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Type: Article
Published: 2026-05-22
Page range: 155-166
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Taxonomic and nomenclatural novelties in the Neotropical genus Schnella section Caulotretus (Leguminosae: Cercidoideae)

Universidade do Estado da Bahia; Programa de Pós-graduação em Biodiversidade Vegetal; Departamento de Ciências Exatas e da Terra; Campus II; Rodovia Alagoinhas/Salvador; BR 110; Km 02; 48040-210; Alagoinhas; Bahia; Brazil
Universidade Estadual de Feira de Santana; Av. Transnordestina s.n.; Novo Horizonte; 44036-900; Feira de Santana; Bahia; Brazil
Instituto de Biología; Departamento de Botánica y Herbario Nacional de México; Universidad Nacional Autónoma de México; Circuito Zona Deportiva s.n.; Ciudad Universitaria; Mexico City; Mexico
Universidade Estadual de Feira de Santana; Av. Transnordestina s.n.; Novo Horizonte; 44036-900; Feira de Santana; Bahia; Brazil
Universidade do Estado da Bahia; Programa de Pós-graduação em Biodiversidade Vegetal; Departamento de Ciências Exatas e da Terra; Campus II; Rodovia Alagoinhas/Salvador; BR 110; Km 02; 48040-210; Alagoinhas; Bahia; Brazil
Amazon Rainforest Bolivia Fabaceae Lianas Neotropical Flora Eudicots Peru

Abstract

Schnella isiboro, a new species from the Amazon rainforest is described and illustrated. Information on its distribution, conservation status, and relationships with morphologically similar species is also provided. Schnella isiboro is characterized by its bilobed leaf blade 6–12 × 5–10.5 cm, rounded to orbicular and concave bracts, ovate-lanceolate bracteoles, and pink petals 22–28 × 4–9 mm. Additionally, based on a unique combination of macromorphological and palynological evidence, we propose S. klugii as a synonym of S. herrerae, and designate a new lectotype.

