Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 725 No. 2: 23 Oct. 2025
Type: Article
Published: 2025-10-23
DOI: 10.11646/phytotaxa.725.2.5
Page range: 184-194
Abstract views: 290
PDF downloaded: 6

Expanding the known range of Convolvulus hasslerianus (Convolvulaceae) in the Brazilian Cerrado: new record, nomenclatural notes, and conservation assessment

UNESP – Universidade Estadual Paulista, IBB – Instituto de Biociências de Botucatu, Departamento de Biodiversidade e Bioestatística, Botucatu, São Paulo, Brazil
UNESP – Universidade Estadual Paulista, IBB – Instituto de Biociências de Botucatu, Departamento de Biodiversidade e Bioestatística, Botucatu, São Paulo, Brazil
UNESP – Universidade Estadual Paulista, IBB – Instituto de Biociências de Botucatu, Departamento de Biodiversidade e Bioestatística, Botucatu, São Paulo, Brazil
UFPE – Universidade Federal de Pernambuco, Centro de Biociências, Departamento de Botânica, Recife, Pernambuco, Brazil
UNESP – Universidade Estadual Paulista, IBB – Instituto de Biociências de Botucatu, Departamento de Biodiversidade e Bioestatística, Botucatu, São Paulo, Brazil
UNESP – Universidade Estadual Paulista, IBB – Instituto de Biociências de Botucatu, Departamento de Biodiversidade e Bioestatística, Botucatu, São Paulo, Brazil
UNESP – Universidade Estadual Paulista, IBB – Instituto de Biociências de Botucatu, Departamento de Biodiversidade e Bioestatística, Botucatu, São Paulo, Brazil
UNESP – Universidade Estadual Paulista, IBB – Instituto de Biociências de Botucatu, Departamento de Biodiversidade e Bioestatística, Botucatu, São Paulo, Brazil; Royal Botanic Gardens, Kew, Richmond, UK
Botucatu Cerrado Conservation Convolvulus São Paulo typification urbanization Eudicots

Abstract

Floristic surveys are the foundational data upon which conservation assessments and evolutionary studies lie on. This type of survey is often neglected, especially near urban centers where most biodiversity is presumed to be lost. Paradoxically, natural habitat patches near urban centers require the most attention, due to the greater pressure from human action. While conducting a floristic survey in a Cerrado remnant within the urban perimeter in the municipality of Botucatu, in the countryside of the most urbanized state of Brazil (São Paulo), we found a new record of a Convolvulaceae species. Convolvulus hasslerianus is distributed through Argentina, Paraguay, Bolivia, and Brazil. In São Paulo, there has been no confirmed occurrence until now. In this study, we elucidate the history of the species supposed collection to São Paulo, recorded it for the first time in Botucatu, and reported another occurrence to Itapetininga, from 78 years ago. We also provide descriptions of its fruit and seed for the first time, propose a lectotypification, and assessed its preliminary conservation status, emphasizing the significance of field study on remnants of Cerrado near urban areas and address the threats faced by these fragmented ecosystems.

