Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 587 No. 2: 14 March 2023
Type: Article
Published: 2023-03-14
DOI: 10.11646/phytotaxa.587.2.3
Page range: 136-148
Abstract views: 52
PDF downloaded: 3

Synoptic Revision of the exindusiate species of Dryopteris (Dryopteridaceae) from Central Africa (Democratic Republic of the Congo, Rwanda, Burundi) with description of Dryopteris schizopaleata sp. nov. from Rwanda

Institute for Integrated Natural Sciences–Biology, University of Koblenz, Universitätsstraße 1, 56070 Koblenz, Germany.
Botanical Gardens Bonn University, Meckenheimer Allee 171, D-51115 Bonn, Germany.
Albertine Rift endemics taxonomy Dryopteris schizopaleata sp. nov. D. manniana D. ruwenzoriensis Pteridophytes

Abstract

A synopsis of the exindusiate species of Dryopteris occurring in the area of the Flore d’Afrique Centrale (D.R.Congo, Rwanda, Burundi) is provided. Three species occur in the area. Dryopteris schizopaleata sp. nov., a new species from Rwanda, is described here. It differs from all other Dryopteris species occurring in the area in the stipe scales that are broadly ovate, with a fimbriate apex, divided into long uniseriate, irregular fissures and without glands. D. manniana is recorded for D.R.Congo, Rwanda and Burundi. D. ruwenzoriensis occurs in the Ruwenzori mountains in Eastern D.R.Congo and Western Uganda, and the Virunga Volcanoes in Eastern D.R.Congo and Rwanda. A key to the three species is provided.

