, L-PMJD and TLPC led the writing

L. Sbj, G. D. , A. Bam, J. Vd, . Msms et al.,

A. Orcid and . Blach,

L. P. Thomas and . Couvreur,

, Gilles Dauby

J. Olivier and . Hardy,

D. J. Harris,

B. Steven,

B. A. Mackinder,

M. S. ,

J. Svenning,

J. J. Wieringa,

A. Antonelli, W. D. Kissling, S. Flantua, M. A. Berm-udez, A. Mulch et al., Geological and climatic influences on mountain biodiversity, Nature Geoscience, vol.11, pp.718-725, 2018.

C. D. Bell, D. E. Soltis, and P. S. Soltis, The age of the angiosperms: a molecular timescale without a clock, Evolution, vol.59, pp.1245-1258, 2005.

C. D. Bell, D. E. Soltis, and P. S. Soltis, The age and diversification of the angiosperms re-revisited, American Journal of Botany, vol.97, pp.1296-1303, 2010.

C. Bitencourt and A. Rapini, Centres of endemism in the espinhac ßo range: identifying cradles and museums of Asclepiadoideae (Apocynaceae), Systematics and Biodiversity, vol.11, pp.525-536, 2013.

B. Boyle, N. Hopkins, Z. Lu, R. Garay, J. A. Mozzherin et al., The taxonomic name resolution service: an online tool for automated standardization of plant names, BMC Bioinformatics, vol.14, p.16, 2013.

J. Brenan, Some aspects of the phytogeography of tropical Africa, Annals of the Missouri Botanical Garden, vol.65, pp.437-478, 1978.

I. Bruchmann and C. Hobohm, Plant and vegetation. Endemism in vascular plants, pp.51-68, 2014.

N. D. Burgess, T. M. Butynski, N. J. Cordeiro, N. H. Doggart, J. Fjelds-a et al., The biological importance of the Eastern Arc Mountains of Tanzania and Kenya, Biological Conservation, vol.134, pp.209-231, 2007.

T. Couvreur, Odd man out: why are there fewer plant species in African rain forests?, Plant Systematics and Evolution, vol.301, pp.1299-1313, 2015.

R. M. Cowling and R. L. Pressey, Rapid plant diversification: planning for an evolutionary future, Proceedings of the National Academy of Sciences, vol.98, pp.5452-5457, 2001.

M. D. Crisp, S. Laffan, H. P. Linder, and A. Monro, Endemism in the Australian flora, Journal of Biogeography, vol.28, pp.183-198, 2001.

G. Dauby, R. Zaiss, A. Overgaard, L. Catarino, T. Damen et al., RAINBIO: a mega-database of tropical African vascular plants distributions, PhytoKeys, vol.74, pp.1-18, 2016.
URL : https://hal.archives-ouvertes.fr/hal-02096772

D. Block, P. Razafimandimbison, S. G. Janssens, S. Ochoterena, H. Robbrecht et al., Molecular phylogenetics and generic assessment in the tribe Pavetteae, Taxon, vol.64, pp.79-95, 2015.

A. W. Diamond and A. C. Hamilton, The distribution of forest passerine birds and Quaternary climatic change in tropical Africa, Journal of Zoology, vol.191, pp.379-402, 1980.

D. Dimitrov, D. Nogu-es-bravo, and N. Scharff, Why do tropical mountains support exceptionally high biodiversity? The eastern arc mountains and the drivers of Saintpaulia diversity, PLoS ONE, vol.7, p.48908, 2012.

V. Droissart, G. Dauby, O. J. Hardy, V. Deblauwe, D. J. Harris et al., Beyond trees: Biogeographical regionalization of tropical Africa, Journal of Biogeography, vol.45, pp.1153-1167, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01883440

D. P. Faith, Conservation evaluation and phylogenetic diversity, Biological Conservation, vol.61, pp.1-10, 1992.

D. P. Faith, S. Magall-on, A. P. Hendry, E. Conti, T. Yahara et al., Evosystem services: an evolutionary perspective on the links between biodiversity and human well-being, Current Opinion in Environmental Sustainability, vol.2, pp.66-74, 2010.

A. Fayolle, M. D. Swaine, J. Bastin, N. Bourland, J. A. Comiskey et al., Patterns of tree species composition across tropical African forests, Journal of Biogeography, vol.41, pp.2320-2331, 2014.

P. Ferreira and I. I. Boldrini, Potential reflection of distinct ecological units in plant endemism categories, Conservation Biology, vol.25, pp.672-679, 2011.

