New records for the flora of Cameroon, including a new species of Psychotria (Rubiaceae) and range extensions for some rare species Lachenaud O. auteur aut IRD Droissart Vincent auteur aut IRD Dessein S. auteur aut IRD Stevart T. auteur aut IRD Simo M. auteur aut IRD Lemaire B. auteur aut IRD Taedoumg H. auteur aut IRD Sonke B. auteur aut IRD text journalArticle eng text/pdf born digital access Background - The inventory of Cameroon's flora is far from complete and additional work is needed to document the country's extremely rich flora, and thus enhance its conservation. In this framework, botanical exploration was conducted between 2007 and 2011 in various regions of Cameroon and resulted in the discovery of several new national records and new species. Methods - Normal practices of herbarium taxonomy have been applied. For the endemic or subendemic species, a preliminary IUCN conservation has been proposed using the IUCN criteria. Results - A total of twelve taxa are recorded as new for the flora of Cameroon. Significant range extensions are reported for eight restricted-range species. A new species, Psychotria yaoundensis O.Lachenaud, endemic to Cameroon and only know from two rocky hills in the surroundings of Yaounde, is described and illustrated. Additions to the flora of Equatorial Guinea (five species), Nigeria, Ivory Coast and the Democratic Republic of Congo (one species each) are also reported. Psychotria moliwensis and Vangueriopsis gossweileri are synonymised under P fernandopoensis and V rubiginosa, respectively. Conclusion - Many areas within Cameroon remain botanically poorly explored. Our exploration highlights the importance of the Rumpi Hills, Tchabal Mbabo, and the rocky hills around Yaounde for plant conservation. Our data will help conservationists in determining areas highly valuable for conservation. specialized Cameroon Central Africa flora IUCN Orchidaceae Psychotria Rubiaceae Rumpi Hills Tchabal Mbabo Yaounde CAMEROUN 076 082 Plant Ecology and Evolution 146 1 121-133 2013 2032-3913 https://www.documentation.ird.fr/hor/PAR00010354 10.5091/plecevo.2013.632 2032-3913 [F B010060762] https://www.documentation.ird.fr/hor/PAR00010354 https://www.documentation.ird.fr/intranet/publi/2013/04/010060762.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2013-05-02 2017-08-23 PAR00010354 fre