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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: 44
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.

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