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Issue: Vol. 772 No. 3: 2 Sept. 2026
Type: Article
Published: 2026-09-02
DOI: 10.11646/phytotaxa.772.3.8
Page range: 285-292
Abstract views: 20
PDF downloaded: 1

Hidden among rocks: Anthurium occultum (Araceae), a short-pedunculate species from the campos rupestres of eastern Minas Gerais, Brazil

Universidade Federal do Espírito Santo - Herbário VIES - Av. Fernando Ferrari; 514 - Goiabeiras - CEP 29075-910 - Vitória; Espírito Santo; Brazil
Instituto Nacional da Mata Atlântica - Herbário MBML - Av. José Ruschi; 4 - Centro - CEP 29.650-000 - Santa Teresa; Espírito Santo; Brazil
Monocots Alismatales Atlantic Forest darkspot Serra do Padre Ângelo taxonomy

Abstract

A new rupicolous species of Anthurium (Araceae) is described from the campos rupestres of eastern Minas Gerais, Brazil. Anthurium occultum is restricted to quartzitic rocky outcrops of the Serra do Padre Ângelo and adjacent sectors, where it occurs in small and localized populations. The species is characterized by a combination of morphological features, including a peduncle shorter than the petiole and recurved during fruiting, matte dark green leaf blades, and a greenish-yellow to greenish-purplish spadix at anthesis. Detailed morphological description, illustrations, and comparisons with the most similar species are provided. Notes on habitat, distribution, phenology, and conservation status are presented, highlighting the vulnerability of this narrowly endemic taxon to ongoing threats affecting the campos rupestres of eastern Minas Gerais.

