00933nas a2200169 4500008004100000020002700041245008900068210006900157300001200226490000700238520038200245100002400627700001800651700002100669700002100690856005200711 2002 eng d a0075-5974 (ISSN print)00aA new species of Tricalysia A. Rich. ex DC. (Rubiaceae) from western Cameroon0 anew species of iTricalysiai A Rich ex DC Rubiaceae from western  a681-6860 v573 a

Tricalysia lejolyana is described as a new species from the Banyang Mbo Wildlife Sanctuary in western Cameroon and its conservation status assessed. Its diagnostic characteristics are elucidated in relation to other taxa of the genus, in particular, to the species of the 'T. atherura' group of Tricalysia subg. Tricalysia, sect. Tricalysia, in which it falls.

1 aSonké, Bonaventure1 aCheek, Martin1 aD, Mercy, Nambou1 aRobbrecht, Elmar uhttps://rubiaceae-africa.myspecies.info/node/4401754nas a2200169 4500008004100000020001400041245013400055210006900189260000800258300001200266490000800278520117900286100002401465700002201489700002101511856005201532 2012 eng d a0024-407400aA reconsideration of the Lower Guinean species of Sericanthe (Rubiaceae, Coffeeae), with four new species from Cameroon and Gabon0 areconsideration of the Lower Guinean species of Sericanthe Rubia cJul a530-5540 v1693 a

The genus Sericanthe was established and its species were revised 30 years ago by one of the authors. Intensive recent botanical collecting in Lower Guinea (mainly southern Cameroon, Equatorial Guinea and Gabon) has made a reconsideration of species in this area necessary. Revision of the newly collected Lower Guinean herbarium specimens of Sericanthe (twice as many as were available at the time of the first revision) has brought four new species to light, namely S. gabonensis and S. mpassa from Gabon, S. lowryana from Cameroon and S. rabia from Cameroon and Gabon. Distributional data are much augmented, and distributional maps of all species from the area are provided. Four species were reported to be newly recorded for at least one country. The occurrence of the novelties in the main diversity centre of the genus is discussed in the context of the chorology of the entire genus Sericanthe. A first estimation of the conservation status for the new species is given. A synopsis of the genus Sericanthe in Lower Guinea with a taxonomic key is provided. (c) 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 169, 530554.

1 aSonké, Bonaventure1 aTaedoumg, Hermann1 aRobbrecht, Elmar uhttps://rubiaceae-africa.myspecies.info/node/57