023. https://doi.org/10.1590/2236-8906e1062023
  11. Ellis, B., Daly, D.C., Hickey, L.J., Johnson, K.R., Mitchell, J.D., Wilf, P. & Wing, S.L. (2009) Manual of leaf architecture. The New York Botanical Garden Press, Nova Iorque, Estados Unidos, pp. 22–41. [https://hdl.handle.net/10088/93918]
  12. Engler, H.G.A. (1878) Araceae. In: Martius, C.G.P. von (Ed.) Flora brasiliensis, 3. Tipografia Regia, München, pp. 25–224, tabs 2–52.
  13. Engler, H.G.A. (1898) Revision der Gatting Anthurium Schott. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 25: 352–476.
  14. Filgueiras, T.S., Nogueira, P.E., Brochado, A.L. & Guala, G.F. (1994) Caminhamento: um método expedito para levantamentos florísticos qualitativos. Cadernos de Geociências 1994: 39−43.
  15. Flora e Funga do Brasil (2026) Jardim Botânico do Rio de Janeiro. Rio de Janeiro. Available from: [http://floradobrasil.jbrj.gov.br] (accessed April 2026)
  16. Gonçalves, E.G. & Lorenzi, H. (2011) Morfologia Vegetal: Organografia e dicionário ilustrado de morfologia das plantas vasculares. Plantarum, São Paulo, Brasil.
  17. IBGE (2012) Manual técnico da vegetação brasileira: sistema fitogeográfico, inventário das formações florestais e campestres, técnicas e manejo de coleções botânicas, procedimentos para mapeamentos. 2 ed. Coordenação de Recursos Naturais e Estudos Ambientais, Rio de Janeiro, Brasil, 276 pp.
  18. IUCN (2023) The IUCN Red List of Threatened Species. Version 2023-1.2023. Available from: https://www.iucnredlist.org (accessed 29 February 2024)
  19. Koch, C. (1855) Aroideae novae et criticae auctore C. Koch. Index seminum in Horto Botanico Berolinensi... collectorum. Typis C. Feisteri, Berolini. [https://www.biodiversitylibrary.org/page/44917747]
  20. Koch, C. (1857) Neue Arouspflanzen oder Aroideen. Berliner Allgemeine Gartenzeitung 25: 189–192.
  21. Schott, H.W. (1829) Für Liebhaber der Botanick. Wiener Zeitschr: Kunst, Literatur, Theater und Mode 3: 828. [https://anno.onb.ac.at/cgi-content/anno?aid=wzz&datum=18290820&seite=8&zoom=33]
  22. Schott, H.W. (1860) Prodromus systematis Aroidearum. Vindobonae, Vienna, 491 pp. https://doi.org/10.5962/bhl.title.68
  23. Schott, H.W. (1862) Neue Brasilische Aroideen. Bonplandia. Zeitschriftfür die gesammte Botanik 10: 5–6. [https://www.biodiversitylibrary.org/page/28138478]
  24. Silva, T.F. (2024) Anthurium seção Urospadix (Araceae) no estado do Rio de Janeiro, Brasil: espécies de lâminas foliares com base cordada. Master’s Thesis, Universidade Federal do Rio de Janeiro (Museu Nacional), Rio de Janeiro.
  25. Temponi, L.G. (2006) Sistemática do Anthurium sect. Urospadix (Araceae). Ph.D. Thesis, Instituto de Biociências da Universidade de São Paulo, Departamento de Botânica, Universidade de São Paulo, São Paulo.
  26. Temponi, L.G. & Coelho, M.A.N. (2011) Two new species of Anthurium sect. Urospadix (Araceae) from Brazil. Rodriguésia 62: 315–320. https://doi.org/10.1590/2175-7860201162208
  27. Thiers, B. (1997) Index Herbariorum. New York Botanical Garden, Estados Unidos. Available from: https://sweetgum.nybg.org/science/ih/ (accessed 25 April 2025)
  28. Valadares, R.T. & Coelho, M.A.N. (2017) Anthurium idimae—a new species of Araceae from Southeastern Brazil. Phytotaxa 316: 74–77. https://doi.org/10.11646/phytotaxa.316.1.7

How to Cite

Silva, T.F.D., Coelho, M.A.N., Mattos, J.R.D. & Lopes, R.C. (2026) Two new species of Anthurium Schott (Araceae) from Southeastern Brazil. Phytotaxa 751 (2): 176–184. https://doi.org/10.11646/phytotaxa.751.2.8