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Issue: Vol. 682 No. 3: 23 Jan. 2025
Type: Article
Published: 2025-01-23
DOI: 10.11646/phytotaxa.682.3.10
Page range: 288-294
Abstract views: 64
PDF downloaded: 3

Dichorisandra fadenii (Commelinaceae), a new villose species from southwestern Amazonia

Universidade Federal do Recôncavo da Bahia (UFRB), Cruz das Almas, Bahia, Brazil
Universidade Federal do Recôncavo da Bahia (UFRB), Cruz das Almas, Bahia, Brazil
Universidade Estadual de Campinas (UNICAMP), Instituto de Biologia, Departamento de Biologia Vegetal, Campinas, SP, Brazil
Universidade Estadual de Campinas (UNICAMP), Instituto de Biologia, Departamento de Biologia Vegetal, Campinas, SP, Brazil
Commelinales Amazonian Forest endemism Flora of Acre villose indument lanceoloid fruits Monocots

Abstract

We describe, discuss, and illustrate Dichorisandra fadenii, a new species endemic in an area of southwestern Amazonia (Brazil, Peru and Bolivia). The new species can be differentiated from its congeneric species by having villose stem and leaves, whitish flowers with six stamens, yellowish anthers, opening by 2 apical pores, and lanceoloid, acuminate fruits. Discussion of relevant characters, comparisons with similar species, description, distribution map, and illustrations are provided. The species is assessed as ‘Vulnerable’, due to its restricted and fragmented distribution and plausible threats to the habitats in Amazonian forests.

