Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 704 No. 3: 10 Jun. 2025
Type: Article
Published: 2025-06-10
DOI: 10.11646/phytotaxa.704.3.2
Page range: 232-238
Abstract views: 89
PDF downloaded: 87

Dombeya scorpioides (Malvaceae: Dombeyoideae), a new species from southeastern Madagascar

Institut de Systématique, Evolution, Biodiversité (ISYEB), Sorbonne Université - SU, MNHN, CNRS, EPHE-PSL, 57 rue Cuvier, CP48, 75005 Paris, France; Meise Botanic Garden, Nieuwelaan 38, 1860 Meise, Belgium
Meise Botanic Garden, Nieuwelaan 38, 1860 Meise, Belgium; Fédération Wallonie-Bruxelles, Service Général de l’Enseignement supérieur et de la Recherche scientifique, Bruxelles, Belgium
Institut de Systématique, Evolution, Biodiversité (ISYEB), Sorbonne Université - SU, MNHN, CNRS, EPHE-PSL, 57 rue Cuvier, CP48, 75005 Paris, France
William L. Brown Center, Missouri Botanical Garden, St. Louis, Missouri, U.S.A.
conservation status endemism scorpioid cyme Eudicots

Abstract

Dombeya scorpioides, a new endemic species of Dombeya (Malvaceae) from southeastern Madagascar, is described. Morphological analysis places this species within Dombeya section Xeropetalum as defined by Arènes. The species is distinguished by its unique biparous cyme, unusually elongated with mostly scorpioid terminal units. It is further differentiated from other species with similar narrow leaves by its hispid ovary with well-developed stellate hairs. Due to its restricted geographic distribution and past and future threats to its habitat, this species should be classified as Endangered according to IUCN Red List Criteria.