References

  1. Andrino, C.O., Rocha, L.H. & Gonella, P.M. (2024) A tiny rediscovery in the Land of Giants: a new combination in Giuliettia (Eriocaulaceae, Poales) and other implications of finding Paepalanthus minimus again. Willdenowia 54: 81–93. https://doi.org/10.3372/wi.54.54104
  2. Bachman, S., Moat, J., Hill, A.W., 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
  3. Barroso, G.M. (1957) Araceae novae. Arquivos do Jardim Botânico do Rio de Janeiro 15: 89–112.
  4. Beentje, H. (2016) The Kew plant glossary: an illustrated dictionary of plant terms. Royal Botanic Gardens, Kew, 184 pp.
  5. Bogner, J. & Gonçalves, E.G. (2002) Two new aroids from South America. Willdenowia 32: 323–329. https://doi.org/10.3372/wi.32.32214
  6. Bown, D. (2000) Aroids: plants of the arum family. 2nd edition. Timber Press, Portland, 384 pp.
  7. Cavalcanti, T.B., Facco, M.G., Inglis, P.W., Graham, S.A. & Gonella, P.M. (2022) A new genus of Lythraceae emerges from rocky outcrops of the Atlantic Forest in Brazil. Botanical Journal of the Linnean Society 200 (1): 85–103. https://doi.org/10.1093/botlinnean/boac004
  8. 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 27: 22–32. https://doi.org/10.3417/2019267
  9. Coelho, M.A.N., Magno, A. & Valadares, R.T. (2024) A new Anthurium (Araceae) species with silver leaves from the Atlantic Forest of Bahia, Brazil. Phytotaxa 663: 69–76. https://doi.org/10.11646/phytotaxa.663.2.2
  10. Croat, T.B. (1980) Flowering behavior of the neotropical genus Anthurium (Araceae). American Journal of Botany 67: 888–904. https://doi.org/10.2307/2442430
  11. Croat, T.B. & Bunting, G.S. (1979) Standardization of Anthurium descriptions. Aroideana 2: 15–25.
  12. Fidalgo, O. & Bononi, V.L.R. (1984) Técnicas de coleta, preservação e herborização de material botânico. Instituto de Botânica, São Paulo, 62 pp.
  13. Flora e Funga do Brasil (2026) Jardim Botânico do Rio de Janeiro. Available from: http://floradobrasil.jbrj.gov.br (accessed 10 October 2025)
  14. Goldenberg, R., Gonella, P.M. & Meyer, F.S. (2022) Four new species of Pleroma (Melastomataceae) from campos rupestres and vegetation on granitic inselbergs in eastern Minas Gerais, Brazil. Edinburgh Journal of Botany 79: Article 624 [1–30]. https://doi.org/10.24823/EJB.2022.624
  15. Gonçalves, E.G. (2005) A new species of Anthurium (Araceae) from Espírito Santo State, eastern Brazil. Feddes Repertorium 116: 92–95. https://doi.org/10.1002/fedr.200411061
  16. Gonçalves, E.G. (2011) A new name for a Brazilian species of Anthurium (Araceae). Willdenowia 41: 115–118. https://doi.org/10.3372/wi.41.41114
  17. Gonella, P.M., Frazão, A., Teles, A., Andrino, C.O., Cordeiro, D.P., Couto, D.R., da Silva, G.A., Chaves, F.G., Guimarães, L.R.S., Pinto, L.H.R., Santos, M.T.T., Bartholomay, P.R., Magalhães, R.F., Vicente, R.E., Recla, S., Francisco, T.M. & Condez, T.H. (2025) Serra do Padre Ângelo (Minas Gerais): uma síntese da pesquisa em uma região prioritária para conservação. Boletim do Museu de Biologia Prof. Mello Leitão – Série INMA 2: 91–140. https://doi.org/10.70525/2025.39
  18. Gonella, P.M., Kameyama, C., Fernandes, U.G., Kiel, C.A., Fernandez, E.P. & Antar, G.M. (2026) Oplonia doceana sp. nov. (Acanthaceae), from the Doce River basin: first record of the genus for Brazil and insights into Graptophyllinae generic delimitation. Plant Systematics and Evolution 312: 43. https://doi.org/10.1007/s00606-026-02004-0
  19. Gonella, P.M., Rivadavia, F. & Fleischmann, A. (2015) Drosera magnifica (Droseraceae): the largest New World sundew, discovered on Facebook. Phytotaxa 220: 257–267. https://doi.org/10.11646/phytotaxa.220.3.4
  20. Gonella, P.M., Rocha, L.H. & Andrino, C.O. (2023) Rediscovery of a tiny plant species reinforces the need to protect Serra do Padre Ângelo in south-east Brazil. Oryx 57: 689–700. https://doi.org/10.1017/S0030605323001138
  21. Gonella, P.M., Siniscalchi, C.M. & Loeuille, B. (2021) Where Linnaeus meets Wallace: new botanical discoveries highlight the biological shortfalls in the easternmost campos rupestres of Minas Gerais, Brazil. Capitulum 1: 48–53. https://doi.org/10.53875/capitulum.01.1.05
  22. IUCN (2012) IUCN Red List categories and criteria. Version 3.1. Second edition. IUCN, Gland & Cambridge, 32 pp. Available from: https://portals.iucn.org/library/node/10315
  23. IUCN Standards and Petitions Committee (2024) Guidelines for using the IUCN Red List categories and criteria. Version 15.1. IUCN, Gland. Available from: https://www.iucnredlist.org/resources/redlistguidelines
  24. Mello-Silva, R. (2018) Land of the giants: remarkable botanical findings highlight a new area for conservation in Brazil. Rodriguésia 69: 933–937. https://doi.org/10.1590/2175-7860201869245
  25. Mello-Silva, R. & Menezes, N.L. (1999) Two new Brazilian Velloziaceae, Vellozia auriculata and Vellozia gigantea, and a key to the related dracenoid species of Vellozia. Novon 9: 536–541. https://doi.org/10.2307/3392159
  26. Menini Neto, L., Furtado, S.G., Zappi, D.C., Oliveira-Filho, A.T. & Forzza, R.C. (2016) Biogeography of epiphytic angiosperms in the Brazilian Atlantic Forest. Brazilian Journal of Botany 39: 261–273. https://doi.org/10.1007/s40415-015-0238-7
  27. Mezzonato-Pires, A.C., Ribeiro, R.S. & Gonella, P.M. (2021) Maracujá on the rocks: a new Passiflora species (Passifloraceae sensu stricto) from the rupicolous ecosystems of the Brazilian Atlantic rainforest. Willdenowia 51: 371–381. https://doi.org/10.3372/wi.51.51305
  28. Palisot de Beauvois, A.M.F.J. (1812) Essai d’une Nouvelle Agrostographie. Chez L’Auteur, Paris, 311 pp.
  29. QGIS Development Team (2026) QGIS Geographic Information System. Open Source Geospatial Foundation Project. Available from: http://qgis.osgeo.org (accessed 9 Jan. 2026)
  30. Sakuragui, C.M. & Mayo, S.J. (1999) A new species of Anthurium (Araceae) from southeastern Brazil. Feddes Repertorium 110: 535–539. https://doi.org/10.1002/fedr.19991100714
  31. Schott, H.W. (1829) Für Liebhaber der Botanik. Wiener Zeitschrift für Kunst, Literatur, Theater und Mode 1829: 828.
  32. Stearn, W.T. (2004) Botanical Latin. 4th edition. Timber Press, Portland, 560 pp.
  33. Temponi, L.G., Garcia, F.C.P., Sakuragui, C.M. & Carvalho-Okano, R.M. (2005) Diversidade de formas de vida das Araceae no Parque Estadual do Rio Doce, Minas Gerais. Rodriguésia 56: 3–13. https://doi.org/10.1590/2175-78602005568801
  34. Thiers, B. (continuously updated) Index Herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 10 November 2025)
  35. Valadares, R.T. & Sakuragui, C.M. (2015) A new species of Anthurium (Araceae) from a seasonal semideciduous forest in Espírito Santo State, Brazil. Phytotaxa 217: 80–86. https://doi.org/10.11646/phytotaxa.217.1.7
  36. Valadares, R.T., Kollmann, L.J.C. & Sakuragui, C.M. (2019) New species of Anthurium (Araceae) with cordate leaves from southeastern Brazil. Novon 27: 3–7. https://doi.org/10.3417/2018270
  37. Valadares, R.T., Manhães, V.C. & Couto, D.R. (2021) Anthurium alegrense (Araceae), a new species with an internally purplish stem from southeastern Brazil. Kew Bulletin 76: 257–261. https://doi.org/10.1007/S12225-021-09945-4

How to Cite

Valadares, R.T. & Gonella, P.M. (2026) Hidden among rocks: Anthurium occultum (Araceae), a short-pedunculate species from the campos rupestres of eastern Minas Gerais, Brazil. Phytotaxa 772 (3): 285–292. https://doi.org/10.11646/phytotaxa.772.3.8