References

  1. Bebber, D.P., Carine, M.A., Wood, J.R.I., Wortley, A.H., Harris, D.J., Prance, G.T., Davidse, G., Paige, J., Pennington, T.D., Robson, N.K.B. & Scotland, R.W. (2010) Herbaria are a major frontier for species discovery. Proceedings of the National Academy of Sciences 107 (51): 22169–22171. https://doi.org/10.1073/pnas.1011841108
  2. Beentje, H.J. (2010) The Kew plant glossary: an illustrated dictionary of plant terms. 2 ed. Kew Publishing, Royal Botanic Gardens, London.
  3. Beauvois, P.de & Joseph, A.M.F. (1812) Urochloa. Essai d’une Nouvelle Agrostographie 52, pl. 11, f. 1.
  4. Chodat, R. & Hassler, E. (1905) Plantae Hasslerianae. Bulletin de l’Herbier Boissier 2 (5): 671–699.
  5. ESRI, ArcGIS for Desktop 10.5. (2016) Environmental Systems Research Institute. Redlands, California.
  6. Ferreira, P.P.A. & Simão-Bianchini, R. (2024) Convolvulus in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available from: https://floradobrasil.jbrj.gov.br/FB6975 (accessed 19 February 2024)
  7. Catálogo de las Plantas Vasculares del Cono Sur, Darwinion. (2024) Available from: http://www.darwin.edu.ar/ Proyectos/FloraArgentina/fa.htm (accessed 19 February 2024)
  8. Daru, B.H., Park, D.S., Primack, R.B., Willis, C.G., Barrington, D.S., Whitfeld, T.J.S., Seidler, T.G., Sweeney, P.W., Foster, D.R., Ellison, A.M. & Davis, C.C. (2017) Widespread sampling biases in herbaria revealed from large-scale digitization. New Phytologist 217: 939–955. https://doi.org/10.1111/nph.14855
  9. Durigan, G. & Ratter, J.A. (2015) The need for a consistent fire policy for Cerrado Conservation. Journal of Applied Ecology 53: 11–15. https://doi.org/10.1111/1365-2664.12559
  10. Fernandes, G.W., Coelho, M.S., Machado, R.B., Ferreira, M.E., Aguiar, L.M.S., Dirzo, R., Scariot, A. & Lopes, C.R. (2016) Afforestation of savanas: an impending ecological disaster. Natureza & Conservação 14: 146–151. https://doi.org/10.1016/j.ncon.2016.08.002
  11. Françoso, R.D., Brandão, R., Nogueira, C.C., Salmona, Y.B., Machado, R.B. & Colli, G.R. (2015) Habitat loss and the effectiveness of protected areas in the Cerrado Biodiversity Hotspot. Natureza & Conservação 13: 35–40. https://doi.org/10.1016/j.ncon.2015.04.001
  12. IUCN Standards and Petitions Committee (2024) Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Committee. [https://www.iucnredlist.org/documents/RedListGuidelines.pdf]
  13. JSTOR Global plants. (2023) Available from: https://plants.jstor.org/collection/TYPSPE (accessed 29 May 2023)
  14. Jussieu, A.L. (1789) Genera plantarum: secundum ordines naturales disposita, juxta methodum in Horto regio parisiensi exaratam. Herissant et Theophilum Barrois, Paris, 498 pp. https://doi.org/10.5962/bhl.title.284
  15. Kowarik, I. (1995) On the role of alien species in urban flora and vegetation. In: Pysek, P., Prach, K., Rejmánek, M. & Wade, P.M. (eds.) Plant Invasions—General Aspects and Special Problems. Amsterdam, SPB Academic, pp. 85–103.
  16. Lamarck, J.B.A.P.M. (1793) Tableau encyclopédique et méthodique des trois règnes de la nature. Botanique. Panckoucke, Paris, 551 pp.
  17. L’Héritier de Brutelle, C.L. (1784) Convolvulus hermanniae. Stirpes Novae aut Minus Cognitae 4: 67.
  18. Linnaeus, C. (1762) Convolvulus purpureus. Species Plantarum (ed. 2) 1: 219.
  19. Linnaeus, C. (1753) Convolvulus. Species Plantarum 1: 153–154.
  20. Mabberley, D.J. (1987) The Plant Book. 2 ed. Cambridge University press, Cambridge.
  21. McKinney, M.L. (2002) Urbanization, biodiversity, and conservation. BioScience 52: 883–890. https://doi.org/10.1641/0006-3568(2002)052[0883:UBAC]2.0.CO;2
  22. Munhoz, C.B.R. & Felfili, J.M. (2006) Fitossociologia do estrato herbáceo-subarbustivo de uma área de campo sujo no Distrito Federal, Brasil. Acta Botanica Brasilica 20: 671–685. https://doi.org/10.1590/S0102-33062006000300017
  23. O’Donell, C.A. (1950) Convolvuláceas americanas nuevas o criticas I. Lilloa 23: 421–455.
  24. O’Donell, C.A. (1959) Convolvulus lilloi. Lilloa 29: 293.
  25. Overbeck, G.E., Andrade, B.A., Vélez-Martin, E. & Pillar, V.P. (2024) Beyond Protected Areas: Conservation of South Brazilian Grasslands. In: Overbeck, G.E., Pillar, V.P., Müller, S.C. & Bencke, G.A. (eds.) South Brazilian Grasslands: Ecology and Conservation of the Campos Sulinos. Cham, Springer, pp. 447–473. https://doi.org/10.1007/978-3-031-42580-6_17