References

  1. Applequist, W.L. (2009) Two new species of Dombeya (Malvaceae) from Madagascar. Novon 19 (3): 289–294. https://doi.org/10.3417/2007183
  2. Applequist, W.L. (2014) A taxonomic revision of Dombeya sect. Decastemon (Malvaceae). Annals of the Missouri Botanical Garden 99 (4): 553–619. https://doi.org/10.3417/2011113
  3. Arènes, J. (1958) Les Dombeya de Madagascar et des Comores. Candollea 16: 247–449. [https://www.e-periodica.ch/digbib/view?pid=can-002%3A1957%3A16#252]
  4. Arènes, J. (1959) 131e Familie. Sterculiacées: 18. Dombeya Cav. In: Humbert, H. (Ed.) Flore de Madagascar et des Comores. Typographie Firmin-Didot et Cie, Paris, pp. 189–520. https://doi.org/10.5962/bhl.title.6600
  5. Bachman, S. & Moat, J. (2012) GeoCAT – an open source tool for rapid Red List assessments. Botanical Gardens Conservation International Journal 9 (1): 11–13. [https://www.jstor.org/stable/24811237]
  6. Baillon, M.H. (1885) Liste des plantes de Madagascar. Bulletin Mensuel de la Société Linnéenne de Paris 1: 491–496. [https://www.biodiversitylibrary.org/page/11016974#page/86/mode/1up]
  7. Baker, J.G. (1884) Further contributions to the flora of Central Madagascar. Journal of the Linnean Society, Botany 21: 317–406. [https://www.biodiversitylibrary.org/page/176859#page/325/mode/1up]
  8. Bayer, C. & Kubitzki, K. (2003) Malvaceae. In: Bayer, C. & Kubitzki, K. (Eds.) Flowering Plants. Dicotyledons: Malvales, Capparales and non-betalain Caryophyllales. Springer, Berlin & Heidelberg, pp. 225–311. https://doi.org/10.1007/978-3-662-07255-4_28
  9. Beentje, H. (2016) The Kew Plant Glossary: an illustrated dictionary of plant terms. Second Edition. Kew Publishing, Royal Botanical Gardens, Kew, Richmond, 184 pp.
  10. Cailliaud, F. (1826) Centurie de Plantes d’Afrique du Voyage à Méroé. Imprimerie Royale, Paris, 112 pp. [https://bibdigital.rjb.csic.es/records/item/12120-centurie-de-plantes-d-afrique]
  11. Cavanilles, A.J. (1786) Genera elucidanda in tertia Dissertatione. Monadelphiae classis dissertations decem, tertia dissertatio botanica 2 (App. 2). Apud F.A. Didot, Paris, 3 pp. [https://bibdigital.rjb.csic.es/viewer/9759/?offset=#page=70&viewer=picture&o=bookmark&n=0&q=]
  12. Dorr, L.J. & Wurdack, K.J. (2021) Indo-Asian Eriolaena expanded to include two Malagasy genera, and other generic realignments based on molecular phylogenetics of Dombeyoideae (Malvaceae). Taxon 70 (1): 99–126. https://doi.org/10.1002/tax.12370
  13. Goodman, S.M., Raherilalao, M.J. & Wohlhauser, S. (2018) The terrestrial protected areas of Madagascar: Their history, description, and biota. Association Vahatra & The University of Chicago Press, Chicago, 1716 pp. in 3 volumes.
  14. Grant, V. (1981) Plant Speciation, ed. 2. Columbia University Press, New York, 563 pp. https://doi.org/10.7312/gran92318
  15. Hochreutiner, B.P.G. (1926) Monographie des Dombeya de Madagascar. Candollea 3: 1–120. [https://www.e-periodica.ch/digbib/view?pid=can-002%3A1926%3A3#14]
  16. Jourdain Fievet, L. (2023) Morphologie et phylogénomique au service de la protection de la biodiversité : systématique de Dombeya section Dombeya (Malvaceae). Ecole Doctorale Sciences de la Nature et de l’Homme 227. Muséum National d’Histoire Naturelle, Paris and Meise Botanic Garden, Meise, 167 pp. [https://theses.hal.science/tel-04921343]
  17. IUCN. (2022) Guidelines for using the IUCN Red List Categories and Criteria, version 16. Prepared by the Standards and Petitions Committee. Available from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 10 September 2024)
  18. Le Péchon, T., Bégué, A., Buord, S., Dubuisson, J.-Y., Jhangeer-Khan, R., Jourdain-Fievet, L., Tatayah, V. & Skema, S. (2024) Friedmannodendron rodriguesiana, a new segregate of Dombeya Cav. (Dombeyoideae, Malvaceae), endemic to Rodrigues. Botany Letters 171 (4): 1–12. https://doi.org/10.1080/23818107.2024.2375733
  19. Planchon, J.E. (1850) Dombeya ameliae. Flore des Serres et des Jardins de l’Europe 6: 225–227. [https://www.biodiversitylibrary.org/item/88065#page/287/mode/1up]
  20. QGIS Development Team. (2019) QGIS Geographic Information System, version 3.10. Open Source Geospatial Foundation Project. Available from: http://qgis.osgeo.org (accessed 10 September 2025)
  21. Schumann, K. (1900) Sterculiaceae Africanae. In: Engler, A. (Ed.) Monographien Afrikanischer Pflanzen-Familien und-Gattungen, Vol. 5. W. Engelmann, Leipzig, pp. 1–140. [https://www.biodiversitylibrary.org/item/113589#page/3/mode/1up]
  22. Skema, C. (2012) Toward a new circumscription of Dombeya (Malvales: Dombeyaceae): A molecular phylogenetic and morphological study of Dombeya of Madagascar and a new segregate genus, Andringitra. Taxon 61 (3): 612–628. https://doi.org/10.1002/tax.613010
  23. Skema, C. (2014) Reevaluation of species delimitations in Dombeya sect. Hilsenbergia (Dombeyaceae). Systematic Botany 39 (2): 541–562. https://doi.org/10.1600/036364414X680717
  24. Thiers, B. (2024 [continuously updated]) Index Herbariorum. Part I: The herbaria of the world. New York Botanical Garden. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 22 September 2024)
  25. Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J, Price, M.J. & Smith, G.F. (Eds.) (2018) International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Regnum Vegetabile 159. Koeltz Botanical Books, Glashütten, 254 pp. https://doi.org/10.12705/Code.2018
  26. Vieilledent, G., Gardi, O., Grinand, C., Burren, C., Andriamanjato, M., Camara, C., Gardner, C.J., Glass, L., Rasolohery, A., Ratsimba, H.R., Gond, V. & Rakotoarijaona, J.R. (2016) Shapefile of Madagascar ecoregions. Dryad dataset from: Bioclimatic envelope models predict a decrease in tropical forest carbon stocks with climate change in Madagascar. Available from: https://doi.org/10.5061/dryad.9ph68 (accessed 10 September 2025)

How to Cite

Fievet, L.J., Pechon, T.L., Dubuisson, J.-Y. & Applequist, W. (2025) Dombeya scorpioides (Malvaceae: Dombeyoideae), a new species from southeastern Madagascar. Phytotaxa 704 (3): 232–238. https://doi.org/10.11646/phytotaxa.704.3.2