J. Fjelds, Geographical patterns for relict and young species of birds in Africa and South America and implications for conservation priorities, Biodiversity & Conservation, vol.3, pp.207-226, 1994.

J. Fjelds-a and R. Bowie, New perspectives on the origin and diversification of Africa's forest avifauna, African Journal of Ecology, vol.46, pp.235-247, 2008.

J. Fjelds-a, R. Bowie, and C. Rahbek, The role of mountain ranges in the diversification of birds, Evolution, and Systematics, vol.43, pp.249-265, 2012.

J. Fjelds-a and J. C. Lovett, Geographical patterns of old and young species in African forest biota: the significance of specific montane areas as evolutionary centres, Biodiversity & Conservation, vol.6, pp.325-346, 1997.

J. Fjelds-a and C. Rahbek, Diversification of tanagers, a species rich bird group, from lowlands to montane regions of South America, Integrative and Comparative Biology, vol.46, pp.72-81, 2006.

F. Forest, K. A. Crandall, M. W. Chase, and D. P. Faith, Phylogeny, extinction and conservation: embracing uncertainties in a time of urgency, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.370, 2015.

F. Forest, R. Grenyer, M. Rouget, T. J. Davies, R. M. Cowling et al., Preserving the evolutionary potential of floras in biodiversity hotspots, Nature, vol.445, pp.757-760, 2007.

C. Grey-wilson, Impatiens of Africa, 1980.

F. Guillocheau, B. Simon, G. Baby, P. Bessin, C. Robin et al., Planation surfaces as a record of mantle dynamics: the case example of Africa, Gondwana Research, vol.53, pp.82-98, 2018.
URL : https://hal.archives-ouvertes.fr/insu-01534695

G. Hewitt, The genetic legacy of the Quaternary ice ages, Nature, vol.405, pp.907-913, 2000.

C. E. Hinchliff and S. A. Smith, Some limitations of public sequence data for phylogenetic inference (in plants), PLoS ONE, vol.9, p.98986, 2014.

C. Hoorn, V. Mosbrugger, A. Mulch, and A. Antonelli, Biodiversity from mountain building, Nature Geoscience, vol.6, p.154, 2013.

C. Hoorn, F. P. Wesselingh, H. Ter-steege, M. A. Bermudez, A. Mora et al., Amazonia through time: Andean uplift, climate change, landscape evolution, and biodiversity, Science, vol.330, pp.927-931, 2010.

C. Hughes and R. Eastwood, Island radiation on a continental scale: Exceptional rates of plant diversification after uplift of the Andes, Proceedings of the National Academy of Sciences, vol.103, pp.10334-10339, 2006.

A. M. Humphreys, R. Govaerts, S. Z. Ficinski, N. Lughadha, E. Vorontsova et al., Global dataset shows geography and life form predict modern plant extinction and rediscovery, Nature Ecology & Evolution, vol.3, pp.1043-1047, 2019.

J. W. Huntley and G. Voelker, Cryptic diversity in Afro-tropical lowland forests: The systematics and biogeography of the avian genus Bleda, Molecular Phylogenetics and Evolution, vol.99, pp.297-308, 2016.

. Iucn, Guidelines for applying protected area management categories, 2008.

B. F. Jacobs, Palaeobotanical studies from tropical Africa: relevance to the evolution of forest, woodland and savannah biomes, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.359, pp.1573-1583, 2004.

S. Janssens, T. Couvreur, A. Mertens, G. Dauby, L. Dagallier et al., A large-scale species level dated angiosperm phylogeny for evolutionary and ecological analyses, 2019.

W. Jetz, C. Rahbek, and R. K. Colwell, The coincidence of rarity and richness and the potential signature of history in centres of endemism, Ecology Letters, vol.7, pp.1180-1191, 2004.

K. Katoh, K. Misawa, K. Kuma, and T. Miyata, MAFFT: a novel method for rapid multiple sequence alignment based on fast Fourier transform, Nucleic Acids Research, vol.30, pp.3059-3066, 2002.

G. Kier, H. Kreft, T. M. Lee, W. Jetz, P. L. Ibisch et al., A global assessment of endemism and species richness across island and mainland regions, Proceedings of the National Academy of Sciences, vol.106, pp.9322-9327, 2009.

W. D. Kissling, W. L. Eiserhardt, W. J. Baker, F. Borchsenius, T. Couvreur et al., Cenozoic imprints on the phylogenetic structure of palm species assemblages worldwide, Proceedings of the National Academy of Sciences, vol.109, pp.7379-7384, 2012.