References

  1. Almeida Junior, R.A.C., Souza, E.H., Costa, G.M., Rossi, M.L., Bittrich, V., Amaral, M.C.E. & Aona, L.Y.S. (2023) Phenology, floral and reproductive biology of Dichorisandra rhizantha Aona (Commelinaceae), an endemic endangered species in an Atlantic Forest fragment. Microscopy Research and Technique 86: 573–588. https://doi.org/10.1002/jemt.24296
  2. Aona, L.Y.S., Souza, E.H., Almeida Junior, R.A.C., Marinho, L.C., Bittrich, V. & Amaral, M.C.E. (2022) Dichorisandra rhizantha (Commelinaceae), a new morphologically unusual species from Bahia, Brazil. Phytotaxa 538: 257–264. https://doi.org/10.11646/phytotaxa.538.3.9
  3. Aona, L.Y.S. (2008) Revisão taxonômica e análise cladística do gênero Dichorisandra J. C. Mikan (Commelinaceae). Ph.D. dissertation. Universidade Estadual de Campinas, Campinas, Brazil, 310 pp.
  4. Aona, L.Y.S., Bittrich, V. & Amaral, M.C.E. (2017) Taxonomic novelties in Brazilian Dichorisandra (Commelinaceae): D. sagittata sp. nov. and D. glabrescens stat. nov. Brittonia 69: 209–217. https://doi.org/10.1007/s12228-016-9456-y
  5. Aona, L.Y.S., Faden, R.B. & Amaral, M.C.E. (2012) Five new species of Dichorisandra J.C.Mikan (Commelinaceae). Kew Bulletin 66: 479–491. https://doi.org/10.1007/s12225-011-9308-6
  6. Aona, L.Y.S. & Amaral, M.C.E. (2020) Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available from: https://floradobrasil.jbrj.gov.br/FB6924 (accessed 10 February 2024)
  7. Aona-Pinheiro, L.Y.S. & Amaral, M.C.E. (2012) Four new species of Dichorisandra J.C. Mikan (Commelinaceae) from Southeast Brazil. Phytotaxa 48: 7–22. http://doi.org/10.11646/phytotaxa.48.1.2
  8. Aona, L.Y.S., Bittrich, V. & Amaral, M.C.E. (2018) Taxonomic and nomenclatural notes on Brazilian Dichorisandra (Commelinaceae). Phytotaxa 348: 1–13. https://doi.org/10.11646/phytotaxa.348.1.1
  9. Aublet, F. (1775) Histoire des plantes de la Guiane Françoise, rangées suivant la méthode sexuelle, avec plusiers mémoires sur différens objets intéressans, relatifs à la culture & au commerce de la Guiane Françoise, & une notice des plantes de l’Isle-de-France. Paris, P.F. Didot Jeune, 35 pp. https://doi.org/10.5962/bhl.title.48831
  10. Bachman, S., Moat, J., Hill, A.W., Torre, J. & Scott, B. (2011) Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: Smith, V. & Penev, L. (Eds.) e‒Infrastructures for data publishing in biodiversity science. ZooKeys 150: 117–126. https://doi.org/10.3897/zookeys.150.2109
  11. Berenguer, E., Armenteras, D., Alencar, A., Almeida, C., Aragão, L., Barlow, J., Bilbao, B., Brando, P., Bynoe, P., Fearnside, P., Finer, M., Flores, B.M., Jenkins, C.N., Silva Junior, C.H.L., Lees, A.C., Smith, C.C., Souza, C. & García-Villacort, R. (2021) Chapter 19: Drivers and Ecological Impacts of Deforestation and Forest Degradation. In: Nobre, C., Encalada, A., Anderson, E., Roca Alcazar, F.H., Bustamante, M., Mena, C., Peña-Claros, M., Poveda, G., Rodriguez, J.P., Saleska, S., Trumbore, S., Val, A.L., Villa Nova, L., Abramovay, R., Alencar, A., Rodríguez Alzza, C., Armenteras, D., Artaxo, P., Athayde, S., Barretto Filho, H.T., Barlow, J., Berenguer, E., Bortolotto, F., Costa, F.A., Costa, M.H., Cuvi, N., Fearnside, P.M., Ferreira, J., Flores, B.M., Frieri, S., Gatti, L.V., Guayasamin, J.M., Hecht, S., Hirota, M., Hoorn, C., Josse, C., Lapola, D.M., Larrea, C., Larrea-Alcazar, D.M., Lehm Ardaya, Z., Malhi, Y., Marengo, J.A., Melack, J., Moraes, R.M., Moutinho, P., Murmis, M.R., Neves, E.G., Paez, B., Painter, L., Ramos, A., Rosero-Peña, M.C., Schmink, M., Sist, P., ter Steege, H., Val, P., van der Voort, H., Varese, M. & Zapata-Ríos, G. (Eds.) Amazon Assessment Report 2021. United Nations Sustainable Development Solutions Network, New York, USA. https://doi.org/10.55161/AIZJ1133
  12. Clarke, C.B. (1902) Commelinaceae. Bulletin of the Torrey Botanical Club 29: 1–703.
  13. Costa, C. (2020) Amazônia: O que ameaça a floresta em cada um de seus 9 países? BBC News Brazil. Available from: https://www.bbc.com/portuguese/brasil-51377232 (accessed 17 May 2024)
  14. Costa, J.G., Fearnside, P.M., Oliveira, I., Anderson, L.O., Aragão, L.E.O.C., Almeida, M.R.N., Clemente, F.S., Nascimento, E.S., Souza, G.C., Karlokoski, A., Melo, A.W.F., Araújo, E.A., Souza, R.O., Graça, P.M.L.A. & Silva, S.A. (2023) Forest Degradation in the Southwest Brazilian Amazon: Impact on Tree Species of Economic Interest and Traditional Use. Fire 6: 234. https://doi.org/10.3390/fire6060234
