@article {72, title = {Colletoecema gabonensis, a third species of an unusual African genus of Rubiaceae}, journal = { Brittonia }, volume = {63}, year = {2011}, pages = {219}, chapter = {215}, abstract = {

As a result of ongoing studies of the Rubiaceae of Gabon, the new species
Colletoecema gabonensis is here described and illustrated. It is endemic to Gabon,
where it is the only species of the genus, and is so far only known from three collections
from the Ogoou\é-Lolo and Ngouni\é provinces. The new species is morphologically
intermediate between its two congeners, C. dewevrei (from Cameroon, Central
African Republic, Republic of the Congo, DR Congo, and Angola) and C. magna
(endemic to Cameroon). The new species agrees with C. dewevrei in having flowers
with exserted anthers and style, but differs in its sessile flowers and fruits. In the latter
characters, it resembles C. magna, from which it can be separated by its smaller fruits
and leaves, and by its different floral morphology. An IUCN conservation assessment
has been made and the species is provisionally assessed as Vulnerable, based on its
restricted area of occupancy and the small number of known locations

}, keywords = {Colletoecema, Gabon, IUCN conservation assessment, Rubiaceae, taxonomy}, author = {Dessein, Steven and Lachenaud, Olivier and Sonk{\'e}, Bonaventure} } @article {69, title = {Craterispermum parvifolium and C. robbrechtianum spp. nov. (Rubiaceae) from west central Africa}, journal = { Nordic Journal of Botany}, volume = {29}, year = {2011}, pages = {707}, chapter = {700}, abstract = {

Craterispermum parvifolium and C. robbrechtianum spp. nov. are described from the Lower Guinea Domain. Detailed
descriptions and distribution maps are provided for each species, their conservation status is assessed and their taxonomic
affinities are discussed. An identification key for the Craterispermum species of the Lower Guinea Domain is given.

}, author = {Taedoumg, Hermann and De Block, Petra and Hamon, Perla and Sonk{\'e}, Bonaventure} } @article {17, title = {Do plant families with contrasting functional traits show similar patterns of endemism? A case study with Central African Orchidaceae and Rubiaceae}, journal = {Biodiversity and Conservation}, volume = {20}, number = {7}, year = {2011}, pages = {1507-1531}, keywords = {Orchids Africa}, author = {Droissart, V. and Sonk{\'e}, B. and Hardy, O. J. and Simo, M. and Taedoumg, H. and Nguembou, K. C. and Stevart, T.} }