@article {marshall_new_2016, title = {A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania}, journal = {PhytoKeys}, volume = {63}, year = {2016}, note = {00001}, pages = {63{\textendash}76}, doi = {10.3897/phytokeys.63.6262}, url = {http://phytokeys.pensoft.net/article_preview.php?id=6262}, author = {Marshall, A.R. and Couvreur, T.L.P. and Summers, A.L. and Deere, N.J. and Luke, W.R.Q. and Ndangalasi, Henry J. and Sparrow, Sue and Johnson, David M.} } @article {ghogue_taxonomic_2017, title = {Taxonomic revision of the African genera \textit{Brieya and \textit{Piptostigma (Annonaceae)}, journal = {Plant Ecology and Evolution}, volume = {150}, number = {2}, year = {2017}, note = {00000}, pages = {173{\textendash}216}, abstract = {Background and aims {\textendash} Annonaceae are an important family in tropical rain forests of Africa. Here, we present a revision of the west-central African genus Piptostigma of the tribe Piptostigmateae. Previous molecular phylogenetic analyses of Piptostigmateae have revealed that the genus as currently circumscribed is paraphyletic. The aims of the article are: (1) to clarify the generic delimitation of the genus Piptostigma, especially in relation to its current polyphyletic delimitation; (2) to provide a new updated key to the genera of tribe Piptostigmateae; and (3) to provide for the first time in over 100 years a complete taxonomic revision of genera Brieya and Piptostigma. Material and methods {\textendash} Normal practices of herbarium taxonomy were used for the morphological study of about 200 specimens from B, BR, BRLU, G, HBG, K, L, LBV, LISC, MO, P, U, US, WAG, YA and Z. We sequenced three plastid regions for 32 samples representing 26 ingroup (Piptostigmateae) and six outgroup species in order to explore the paraphyly of Piptostisma. The open source software QGis was used to generate the distribution maps of the species and their conservation status was obtained using the IUCN categories and criteria. Key results {\textendash} Molecular and morphological evidence support the reinstatement of the genus Brieya De Wild. Three keys are presented, one to the genera of Piptostigmateae and the two others to the species of Brieya and Piptostigma. A total of thirteen species are described for Piptostigma and two for the genus Brieya. Four new species are presented for the genus Piptostigma: P. macrophyllum, P. mayndongtsaeanum, P. goslineanum and P. submontanum.}, keywords = {Annonaceae, BRIEYA, PIPTOSTIGMA, taxonomy, TROPICAL AFRICA}, doi = {10.5091/plecevo.2017.1137}, author = {Ghogue, J.-P. and Sonk{\'e}, B. and Couvreur, T.L.P.} } @article {5741, title = {Taxonomic revision of the African genera Brieya and Piptostigma (Annonaceae)}, journal = {Plant Ecology and Evolution}, volume = {150}, year = {2017}, chapter = {173}, abstract = {

Background and aims \– Annonaceae are an important family in tropical rain forests of Africa. Here, we present a revision of the west-central African genus Piptostigma of the tribe Piptostigmateae. Previous molecular phylogenetic analyses of Piptostigmateae have revealed that the genus as currently circumscribed is paraphyletic. The aims of the article are: (1) to clarify the generic delimitation of the genus Piptostigma, especially in relation to its current polyphyletic delimitation; (2) to provide a new updated key to the genera of tribe Piptostigmateae; and (3) to provide for the first time in over 100 years a complete taxonomic revision of genera Brieya and Piptostigma.

Material and methods \– Normal practices of herbarium taxonomy were used for the morphological study of about 200 specimens from B, BR, BRLU, G, HBG, K, L, LBV, LISC, MO, P, U, US, WAG, YA and Z. We sequenced three plastid regions for 32 samples representing 26 ingroup (Piptostigmateae) and six outgroup species in order to explore the paraphyly of Piptostisma. The open source software QGis was used to generate the distribution maps of the species and their conservation status was obtained using the IUCN categories and criteria.

Key results \– Molecular and morphological evidence support the reinstatement of the genus Brieya De Wild. Three keys are presented, one to the genera of Piptostigmateae and the two others to the species of Brieya and Piptostigma. A total of thirteen species are described for Piptostigma and two for the genus Brieya. Four new species are presented for the genus Piptostigma: P. macrophyllum, P. mayndongtsaeanum, P. goslineanum and P. submontanum.