References

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Adanson, M. (1763) <em>Familles des plantes</em> 2. Paris, Vincent. [i], (1)–(24), [i–iii], 640 pp. https://doi.org/10.5962/bhl.title.271</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Braun, A. (1841) Bemerkungen über die Flora von Abyssinien. <em>Flora</em> 24, 2 (1841): 705–707.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Christensen, C. (1905) <em>Index Filicum sive Enumeratio omnium generum specierumque Filicum et Hydropteridum ab anno 1753 ad finem annum 1905 descriptorum</em>. Copenhagen, Hagerup, I–LIX, 745 pp. https://doi.org/10.5962/bhl.title.402</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Fischer, E. &amp; Lobin, W. (2023a) Synoptic Revision of Aspleniaceae (<em>Asplenium</em>, <em>Hymenasplenium</em>) of Rwanda. <em>Phytotaxa </em>(submitted).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Fischer, E. &amp; Lobin, W. (2023b) Synoptic Revision of <em>Diplazium </em>(Athyriaceae) in Rwanda with description of <em>Diplazium cyamudongoense</em> <em>sp. nov. Phytotaxa</em> (submitted).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Fischer, E. &amp; Lobin, W. (in prep.) Checklist of Lycopodiopsida (Clubmosses and Quillworts) and Polypodiopsida (Ferns) of Rwanda. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Fraser-Jenkins, C.R. (1986) A classification of the genus <em>Dryopteris</em> (Pteridophyta: Dryopteridaceae). <em>Bulletin of the British Museum (Natural History)</em>, Botany 14 (3): 183–218.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Fraser-Jenkins, C. (1996) <em>D. wallichiana</em> ssp. <em>reichsteinii</em> Fraser-Jenkins. <em>In</em>: Widén, C.-J., Fraser-Jenkins, C., Reichstein, T., Gibby, M. &amp; Sarvela, J. (1996) Phloroglucinol derivatives in <em>Dryopteris</em> sect. Fibrillosae and related taxa (Pteridophyta, Dryopteridaceae). <em>Annales Botanici Fennici</em> 33: 69–100.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hooker, W.J. (1863) <em>Species filicum </em>4 (15/16)<em>.</em> Pamplin, London, pp. 161–292, pls 250–280.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN (2012) IUCN Red List Categories and Criteria. Version 3.1. Second edition. Available from: https://www.iucn.org/content/iucnred-list-categories-and-criteria-version-31-second-edition (accessed 30 Oct. 2022). </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN (2022) Guidelines for using the IUCN Red List Categories and Criteria. Version 15. Available from: https://www.iucnredlist.org/resources/redlistguidelines (accessed 30 Oct. 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kew Plants of the World online (2022) Available from: https://powo.science.kew.org (accessed 22 Jan. 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kuhn, F.A.M. (1868) <em>Filices africanae</em>. Leipzig, Engelmann. 233 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kuntze, O. (1891) <em>Revisio generum plantarum</em> 2. Leipzig, Felix. pp. 375–1011. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mangambu Mokoso, J. de D., Diggelen, R. v., Mwanga Mwanga, J.C., Ntahobavuka, H. &amp; Robbrecht, E. (2013) Espèces nouvellement signalées pour la flore ptéridologique de la République Démocratique du Congo. <em>International Journal of Biological and Chemical Sciences </em>7 (1): 107–124. https://doi.org/10.4314/ijbcs.v7i1.10</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Pichi Sermolli, R.E.G. (1984) A new species of <em>Dryopteris</em> from tropical East Africa. <em>Webbia </em>37 (2): 329–339. https://doi.org/10.1080/00837792.1984.10670282</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Pichi Sermolli, R.E.G. (1985) A contribution to the knowledge of the pteridophyta of Rwanda, Burundi, and Kivu (Zaïre) II. <em>Bulletin du Jardin botanique National de Belgique / Bulletin van de Nationale Plantentuin van België</em> 55 (1/2): 123–206. https://doi.org/10.2307/3668014</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Roux, J.P. (2002) A new species of <em>Dryopteris</em> (Dryopteridaceae: Pteropsida) from East Africa. <em>Kew Bulletin</em> 57: 735–739. https://doi.org/10.2307/4111008</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Roux, J.P. (2003) A new <em>Dryopteris</em> (Pteropsida: Dryopteridaceae) species from south-central Africa. <em>Botanical Journal of the Linnean Society</em> 142 (2): 237–242. https://doi.org/10.1046/j.1095-8339.2003.00146.x</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Roux, J.P. (2004a) <em>Dryopteris filipaleata</em> (Pteropsida: Dryopteridaceae), a new species from tropical East Africa. <em>Bothalia</em> 34 (1): 27–30. https://doi.org/10.4102/abc.v34i1.404</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Roux, J.P. (2004b) Three new species of <em>Dryopteris</em> (Pteropsida: Dryopteridaceae) from West Africa. <em>Kew Bulletin</em> 59 (2): 207–217. https://doi.org/10.2307/4115851</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Roux, J.P. (2004c) A re-evaluation of the <em>Dryopteris fadenii</em> (Pteropsida: Dryopteridaceae) complex, with the new species <em>D. rodolfii</em>. <em>Webbia</em> 59 (1): 133–147. https://doi.org/10.1080/00837792.2004.10670765</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Roux, J.P. (2005) [2004]. New species in the fern genus <em>Dryopteris </em>(Dryopteridaceae) from the islands in the Gulf of Guinea (West Africa). <em>Systematics and Biodiversity</em> 2 (2): 163–168. https://doi.org/10.1017/S1477200004001471</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Roux, J.P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. <em>Strelitzia</em> 23: 296 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Roux, J.P. (2012) A revision of the fern genus <em>Dryopteris</em> (Dryopteridaceae) in sub-Saharan Africa. <em>Phytotaxa</em> 70: 1–118. https://doi.org/10.11646/phytotaxa.70.1.1</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tardieu-Blot, M.-L. (1948) Fougères nouvelles d’Afrique récoltées par Mr Schnell. <em>Notulae Systematicae (Paris)</em> 13 (4): 370–373.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Thiers, B. (2022) [continuously updated] <em>Index herbariorum. A global directory of public herbaria and associated staff.</em> New York Botanical Garden’s Virtual Herbarium. Available from http://sweetgum.nybg.org/science/ih/ (accessed 22 Jan. 2022).</span></span></span></p>