01958nas a2200181 4500008004100000245017500041210006900216300001200285490000800297520118800305100001801493700002001511700002401531700002901555700002401584700002301608856014501631 2016 eng d00aSynoptic revision of the genus Cyrtorchis Schltr. (Angraecinae, Orchidaceae) in Central Africa, with the description of a new species restricted to submontane vegetation.0 aSynoptic revision of the genus Cyrtorchis Schltr Angraecinae Orc a165-1860 v2673 a

As a preliminary step to the taxonomic revision of the genus Cyrtorchis, a synoptic revision of the species occurring in Central
Africa was undertaken. Based on a detailed examination of 1,039 herbarium specimens, including nomenclatural types,
we have recognized 14 species in Central Africa (one of which is divided into two subspecies), including one new species
that the study brought to light, described here as Cyrtorchis submontana. The new species closely resembles C. guillaumetii
and C. brownii in general aspect, but differs from them in having thinner, small elliptic leaves and shorter, fewer-flowered,
more lax inflorescences with shorter bracts. The species is restricted to submontane vegetation of Central Africa and is assessed
as Endangered following the IUCN Red List Categories and Criteria. Cyrtorchis latibracteata and C. subcylindrifolia
are lectotypified, and the latter is placed as a synonym under C. henriquesiana. Many new records are reported, and for each
taxon the distribution, habitat and ecology are given. An identification key for the Central African taxa is also provided.

1 aAzandi, Laura1 aStévart, Tariq1 aSonké, Bonaventure1 aSimo-Droissart, Murielle1 aAvana, Marie-Louise1 aDroissart, Vincent uhttps://rubiaceae-africa.myspecies.info/content/synoptic-revision-genus-cyrtorchis-schltr-angraecinae-orchidaceae-central-africa-description01945nas a2200181 4500008004100000245013700041210006900178300001300247490000800260520121100268100002901479700002401508700002301532700002401555700002201579700002001601856014201621 2016 eng d00aA taxonomic revision of Angraecum section Dolabrifolia (Orchidaceae, Angraecinae), with the description of a new species from Gabon.0 ataxonomic revision of Angraecum section Dolabrifolia Orchidaceae a81–1150 v2803 a

Despite a paucity of material available from continental Africa, previous morphological and molecular phylogenetic studies
have suggested that Angraecum, the largest genus of the angraecoid orchids, is polyphyletic. A recent study based on
broad sampling from the region confirmed the monophyly of section Dolabrifolia and a clear delimitation of four of its five
members, one of which represents a new species. Based on these results, a comprehensive taxonomic revision of Angraecum
sect. Dolabrifolia is presented here. It includes an identification key and a detailed description of each species, along with
color photographs, distribution maps, information on habitat and phenology, and a preliminary risk of extinction assessment
according to the IUCN Red List categories and criteria. Species richness in the section is highest in Atlantic Central Africa
and around the Albertine Rift. The new species, A. biteaui, is described and illustrated with line drawings. It most closely
resembles A. aporoides in general aspect but differs in both foliar and floral characters, and is only known from lowland
forests in Gabon.

1 aSimo-Droissart, Murielle1 aSonké, Bonaventure1 aDroissart, Vincent1 aGeerinck†, Daniel1 aLowry, Porter, P.1 aStévart, Tariq uhttps://rubiaceae-africa.myspecies.info/content/taxonomic-revision-angraecum-section-dolabrifolia-orchidaceae-angraecinae-description-new01475nas a2200217 4500008004100000245013600041210006900177260001600246490000600262520064600268653002400914653002900938653001700967653001600984100001801000700002301018700002701041700002001068700002401088856014501112 2014 eng d00aTwo new Sabicea (Rubiaceae) species from West Central Africa: Sabicea bullata and Sabicea urniformis. Phytotaxa 173 (4): 285–292.0 aTwo new Sabicea Rubiaceae species from West Central Africa Sabic c2 Jul. 20140 v43 a

Two distinctive new species of Sabicea (Rubiaceae) from the Lower Guinea region are described and illustrated. Sabicea bullata is easily recognized by its cordate leaves, which are strongly bullate above, and its sessile glomerulate inflorescences. It is restricted to the Rumpi Hills and Bakossi Mountains, in southwestern Cameroon. Sabicea urniformis, from southern Gabon and Congo-Brazzaville, is remarkable in having discolorous leaves and an urn-shaped involucre with bracts shortly connate at the base. Detailed descriptions and botanical drawings are provided, conservation status assessed and taxonomic affinities discussed.

10aConservation status10aIUCN Red List Categories10aLower Guinea10aRumpi Hills1 aZemagho, Lise1 aLachenaud, Olivier1 aLiede-Schumann, Sigrid1 aDeissen, Steven1 aSonké, Bonaventure uhttps://rubiaceae-africa.myspecies.info/content/two-new-sabicea-rubiaceae-species-west-central-africa-sabicea-bullata-and-sabicea-urniform-001446nas a2200241 4500008004100000245008900041210006900130260001700199490000600216520062800222653001300850653002900863653001000892653002800902653004200930653001000972653001300982653002700995100002401022700002001046700002301066856011501089 2015 eng d00aSynopsis of the genus Massularia (Rubiaceae) with a new species from Central Africa.0 aSynopsis of the genus Massularia Rubiaceae with a new species fr c25 Mar. 20150 v33 a

Based on a careful examination of more than 700 herbarium specimens and field investigation, a comprehensive revision of the genus Massularia is given. Massularia stevartiana, a new species from Central African Republic, Cameroon and Gabon is described and illustrated. The novelty is distinguished from M. acuminata, the only other species previously recognized in the genus, by its smaller leaves and flowers. For the two species recognized we provide a morphological description, distribution, habitat, phenology and IUCN conservation status assessment. Distribution maps and a dichotomous key are also provided

10aCameroun10aCentral African Republic10aGabon10aGuineo-Congolian Region10aIUCN Red List Categories and Criteria10ashrub10ataxonomy10atropical African flora1 aSonké, Bonaventure1 aBidault, Ehoarn1 aDroissart, Vincent uhttps://rubiaceae-africa.myspecies.info/content/synopsis-genus-massularia-rubiaceae-new-species-central-africa