  15. Faden, R.B. & Hunt, D.R. (1991) The classification of the Commelinaceae. Taxon 40: 19–31. https://doi.org/10.2307/1222918
  16. Feng, X., Merow, C., Liu, Z., Park, D.S., Roehrdanz, P.R., Maitner, B., Newman, E.A., Boyle, B.L., Lien, A., Burger, J.R., Pires, M.M., Brando, P.M., Bush, M.B., McMichael, C.N.H., Neves, D.M., Nikolopoulos, E.I., Saleska, S.R., Hannah, L., Breshears, D.D., Evans, T.P., Soto, J.R., Ernst, K.C. & Enquist, B.J. (2021) How deregulation, drought and increasing fire impact Amazonian biodiversity. Nature 597: 516–521. https://doi.org/10.1038/s41586-021-03876-7
  17. Hickey, M. & King, C. (2004) The Cambridge illustrated glossary of botanical terms. Cambridge University Press, Cambridge, 208 pp.
  18. IUCN (2012) IUCN Red List Categories and Criteria: Version 3.1. Second edition. Gland, Switzerland and Cambridge, UK: IUCN. iv + 32 pp. Available from: https://www.iucnredlist.org/resources/categories-and-criteria. (accessed 24 October 2024)
  19. IUCN (2024) Standards and Petitions Committee. Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Committee. Available from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 24 October 2024)
  20. Laurance, W.F., Cochrane, M.A., Bergen, S., Fearnside, P.M., Delamônica, P., Barber, C., D’Angelo, S. & Fernandes, T. (2001) The Future of the Brazilian Amazon. Science 291: 438–439. https://doi.org/10.1126/science.291.5503.438
  21. Macbride, J.F. (1931) Publications of the Field Museum of Natural History. Botanical series. Vol. 11. Chicago, IL, pp. 8.
  22. Mirbel, C.F.B. (1804) Histoire naturelle, générale et particulière, des plantes 8: 177.
  23. Mikan, J.C. (1820) Delectus Florae et Faunae Brasiliensis 1: 1–3.
  24. Oliveira Filho, H., Oliveira-Júnior, J.F., Silva, M.V., Jardim, A.M.R.F., Shah, M., Gobo, J.P.A., Blanco, C.J.C., Pimentel, L.C.G., Silva, C., Silva, E.B., Machado, T.B., Pereira, C.R., Valappil, N.K.M., Hamza, V., Haq, M.A., Khan, I., Mohamed, A. & Attia, E.A. (2022) Dynamics of Fire Foci in the Amazon Rainforest and Their Consequences on Environmental Degradation. Sustainability 14: 9419. https://doi.org/10.3390/su14159419
  25. Philipson, W.R. (1956) New species from the Sierra de La Macarena (Colombia). Mutisia 24: 1–7.
  26. PRODES—Projeto de Monitoramento do Desmatamento na Amazônia Legal por Satélite, (2024) Available from: http://www.obt.inpe.br/OBT/assuntos/programas/amazonia/prodes/ (accessed 17 May 2024).
  27. Radford, A.E., Dickson, W.C., Massey, J.R. & Bell, C.R. (1974) Vascular plants systematics. Harper & Ro., New York, 891 pp.
  28. Reis, M., Graça, P.M.L.A., Yanai, A.M., Ramos, C.J.P. & Fearnside, P.M. (2021) Forest fires and deforestation in the central Amazon: Effects of landscape and climate on spatial and temporal dynamics. Journal of Environmental Management 288: 112310. https://doi.org/10.1016/j.jenvman.2021.112310
  29. Robbins, S. (2024) Bolivian Amazon Faces Threats From All Sides. InSight Crime. Available from: https://insightcrime.org/investigations/bolivian-amazon-faces-threats-from-all-sides/ (accessed 17 May 2024)
  30. Rojas, E., Zutta, B.R., Velazco, Y.K., Montoya-Zumaeta, J.G. & Salvà-Catarineu, M. (2021) Deforestation risk in the Peruvian Amazon basin. Environmental Conservation 48: 310–319. https://doi.org/10.1017/S0376892921000291
  31. Schultes, J.A. & Schultes, J.H. (1830) Commelinaceae. In: Cottae, J.G. (Ed.) Systema vegetabilium: secundum classes, ordines, genera, species, cum characteribus, differentiis et synonymis. Stuttgardtiae, Sumtibus J.G. Cottae.
  32. Shorthouse, D.P. (2010) SimpleMappr, an online tool to produce publication-quality point maps. Available from: https://www.simplemappr.net/ (accessed 13 February 2023)
  33. Sigrist, M.R. & Sazima, M. (2015) Phenology, reproductive biology and diversity of buzzing bees of sympatric Dichorisandra species (Commelinaceae): Breeding systems and performance of pollinators. Plant Systematic and Evolution 301: 1005–1015. https://doi.org/10.1007/s00606-014-1131-8
  34. Thiers, B.M. (2024) [Continuously updated]) Index Herbariorum. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih (accessed 24 October 2024)
  35. Ule, E.H.G. (1908) III. Beiträge zur Flora der Hylaea nach den Sammlungen von Ule‘s Amazonas-Expedition. Verhandlungen des Botanischen Vereins der Provinz Brandenburg 50: 70.