Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov. Author Fischer, Eberhard 0000-0001-7455-9833 Institute for Integrated Natural Sciences-Biology, University of Koblenz, Universitätsstrasse 1, 56070 Koblenz, Germany. efischer @ uni-koblenz. de; https: // orcid. org / 0000 - 0001 - 7455 - 9833 efischer@uni-koblenz.de Author Lobin, Wolfram Botanical Gardens Bonn University, Meckenheimer Allee 171, D- 51115 Bonn, Germany. text Phytotaxa 2023 2023-06-26 600 3 169 183 http://dx.doi.org/10.11646/phytotaxa.600.3.4 journal article 54702 10.11646/phytotaxa.600.3.4 2a1cbd1e-993f-4c7c-b5ed-abe41c0fe91e 1179-3163 8080860 Key to the Diplazium species in Rwanda 1. Fronds with gemmae at terminal pinnae; indusium attached all around the sorus (allantodioid)................................... D. humbertii - Fronds without gemmae; indusium attached to one side of sorus (asplenioid)..................................................................................2 2. Sori up to 6–8(11) per pinnule lobe; scales only at stipe base up to 18.4 mm long, margins without trichomes ................................ .............................................................................................................................................................. D. cyamudongoense , sp. nov. - Sori 11–23 per pinnule lobe; scales at stipe base very long, up to 20–32 mm , margins with stiff trichomes........... D. zanzibaricum