Novitates Gabonenses 93: a fresh look at Podostemaceae in Gabon following recent inventories, with a new combination for Ledermanniella nicolasii Author Bidault, Ehoarn https://orcid.org/0000-0001-5029-8069 Missouri Botanical Garden, Africa & Madagascar Department, St. Louis, Missouri, USA & Institut de Systematique, Evolution, et Biodiversite (ISYEB), Unite Mixte de Recherche 7205, Centre National de la Recherche Scientifique / Museum National d'Histoire Naturelle / Ecole Pratique des Hautes Etudes, Universite Pierre et Marie Curie, Sorbonne Universites, Paris, France ehoarn.bidault@mobot.org Author Boupoya, Archange https://orcid.org/0000-0002-8926-8737 Institut de Recherche en Ecologie Tropicale (IRET), Libreville, Gabon & Herbier National du Gabon, Libreville, Gabon Author Ikabanga, Davy U. Laboratoire d'Ecophysiologie et de Biodiversite Vegetale, Departement de Biologie, Faculte des Sciences, Universite des Sciences et Techniques de Masuku (USTM), Franceville, Gabon Author Nguimbit, Igor Laboratoire d'Ecophysiologie et de Biodiversite Vegetale, Departement de Biologie, Faculte des Sciences, Universite des Sciences et Techniques de Masuku (USTM), Franceville, Gabon Author Texier, Nicolas https://orcid.org/0000-0002-4045-992X Missouri Botanical Garden, Africa & Madagascar Department, St. Louis, Missouri, USA & Evolutionary Biology and Ecology Unit, Faculte des Sciences, Universite Libre de Bruxelles, Brussels, Belgium Author Rutishauser, Rolf Herbarium et Bibliotheque de Botanique africaine, Universite Libre de Bruxelles, Brussels, Belgium Author Mesterhazy, Attila https://orcid.org/0000-0001-7952-5990 Department of Systematic and Evolutionary Botany, University of Zurich, Switzerland Author Stevart, Tariq https://orcid.org/0000-0002-6212-0361 Missouri Botanical Garden, Africa & Madagascar Department, St. Louis, Missouri, USA & Evolutionary Biology and Ecology Unit, Faculte des Sciences, Universite Libre de Bruxelles, Brussels, Belgium & Centre for Ecological Research, Wetland Ecology Research Group, Debrecen, Hungary text Plant Ecology and Evolution 2023 2023-03-01 156 1 59 84 http://dx.doi.org/10.5091/plecevo.96359 journal article http://dx.doi.org/10.5091/plecevo.96359 2032-3921-1-59 A3301095CCAD56078E5F4CA25FE7E738 Macropodiella garrettii (C.H.Wright) C.Cusset (Cusset 1978: 302) Distribution. Liberia, Sierra Leone, Guinea, Ivory Coast. This species is endemic to West Africa, where it seems common and present in multiple watersheds. Habitat and ecology. Falls in rivers from ca 30 to 300 m wide, 20-520 m in elevation. It appears to be quite common, but not abundant when encountered. It was recorded on medium-sized to large rivers with fast-flowing current. Flowers and fruits were collected in January, February, October, and November. In Liberia, it has been found in the vicinity of Ledermanniella aloides and Tristicha trifaria . Notes. Macropodiella garrettii was not mentioned as being present in Gabon in the available literature ( Sosef et al. 2006 ; Ghogue 2018 ). Nevertheless, one collection from this country is available at P ( Thollon 846 ), made in the Ogooue river at the Lope rapids. This collection was identified as M. garrettii by Cusset in 1976, but this information was surprisingly not reproduced in her study of the genus Macropodiella published two years later ( Cusset 1978 ). Recent examination of this material revealed that it does not belong to this taxon, differing from it by having two stigma lobes (vs cristate, occasionally papillose) and a cylindrical capsule (vs laterally flattened). Thollon 846 very likely belongs to L. bifurcata . Macropodiella garrettii is thus excluded from the flora of Gabon.