References

  1. Bachman, S., Moat, J., Hill, A.W., de 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. Beentje, H. (2016) The Kew plant glossary: An illustrated dictionary of plant terms. Royal Botanic Gardens, Kew, 170 pp.
  3. Bentham, G. (1865) Leguminosae. In: Bentham, G. & Hooker, J.D. (Eds.) Genera Plantarum 1 (2). L. Reeve & Co., London, pp. 434–600.
  4. Bisby, F.A. & Coddington, J. (1995) Biodiversity from a taxonomic and evolutionary perspective. In: Heywood, V.H. & Watson, R.T. (Eds.) Global Biodiversity Assessment. Cambridge University Press, Cambridge, pp. 27–56.
  5. Candolle, A.P. de (1825) Prodromus Systematis Naturalis Regni Vegetabilis 2. Treuttel & Würtz, Paris, 644 pp.
  6. Casas-Restrepo, L.C., Fonseca-Cortes, A., Queiroz, L.P. & dos Santos, F.D.A.R. (2023) Schnella madeleineae (Leguminosae: Cercidoideae), a new species with entire leaves from the Magdalena River Valley of Colombia. Phytotaxa 591 (4): 253–262. https://doi.org/10.11646/phytotaxa.591.4.2
  7. Casas-Restrepo, L.C., de Oliveira, D.C., dos Santos, M.F., de Queiroz, L.P. & Ribeiro dos Santos, F.D.A. (2024) Pollen morphology reveals higher specialisation degree in Schnella section Caulotretus (Cercidoideae: Leguminosae): importance for pollination and taxonomic significance. Brazilian Journal of Botany 47 (4): 1129–1146. https://doi.org/10.1007/s40415-024-01038-3
  8. Delgado, A.C. (2017) The TIPNIS conflict in Bolivia. Contexto internacional 39 (2): 373–392. https://doi.org/10.1590/s0102-8529.2017390200009
  9. De Queiroz, K. (2007) Species concepts and species delimitation. Systematic biology 56 (6): 879–886. https://doi.org/10.1080/10635150701701083
  10. Du Rietz, G.E. (1930) The fundamental units of biological taxonomy. Svensk Botanisk Tidskrift 24: 333–428.
  11. Fonseca-Cortés, A., Snak, C., Beck, S.G., Clark, R.P., Klitgaard, B., Hurtado Ulloa, R., Cayola Perez, L., Maldonado, C. & Queiroz, L.P. (2025) How many Macropsychanthus (Leguminosae: Papilionoideae) species are found in Bolivia? Clarification of the taxa, a new species and an identification key. Kew Bulletin 80: 315–322. https://doi.org/10.1007/s12225-024-10252-x
  12. Fonseca-Cortés, A., Snak, C., Clark, R., Cardoso, D. & Paganucci de Queiroz, L. (In press) New canopy legume species highlight liana gap sampling across Amazonian and Atlantic rain forests. Taxon.
  13. Hao, G., Zhang, D.X., Zhang, M.Y., Guo, L.X. & Li, S.J. (2003) Phylogenetics of Bauhinia subgenus Phanera (Leguminosae: Caesalpinioideae) based on ITS sequences of nuclear ribosomal DNA. Botanical Bulletin of Academia Sinica 44: 223–228.
  14. IUCN (2024) Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Subcommittee. Available from: http://ww.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 1 March 2025)
  15. Lewis, G.P. & Forest, F. (2005) Cercideae. In: Lewis, G., Schrire, B., Mackinder, B. & Lock, M. (Eds.) Legumes of the World. Royal Botanic Gardens, Kew, pp. 57–58.
  16. Linnaeus, C. (1753) Species Plantarum, vol. 1. Laurentius Salvius, Stockholm, 560 pp.
  17. Loureiro, J. de (1790) Flora Cochinchinensis, vol. 1. Ulyssipone Typis et expensis academicis, Lisboa, 353 pp.
  18. Raddi, G. (1820) Quaranta piante nuove del Brasile. Presso la Società Tipografica, Modena, pp. 1–35.
  19. Queiroz, L.P. de (2006) New species and new combinations in Phanera Lour. (Caesalpinioideae: Cercideae) from the Caatinga Biome. Neodiversity 1: 6–10. https://doi.org/10.13102/neod.11.2
  20. Queiroz, L.P. & Snak, C. (2020) Revisiting the taxonomy of Dioclea and related genera (Leguminosae, Papilionoideae), with new generic circumscriptions. PhytoKeys 164: 67–114. https://doi.org/10.3897/phytokeys.164.55441
  21. Sinou, C., Forest, F., Lewis, G.P. & Bruneau, A. (2009) The genus Bauhinia s.l. (Leguminosae): a phylogeny based on the plastid trnL-trnF region. Botany 87: 947–960. https://doi.org/10.1139/B09-065
  22. Soares, M.V.B., Koenen, E.J.M., Iganci, J.R.V. & Morim, M.P. (2022) A new generic circumscription of Hydrochorea (Leguminosae, Caesalpinioideae, mimosoid clade) with an amphi-Atlantic distribution. PhytoKeys 205: 401–437. https://doi.org/10.3897/phytokeys.205.82775
  23. Thiers, B. (2026 [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/ih (accessed 20 May 2026)
  24. Trethowan, L.A., Clark, R.P. & Mackinder, B.A. (2015) A synopsis of the neotropical genus Schnella (Cercideae: Caesalpinioideae: Leguminosae) including 12 new combinations. Phytotaxa 204: 237–252. https://doi.org/10.11646/phytotaxa.204.4.1
  25. Vaz, A.M.S.F. (2010) New combinations in Phanera (Leguminosae: Cercideae) from Brazil. Rodriguésia 6: 33–40. https://doi.org/10.1590/2175-7860201061129
  26. Wunderlin, R. (2010a) Reorganization of the Cercideae (Fabaceae: Caesalpinioideae). Phytoneuron 48: 1–5.
  27. Wunderlin, R. (2010b) New combinations in Schnella (Fabaceae: Caesalpinioideae: Cercideae). Phytoneuron 49: 1–5.
  28. Wunderlin, R.P. & Eilers, R.M. (2009) Revision of Bauhinia subgenus Phanera section Schnella (Cercideae: Caesalpinioideae: Fabaceae). Journal of the Botanical Research Institute of Texas: 619–628.
  29. Wunderlin, R.P., Larsen, K. & Larsen, S.S. (1987) Reorganization of the Cercideae (Fabaceae: Caesalpinioideae). Det Kongelige Danske Videnskabernes Selskab Biologiske Skrifter 28: 1–40.

How to Cite

Casas-Restrepo, L.C., Fonseca-Cortés, A., Pace, M.R., Queiroz, L.P.D. & Conceição, A.D.S. (2026) Taxonomic and nomenclatural novelties in the Neotropical genus Schnella section Caulotretus (Leguminosae: Cercidoideae). Phytotaxa 758 (2): 155–166. https://doi.org/10.11646/phytotaxa.758.2.4