R. R. Klopper, L. Gautier, C. Chatelain, G. F. Smith, and R. Spichiger, Floristics of the angiosperm flora of Sub-Saharan Africa: an analysis of the African Plant Checklist and Database, Taxon, vol.56, pp.201-208, 2007.

C. K?-orner, W. Jetz, J. Paulsen, D. Payne, K. M. Rudmann-maurer et al., A global inventory of mountains for bio-geographical applications, Alpine Botany, vol.127, pp.1-15, 2017.

C. K?-orner, J. Paulsen, and E. M. Spehn, A definition of mountains and their bioclimatic belts for global comparisons of biodiversity data, Alpine Botany, vol.121, p.73, 2011.

N. Kraft, B. G. Baldwin, and D. D. Ackerly, Range size, taxon age and hotspots of neoendemism in the California flora: California plant neoendemism, Diversity and Distributions, vol.16, pp.403-413, 2010.

A. R. Kruckeberg and D. Rabinowitz, Biological aspects of endemism in higher plants, Annual Review of Ecology and Systematics, vol.16, pp.447-479, 1985.

W. K?-uper, J. H. Sommer, J. C. Lovett, J. Mutke, H. P. Linder et al., Africa's hotspots of biodiversity redefined, Annals of the Missouri Botanical Garden, vol.91, pp.525-535, 2004.

S. W. Laffan, E. Lubarsky, and D. F. Rosauer, Biodiverse, a tool for the spatial analysis of biological and related diversity, Ecography, vol.33, pp.643-647, 2010.

H. P. Linder, Plant diversity and endemism in sub-Saharan tropical Africa, Journal of Biogeography, vol.28, pp.169-182, 2001.

H. P. Linder, The evolution of African plant diversity, Frontiers in Ecology and Evolution, vol.2, pp.1-14, 2014.

H. P. Linder, H. M. De-klerk, J. Born, N. D. Burgess, J. Fjelds-a et al., The partitioning of Africa: statistically defined biogeographical regions in sub-Saharan Africa: African regionalization, Journal of Biogeography, vol.39, pp.1189-1205, 2012.

S. R. Loarie, P. B. Duffy, H. Hamilton, G. P. Asner, C. B. Field et al., The velocity of climate change, Nature, vol.462, pp.1052-1055, 2009.

J. L-opez-pujol, F. Zhang, H. Sun, Y. Ge, and S. , Centres of plant endemism in China: places for survival or for speciation?, Journal of Biogeography, vol.38, pp.1267-1280, 2011.

J. C. Lovett, R. Marchant, J. Taplin, and W. K?, The oldest rainforests in Africa: Stability or resilience for survival and diversity, Phylogeny and conservation, pp.198-229, 2005.

J. C. Lovett, R. S. Taplin, and J. , Patterns of plant diversity in Africa south of the Sahara and their implications for conservation management, Biodiversity and Conservation, vol.9, pp.37-46, 2000.

G. M. Mace, J. L. Gittleman, and A. Purvis, Preserving the tree of life, Science, vol.300, pp.1707-1709, 2003.

S. Magall-on, S. Acevedo, L. L. Reyes, and T. Hern-andez-hern, A metacalibrated time-tree documents the early rise of flowering plant phylogenetic diversity, New Phytologist, vol.207, pp.437-453, 2015.

J. Maley, The African rain forest: main characteristics of changes in vegetation and climate from the Upper Cretaceous to the Quaternary, Proceedings of the Royal Society of Edinburgh, Section B, vol.104, pp.31-73, 1996.

Y. Malhi, S. Adu-bredu, R. A. Asare, S. L. Lewis, and P. Mayaux, African rainforests: past, present and future, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.368, 2013.

J. A. Mcneely, K. R. Miller, W. Reid, R. A. Mittermeier, and T. B. Werner, International Union for Conservation of Nature and Natural Resources; World Resources Institute; Conservation International, 1990.

V. Merckx, K. P. Hendriks, K. K. Beentjes, C. B. Mennes, L. E. Becking et al., Evolution of endemism on a young tropical mountain, Nature, vol.524, pp.347-350, 2015.

B. D. Mishler, N. Knerr, C. E. Gonz-alez-orozco, A. H. Thornhill, S. W. Laffan et al., Phylogenetic measures of biodiversity and neo-and paleo-endemism in Australian Acacia, Nature Communications, vol.5, p.4473, 2014.

