Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 660 No. 3: 23 Jul. 2024
Type: Article
Published: 2024-07-23
DOI: 10.11646/phytotaxa.660.3.5
Page range: 278-286
Abstract views: 1
PDF downloaded: 1

A new species of Phyllanthus (Phyllanthaceae) hiding in the shades in an urban Atlantic Forest in Rio de Janeiro State, Brazil

Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, 52171–900, Recife, PE, 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, Rua Pacheco Leão, 915, 22460–030, Rio de Janeiro, RJ, Brazil
Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Departamento de Ciências Florestais, Avenida Pádua Dias, 11, Independência, Caixa Postal 09, 13418‒900, Piracicaba, SP, Brazil
Universidade Estadual de Campinas, Instituto de Biologia, Rua Monteiro Lobato, 255, Cidade Universitária, 13083‒862, Campinas, SP, Brazil
Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, 52171–900, Recife, PE, Brazil
Eudicots Malpighiales neotropics Phyllanthoideae taxonomy

Abstract

A new and critically endangered species of Phyllanthus, endemic to the Parque Nacional da Tijuca in Rio de Janeiro State, Brazil, is described and illustrated here. Phyllanthus celatus is placed in Phyllanthus subgenus Phyllanthus section Phyllanthus subsection Phyllanthus. Morphologically it resembles P. augustinii, P. lobatus and P. niruri, but differs mainly by presenting reddish primary, secondary and intersecondary veins on the abaxial surface (vs absent in both species), and 5-lobed pistillate disc (vs entire only in P. augustinii and P. niruri). Of these, only P. lobatus has a lobed disc, but it differs in pistillate sepals light green (vs whitish or slightly pinkish), deeply 5-lobed pistillate glandular disc (vs 3–5-lobed), styles erect (vs curved), and geographic distribution restricted to the Southeast (vs South). The systematic position of this species and its morphological relationships with allies are discussed and field photographs, illustrations, a distribution map, preliminary conservation status, and taxonomic notes are provided.