  26. Pignal, M., Romaniuc-Neto, S., De Souza, S., Chagnoux, S. & Lange-Canhos, D.A. (2013) Saint-Hilaire virtual herbarium, a new upgradeable tool to study Brazilian botany. Adansonia, sér. 3, 35 (1): 7–18. https://doi.org/10.5252/a2013n1a1
  27. Pilon, N.A.L., Cava, M.G.B., Nalon, M.A., Zimback, L. & Durigan, G. (2017) Riqueza, relevância e estratégias para a conservação de fisionomias campestres do Cerrado no Horto Florestal de Botucatu, SP. Brasil. Revista do Instituto Florestal 29 (1): 19–37. https://doi.org/10.24278/2178-5031.201729102
  28. Pimm, S.L. (2020) What we need to know to prevent a mass extinction of plant species. Plants, People, Planet 3: 7–15. https://doi.org/10.1002/ppp3.10160
  29. POWO (2025) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet. Available from: https://powo.science.kew.org/ (accessed 23 August 2025)
  30. Reflora. Herbário Virtual. (2024) Available from: http://reflora.jbrj.gov.br/reflora/herbarioVirtual/ (accessed 11 January 2024).
  31. Ribeiro, J.F., Sano, S.M., Macêdo, J. & Silva, J.A. (1983) Os principais tipos fitofisionômicos da região dos Cerrados. Planaltina, Embrapa-CPAC. Boletim de Pesquisa, 21.
  32. Riva, F. & Fahrig, L. (2022) The disproportionately high value of small patches for biodiversity conservation. Conservation Letters 15 (3): e12881. https://doi.org/10.1111/conl.12881
  33. Roth, A.W. (1787) Botanische Abhandlungen und Beobachtungen. Iohann Iacob Winterschmidt, Nürnberg, 68 pp. https://doi.org/10.5962/bhl.title.129883
  34. Ruiz López, H. & Pavon, J.A. (1799) Convolvulus crenatifolius. Flora Peruviana 2: 10.
  35. Serrano, F.C., Vieira-Alencar, J.P.S., Díaz-Ricaurte, J.C., Valdujo, P.H., Martins, M. & Nogueira, C.C. (2023) The Wallacean Shortfall and the role of historical distribution records in the conservation assessment of an elusive Neotropical snake in a threatened landscape. Journal for Nature Conservation 72: 126350. https://doi.org/10.1016/j.jnc.2023.126350
  36. Simão-Bianchini, R., Ferreira, P.P.A., Pastore, M., Delgado-Junior, G.C., Vasconcelos, L.V., Petrongari, F.S., Moreira, A.L.C., Buril, M.T., Simões, A.R. & Silva, C.V. (2024) Convolvulaceae in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available from: https://floradobrasil.jbrj.gov.br/FB93 (accessed 29 January 2024)
  37. Simões, A.R.G., Huerta-Ramos, G., Moreira, A.L.C., Paz, J.R.L., Ramos-Allende, J., Pisuttimarn, P., Rattanakrajang, P., Barbosa, J.C.J., Simão-Bianchini, R., Kojima, R.K., Paixão, C.P., Declercq, M., Kagame, S.P., Luna, J.A., Pace, M.R., Alcantara, C., Williams, B.D., Duque, L.O., Gowda, V. & Shimpale, V.B. (2024) Sweet potato, morning glories, bindweeds: An overview of Convolvulaceae. Rheedea 34 (5): 267–308.
  38. SpeciesLink. (2024) Centro de Referência em Informação Ambiental (CRIA). Available from: https://specieslink.net/search/ (accessed 11 January 2024)
  39. Thiers, B. (2024) Index herbarium: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/ih/ (accessed 30 January 2024)
  40. Turland, N.J., Wiersema, J.H., Barrie, F.R., Gandhi, K.N., Gravendyck, J., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Klopper, R.R., Knapp, S., Kusber, W.-H., Li, D.-Z., May, T.W., Monro, A.M., Prado, J., Price, M.J., Smith, G.F. & Zamora Señoret J.C. (2025) International Code of Nomenclature for algae, fungi, and plants (Madrid Code). [Regnum Vegetabile, vol. 162]. Chicago, USA: University of Chicago Press.
  41. United Nations Environment Programme (2022) Kunming-Montreal Global Biodiversity Framework.
  42. Veldeman, J.W., Overbeck, G.E., Negreiros, D., Mahy, G., Stradic, S.L.E., Fernandes, G.W., Durigan, G., Buisson, E., Putz, F.E. & Bond, W.J. (2015) Tyranny of trees in grassy biomes. Science 347 (6221): 484–485. https://doi.org/10.1126/science.347.6221.484-c
  43. Wood, J.R.I., Williams, B.R.M., Mitchell, T.C., Carine, M.A., Harris, D.J. & Scotland, R.W. (2015) A foundation monograph of Convolvulus L. (Convolvulaceae). PhytoKeys 51: 1–282. https://doi.org/10.3897/phytokeys.51.7104

How to Cite

Monteiro, T.C.E., Nascimento, G.M., Campos, R.P., Frazão, A., Melo, H.M.R., Lira, B.B.C., Radovich, B.C. & Fortuna-Perez, A.P. (2025) Expanding the known range of Convolvulus hasslerianus (Convolvulaceae) in the Brazilian Cerrado: new record, nomenclatural notes, and conservation assessment. Phytotaxa 725 (2): 184–194. https://doi.org/10.11646/phytotaxa.725.2.5