}, author = {Ghogue, J.-P. and Sonk{\'e}, B. and Couvreur, T.L.P.} } @article {4978, title = {Description of four new species of Monodora and Isolona (Annonaceae) from Tanzania and an overview of Tanzanian Annonaceae diversity.}, journal = {Adansonia (Paris)Adansonia (Paris)}, volume = {28}, number = {2}, year = {2006}, pages = {243-266}, author = {Couvreur, T.L.P. and Gereau, R.E. and Wieringa, J.J. and Richardson, J. E.} } @article {4983, title = {Evolution of syncarpy and other morphological characters in African Annonaceae: a posterior mapping approach}, journal = {Molecular Phylogenetics and EvolutionMolecular Phylogenetics and Evolution}, volume = {47}, number = {1}, year = {2008}, pages = {302-318}, author = {Couvreur, T.L.P. and Richardson, J. E. and Sosef, M.S.M. and Erkens, R. H. J. and Chatrou, L. W.} } @article {4923, title = {A revision of the African genus Hexalobus (Annonaceae)}, journal = {Systematic BotanySystematic Botany}, volume = {36}, number = {1}, year = {2011}, pages = {33-48}, author = {Botermans, M. and Sosef, M.S.M. and Chatrou, L. W. and Couvreur, T.L.P.} } @article {632, title = {Little ecological divergence associated with speciation in two African rain forest tree genera}, journal = {BMC Evolutionary Biology}, volume = {11}, year = {2011}, chapter = {296}, keywords = {African tropics, Annonaceae, Ecological niche modeling, ecological speciation, Isolona, Monodora, species level phylogeny}, doi = {10.1186/1471-2148-11-296}, url = {http://www.biomedcentral.com/1471-2148/11/296}, author = {Couvreur, T.L.P. and Porter-Morgan, H. and Wieringa, J.J. and Chatrou, L.W.} } @article {605, title = {Pollen morphology within the Monodora clade, a diverse group of five African Annonaceae genera}, journal = {Grana}, volume = {47}, number = {3}, year = {2008}, pages = {185-210}, author = {Couvreur, T.L.P. and Botermans, M. and van Heuven, B.J. and Van der Ham, R. W. J. M.} } @inbook {604, title = {The impact of climate change on the origin and future of East African rain forest trees}, booktitle = {Climate change and systematics}, year = {2011}, pages = {304-319}, publisher = {Cambridge University Press}, organization = {Cambridge University Press}, address = {Dublin}, author = {Chatrou, L.W. and Wieringa, J.J. and Couvreur, T.L.P.}, editor = {T. Hodkinson and M. Jones and J. Parnell and S. N{\'\i} Sheoin and S. Waldren} } @article {603, title = {A new species of Uvariopsis (Annonaceae), endemic to the Eastern Arc Mountains of Tanzania}, journal = {Blumea - Biodiversity, Evolution and Biogeography of Plants}, volume = {55}, number = {1}, year = {2010}, pages = {68-72}, abstract = {The Eastern Arc Mountains of Tanzania enclose high levels of plant and animal diversity with many yet to be described species. Here we describe a new species of the pan-tropical plant family Annonaceae named Uvariopsis lovettiana. It closely resembles another Eastern Arc endemic species, U. bisexualis, and its possible relationships with this species are discussed. A description with illustrations is presented as well as a suggestion for the IUCN conservation status of this new taxon.}, keywords = {Annonaceae, ENDEMISM, IUCN CONSERVATION STATUS, MONOECY, taxonomy, UDZUNGWA MOUNTAINS, USAMBARA MOUNTAINS}, url = {http://www.ingentaconnect.com/content/nhn/blumea/2010/00000055/00000001/art00008http://dx.doi.org/10.3767/000651910X499196}, author = {Couvreur, T.L.P. and Luke, W. R. Q.} } @article {55, title = {Evolution of syncarpy and other morphological characters in African Annonaceae: a posterior mapping approach}, journal = {Molecular Phylogenetics and Evolution}, volume = {47}, number = {1}, year = {2008}, pages = {302-318}, author = {Couvreur, T.L.P. and Richardson, J.E. and Sosef, M.S.M. and Erkens, R.H.J. and Chatrou, L.W.} } @article {56, title = {Molecular and morphological characterization of a new monotypic genus of Annonaceae, Mwasumbia, from Tanzania}, journal = {Systematic Botany}, volume = {34}, number = {2}, year = {2009}, pages = {266-276}, author = {Couvreur, T.L.P. and Van der Ham, R. W. J. M. and Mbele, Y.M. and Mbago, F. M. and Johnson, D. M.} } @article {45, title = {A revision of the African genus Hexalobus (Annonaceae)}, journal = {Systematic Botany}, volume = {36}, year = {2011}, month = {02/2011}, pages = {33-48}, type = {Taxonomic revision}, chapter = {33}, doi = {10.1600/036364411X553108}, url = {http://www.ingentaconnect.com/content/aspt/sb/2011/00000036/00000001/art00005}, author = {Botermans, M. and Sosef, M.S.M. and Chatrou, L.W. and Couvreur, T.L.P.} } @mastersthesis {49, title = {Revealing the secrets of African Annonaceae: Systematics, evolution and biogeography of the syncarpous genera Isolona and Monodora}, year = {2008}, pages = {1-296}, school = {D. Phil. Thesis, Wageningen University}, author = {Couvreur, T.L.P.} } @article {50, title = {Monograph of the syncarpous African genera Isolona and Monodora (Annonaceae)}, journal = {Systematic Botany Monographs}, volume = {87}, year = {2009}, pages = {1-150}, author = {Couvreur, T.L.P.} } @article {51, title = {Pollen morphology within the Monodora clade, a diverse group of five African Annonaceae genera}, journal = {Grana}, volume = {47}, number = {3}, year = {2008}, pages = {185-210}, author = {Couvreur, T.L.P. and Botermans, M. and van Heuven, B.J. and Van der Ham, R. W. J. M.} } @article {52, title = {Description of four new species of Monodora and Isolona (Annonaceae) from Tanzania and an overview of Tanzanian Annonaceae diversity.}, journal = {Adansonia (Paris)}, volume = {28}, number = {2}, year = {2006}, pages = {243-266}, author = {Couvreur, T.L.P. and Gereau, R.E. and Wieringa, J.J. and Richardson, J.E.} }