References

  1. 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
  2. Baillon, H.E. (1865) Species Euphorbiacerum. Euphorbiacées Américaines. Adansonia 5: 305–360.
  3. Beentje, H.J. (2016) The Kew Plant Glossary, an illustrated dictionary of plant terms. 2nd ed. Royal Botanic Gardens, Kew, 184 pp.
  4. Bouman, R.W., Keβler, P.J.A., Telford, I.R.H., Bruhl, J.J. & Welzen, P.C. van. (2018) Subgeneric delimitation of the plant genus Phyllanthus (Phyllanthaceae). Blumea 63: 167–198. https://doi.org/10.3767/blumea.2018.63.02.14
  5. Bouman, R.W., Keβler, P.J.A., Telford, I.R.H., Bruhl, J.J., Strikj, J.S., Saunders, R.M.K., Esser, H.J., Falcón H.B. & Welzen, P.C. van. (2022) A revised phylogenetic classification of tribe Phyllantheae. Phytotaxa 540 (1): 1‒100. https://doi.org/10.11646/phytotaxa.540.1.1
  6. Falcón, B.H., Bazan, S.F., Iturralde, R.B. & Borsch, T. (2020) Phylogenetic relationships and character evolution in Neotropical Phyllanthus (Phyllanthaceae), with a focus on the Cuban and Caribbean taxa. International Journal of Plant Sciences 181 (3): 284–305. https://doi.org/10.1086/706454
  7. Freitas, S.R., Neves, C.L. & Chernicharo, P. (2006) Tijuca National Park: two pioneering restorationist initiatives in Atlantic Forest in southeastern Brazil. Brazilian Journal of Biology 66: 975‒982. https://doi.org/10.1590/S1519-69842006000600004
  8. Gerhardinger, L.C., Freitas, M.O., Andrade, A.B. & Rangel, C.A. (2006) Omobranchus punctatus (Teleostei: Blenniidae), an exotic blenny in the Southwestern Atlantic. Biological Invasions 8: 941‒946. https://doi.org/10.1007/s10530-005-5104-2
  9. Gomes, C.R., Figueiredo, M.A. & Salvio, G.M.M. (2021) Oportunidades de visitação oferecidas em áreas naturais protegidas: análise dos parques nacionais mais visitados no Brasil e nos Estados Unidos da América em 2017. Sociedade & Natureza 3: e58518. https://doi.org/10.14393/SN-v33-2021-58518
  10. Hickey, L.J. (1973) Classification of the architecture of dicotyledonous leaves. American Journal of Botany 60: 17–33. https://doi.org/10.1002/j.1537-2197.1973.tb10192.x
  11. IUCN (International Union for Conservation of Nature) (2012) IUCN Red List Categories and Criteria. Version 3.1. 2a ed. Gland, Switzerland and Cambridge, 32 pp.
  12. IUCN (IUCN Standards and Petitions Committee) (2022) Guidelines for using the IUCN Red List Categories and Criteria. Version 15.1. Available from: https://www.iucnredlist.org/resources/redlistguidelines (accessed 18 October 2023)
  13. Joly, C.A., Metzger, J.P. & Tabarelli, M. (2014) Experiences from the Brazilian Atlantic Forest: ecological findings and conservation initiatives. New Phytologist 204: 459–473. https://doi.org/10.1111/nph.12989
  14. Kathriarachchi, H., Samuel, R., Hoffmann, P., Mlinarec, J., Wurdack, K.J., Ralimanana, H., Stuessy, T.F. & Chase M.W. (2006) Phylogenetics of tribe Phyllantheae (Phyllanthaceae; Euphorbiaceae sensu lato) based on nrITS and plastid matK DNA sequence data. American Journal of Botany 93: 637–655. https://doi.org/10.3732/ajb.93.4.637
  15. Linnaeus, C. (1753) Species Plantarum. Laurentius Salvius, Stockholm, 1200 pp.
  16. Mendes, J.C.R., Silva, M.J., Athie-Souza, S.M. & Sales, M.F. (2021) Phyllanthus dardanoi, a new species of Phyllanthaceae from Northeastern Brazil. Systematic Botany 46: 96–101. https://doi.org/10.1600/036364421X16128061189440
  17. Mendes, J.C.R., Braga, J.M.A., Fraga, C.N., Pereira-Silva, R.A., Salles, M.F. & Athie-Souza, S.M. (2022) Two new species of Phyllanthus (Phyllanthaceae) from Southeastern Brazil. Systematic Botany 47: 853–860. https://doi.org/10.1600/036364422X16573019348382
  18. Orlandini, P., Cordeiro, I., Campos-Rocha, A. & Souza, V.C. (2020) A new species of Phyllanthus L. (Phyllanthaceae) with phylloclades from Minas Gerais, Brazil. Phytotaxa 455 (2): 167‒172. https://doi.org/10.11646/phytotaxa.455.2.8
  19. Orlandini, P., Cordeiro, I., Mendes, J.C.R., Campos-Rocha, A. & Souza, V.C. (2021) A new species of phyllocladiferous Phyllanthus (Phyllanthaceae) from the Atlantic Rain Forest. Systematic Botany 46: 1011‒1015. https://doi.org/10.1600/036364421X16370109698669
  20. Orlandini, P., Torres, A.M., Mendes, J.C.R. & Silva, M.J. (2023) Phyllanthus in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available from: https://floradobrasil.jbrj.gov.br/FB24160 (accessed 18 October 2023)
  21. Quantum Gis Development Team (2023) Quantum GIS Geographic Information System. Open Source Geospatial Foudation Project. Available from: https://www.qgis.org/en/site/ (accessed 16 March 2024)
  22. Pougy, N., Martins, E., Verdi, M., de Oliveira, J.A., Maurenza, D., Amaro, R. & Martinelli, G. (2014) Urban forests and the conservation of threatened plant species: the case of the Tijuca National Park, Brazil. Natureza & Conservação 12: 170‒173. https://doi.org/10.1016/j.ncon.2014.09.007
  23. Silva, M.J. (2009) Two new species of Phyllanthus (Phyllanthaceae). Novon 19: 229–233. https://doi.org/10.3417/2008022
  24. Silva, M.J. & Sales, M.F. (2007) Phyllanthus L. (Phyllanthaceae) em Pernambuco, Brasil. Acta Botanica Brasilica 21: 79–98. https://doi.org/10.1590/S0102-33062007000100008
  25. SOS Mata Atlântica & INPE (2022) Atlas dos remanescentes florestais da Mata Atlântica Período 2020–2021—Relatório Técnico. SOS Mata Atlântica, Instituto Nacional de Pesquisas Espaciais, São Paulo, 72 pp.
  26. Thiers, B. (Continuously updated) Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 18 October 2023)
  27. Torres, A.M., Silva, M.J., Cordeiro, W.P.F.S., Athiê-Souza, S.M. & Sales, M.F. (2020) Two new species of Phyllanthus (Phyllanthaceae) endemic to the Brazilian Atlantic rainforest. Phytotaxa 458 (2): 173‒181. https://doi.org/10.11646/phytotaxa.458.2.5
  28. Torres, A.M. & Silva, M.J. (2022) Phyllanthus longipetiolatus (Phyllanthaceae), a new species from São Paulo State, Brazil. Phytotaxa 567 (3): 287–293. https://doi.org/10.11646/phytotaxa.567.3.8
  29. Torres, A.M., Athiê-Souza, S.M., Cordeiro, W.P.F.S. & Sales, M.F. (2022) Phyllanthaceae in the Atlantic Forest of northeastern Brazil. Biota Neotropica 22 (2): e20211246. https://doi.org/10.1590/1676-0611-bn-2021-1246
  30. Torres, A.M. & Silva, M.J. (2023a) Phyllanthus capixaba (Phyllanthaceae), a new species endemic to Brazil supported by macromorphological and palynological evidence. Phytotaxa 48 (2): 307–312. https://doi.org/10.1600/036364423X16847773873125
  31. Torres, A.M. & Silva, M.J. (2023b) Novelties in Phyllanthus sect. Phyllanthus subsect. Phyllanthus (Phyllanthaceae): two new species, two new synonyms, and a lectotype. Nordic Journal of Botany: e04195. https://doi.org/10.1111/njb.04195
  32. Torres, A.M. & Silva, M.J. (2023c) Anatomical and macromorphological data support a new species of Phyllanthus (Phyllanthaceae) from southeastern Brazil. Phytotaxa 601 (2): 185–196. https://doi.org/10.11646/phytotaxa.601.2.5
  33. Webster, G.L. (1955) Studies of the Euphorbiaceae, Phyllanthoideae I. Taxonomic notes on the West Indian species of Phyllanthus. Contributions from the Gray Herbarium of Harvard University 176: 45‒63. https://doi.org/10.5962/p.336373
  34. Webster, G.L. (1970) Revision of the Phyllanthus (Euphorbiaceae) in the continental United States. Brittonia 22: 44‒76. https://doi.org/10.2307/2805721
  35. Webster, G.L. (2002) A synopsis of the Brazilian taxa of Phyllanthus section Phyllanthus (Euphorbiaceae). Lundellia 5: 1–26. https://doi.org/10.25224/1097-993X-5.1.1