Plant Ecology and Evolution 152(1): 93-98, doi: 10.5091/plecevo.2019.1574
Hypolytrum goetghebeurii (Cyperaceae), a curious new species from miombo woodlands in the Democratic Republic of the Congo
expand article infoPhilippe Thery‡, Marc Reynders§, Marc S.M. Sosef§
‡ 24 rue Védrines, 64000 Pau, France§ Meise Botanic Garden, Nieuwelaan 38, 1860 Meise, Belgium

Corresponding author: Philippe Thery ( philippethery@orange.fr )

© Philippe Thery, Marc Reynders, Marc S.M. Sosef.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Thery P, Reynders M, Sosef MS.M (2019) Hypolytrum goetghebeurii (Cyperaceae), a curious new species from miombo woodlands in the Democratic Republic of the Congo. Plant Ecology and Evolution 152(1): 93-98. https://doi.org/10.5091/plecevo.2019.1574
Open Access
Abstract

Background – The genus Hypolytrum is studied during the preparation of the Cyperaceae treatment in Flore d’Afrique centrale. It is kept separate from Mapania and its African members have been divided amongst three sections.

Methods – Herbarium material from BR and BRLU has been studied. A preliminary IUCN Red List assessment is performed according to the IUCN Guidelines and Criteria.

Results – The new species Hypolytrum goetghebeurii is described from miombo woodlands in the Democratic Republic of the Congo. It differs from other African species in the genus by forming thick tussocks, having narrow, rigid leaves and spicoids with three male flowers subtended by their floral bracts and a female flower with three stigmas. It occurs in seasonally dry areas with a regular fire regime and seems to be the only African species of that genus occupying such a dry habitat. It is named after the Cyperaceae specialist Prof. em. Dr. Paul Goetghebeur. Following the IUCN Red List criteria, the species is assessed as Vulnerable.

Keywords
botany, Central Africa, Cyperaceae, Democratic Republic of the Congo, Hypolytrum, new species, systematics, taxonomy

References

  • Alves M.V., Thomas W.W., Das Graças Lapa Wanderley M. (2002) New Species of Hypolytrum Rich. (Cyperaceae) from the Neotropics. Brittonia 54: 124–135.
  • Alves M.V., Das Graças Lapa Wanderley M., Thomas W.W. (2015) Hypolytrum (Cyperaceae): taxonomic and nomenclatural notes, geographical distribution and conservation status of Neotropical species. Rodriguésia 66: 379–392. https://doi.org/10.1590/2175-7860201566208
  • 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. 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
  • Barbosa L.A.G. (1970) Carta fitogeográfica de Angola. Luanda, Instituto de Investigação Científica de Angola.
  • Browning J., Goetghebeur P. (2017) Sedge (Cyperaceae) genera of Africa and Madagascar. Leicestershire, Troubador (Matador).
  • Devred R. (1958) La végétation forestière du Congo belge et du Ruanda-Urundi. Bulletin de la Société Royale Forestière de Belgique 65(6): 409–468.
  • Droissart V., Dauby G., Hardy O.J., Deblauwe V., Harris D.J., Janssens S., Mackinder B.A., Blach-Overgaard A., Sonké B., Sosef M.S.M., Stévart T., Svenning J.-C., Wieringa J.J., Couvreur T.L.P. (2018) Beyond trees: biogeographical regionalization of tropical Africa. Journal of Biogeography 45: 1153–1167. https://doi.org/10.1111/jbi.13190
  • Duvigneaud P. (1958) La végétation du Katanga et de ses sols métallifères. Communication n°1. La végétation du Katanga et de ses sols métallifères. Bulletin de la Société Royale de Botanique de belgique 90: 127–286.
  • Friends of the Earth Netherlands/Milieudefensie, SOMO and the GoodElectronics Network (2015) Katanga Calling. Amsterdam, Ruparo. Available from https://www.somo.nl/nl/katanga-calling/ [accessed 12 Feb. 2019].
  • IUCN Standards and Petitions Subcommittee (2014) Guidelines for Using the IUCN Red List Categories and Criteria. Version 11. Standards and Petitions Subcommittee. Gland, IUCN.
  • IUCN (2019) The IUCN Red List of Threatened Species. Version 2018-2. Available from http://www.iucnredlist.org [accessed 12 Feb. 2019].
  • Koyama T. (1970) The American species of the genus Hypolytrum (Cyperaceae). Darwiniana 16: 49–92.
  • Lye K.A. (2011) The genus Hypolytrum (Cyperaceae) included in Mapania. Lidia 7(4): 85–94.
  • Malaisse F., Schaijes M., D’Outreligne C. (2016) Copper-Cobalt Flora of Upper Katanga and Copperbelt: Field Guide. Gembloux, Presses agronomiques de Gembloux. Available from http://hdl.handle.net/2268/194087 [accessed 12 Feb. 2019].
  • Muasya A.M., Simpson D.A., Verboom G.A., Goetghebeur P., Naczi R.F.C., Chase M.W., Smets E. (2009) Phylogeny of Cyperaceae based on DNA sequence data: current progress and future prospects. The Botanical Review 75: 2–21. https://doi.org/10.1007/s12229-008-9019-3
  • Prychid C.J., Bruhl J. (2013) Floral ontogeny and gene protein localization rules out euanthial interpretation of reproductive units in Lepironia (Cyperaceae, Mapanioideae, Chrysitricheae). Annals of Botany 112: 161–177. https://doi.org/10.1093/aob/mct111
  • QGIS Development Team (2019) QGIS Geographic Information System. Open Source Geospatial Foundation Project. Available from https://www.qgis.org [accessed 13 Feb. 2019].
  • Saad L., Parmentier I., Colinet G., Malaisse F., Faucon M.-P., Meerts M., Mahy G. (2012) Investigating the vegetation-soil relationships on the copper-cobalt rock outcrops of Katanga (D. R. Congo), an essential step in a biodiversity conservation plan. Restoration Ecology 20: 405–415. https://doi.org/10.1111/j.1526-100X.2011.00786.x
  • Semmouri I., Bauters K., Léveillé-Bourret É., Starr J.R., Goetghebeur P., Larridon I. (2018) Phylogeny and systematics of Cyperaceae, the evolution and importance of embryo morphology. The Botanical Review: 1–39. https://doi.org/10.1007/s12229-018-9202-0
  • Simpson D.A. (1992) A revision of the genus Mapania (Cyperaceae). Richmond, Royal Botanic Gardens, Kew.
  • Simpson D.A., Furness C.A., Hodkinson T.R., Muasya A.M., Chase M.W. (2003) Phylogenetic relationships in Cyperaceae subfamily Mapanioideae inferred from pollen and plastid DNA sequence data. American Journal of Botany 90: 1071–1086. https://doi.org/10.3732/ajb.90.7.1071
  • 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/ih/ [accessed 1 Dec. 2018].
  • 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. Glashütten: Koeltz Botanical Books. https://doi.org/10.12705/Code.2018
  • Vogel E.F. de (1987) Manual of herbarium taxonomy: theory and practice. Jakarta, UNESCO.