M. J. Moore, C. D. Bell, P. S. Soltis, and D. E. Soltis, Using plastid genome-scale data to resolve enigmatic relationships among basal angiosperms, Proceedings of the National Academy of Sciences, vol.104, pp.19363-19368, 2007.

C. Moritz, V. Funk, and A. K. Sakai, Strategies to protect biological diversity and the evolutionary processes that sustain it, Systematic Biology, vol.51, pp.238-254, 2002.

A. M. Muasya, D. A. Simpson, G. A. Verboom, P. Goetghebeur, R. Naczi et al., Phylogeny of cyperaceae based on DNA sequence data: current progress and future prospects, Botanical Review, vol.75, pp.2-21, 2009.

A. N. Muellner-riehl, Mountains as evolutionary arenas: patterns, emerging approaches, paradigm shifts, and their implications for plant phylogeographic research in the Tibeto-Himalayan region, Frontiers in Plant Science, vol.10, p.195, 2019.

J. Murienne, L. R. Benavides, L. Prendini, G. Hormiga, and G. Giribet, Forest refugia in Western and Central Africa as 'museums' of Mesozoic biodiversity, Biology Letters, vol.9, 2013.

N. Myers, R. A. Mittermeier, C. G. Mittermeier, D. Fonseca, G. A. et al., Biodiversity hotspots for conservation priorities, Nature, vol.403, pp.853-858, 2000.

J. C. Nekola, Paleorefugia and neorefugia: the influence of colonization history on community pattern and process, Ecology, vol.80, pp.2459-2473, 1999.

D. M. Olson, E. Dinerstein, E. D. Wikramanayake, N. D. Burgess, G. Powell et al., Terrestrial ecoregions of the world: a new map of life on earth, BioScience, vol.51, p.933, 2001.

D. L. Peterson, E. G. Schreiner, and N. M. Buckingham, Gradients, vegetation and climate: spatial and temporal dynamics in the Olympic Mountains, U.S.A. Global Ecology and Biogeography Letters, vol.6, p.7, 1997.

V. Plana, Mechanisms and tempo of evolution in the African Guineo-Congolian rainforest, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.359, pp.1585-1594, 2004.

V. Plana, A. Gascoigne, L. L. Forrest, D. Harris, and R. T. Pennington, Pleistocene and pre-Pleistocene Begonia speciation in Africa, Molecular Phylogenetics and Evolution, vol.31, pp.449-461, 2004.

A. J. Plumptre, T. Davenport, M. Behangana, R. Kityo, G. Eilu et al., The biodiversity of the Albertine Rift, Biological Conservation, vol.134, pp.178-194, 2007.

L. J. Pollock, D. F. Rosauer, A. H. Thornhill, H. Kujala, M. D. Crisp et al., Phylogenetic diversity meets conservation policy: small areas are key to preserving eucalypt lineages, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.370, 2015.

L. J. Pollock, W. Thuiller, and W. Jetz, Large conservation gains possible for global biodiversity facets, Nature, vol.546, pp.141-144, 2017.

H. Qian and Y. Jin, An updated megaphylogeny of plants, a tool for generating plant phylogenies and an analysis of phylogenetic community structure, Journal of Plant Ecology, vol.9, pp.233-239, 2016.

, The Authors New Phytologist Ó, 2019.

C. Rahbek, M. K. Borregaard, A. Antonelli, R. K. Colwell, B. G. Holt et al., Building mountain biodiversity: Geological and evolutionary processes, Science, vol.365, pp.1114-1119, 2019.

E. Robbrecht, Geography of African Rubiaceae with reference to glacial rain forest refuges, The biodiversity of African plants: Proceedings XIVth AETFAT Congress 22-27, pp.564-581, 1994.

D. Rosauer, S. W. Laffan, M. D. Crisp, S. C. Donnellan, and L. G. Cook, Phylogenetic endemism: a new approach for identifying geographical concentrations of evolutionary history, Molecular Ecology, vol.18, pp.4061-4072, 2009.

M. S. Roy, Recent diversification in African greenbuls (Pycnonotidae: Andropadus) supports a montane speciation model, Proceedings of the Royal Society of London B: Biological Sciences, vol.264, pp.1337-1344, 1997.

R. A. Scherson, A. H. Thornhill, R. Urbina-casanova, W. A. Freyman, P. A. Pliscoff et al., Spatial phylogenetics of the vascular flora of Chile, Molecular Phylogenetics and Evolution, vol.112, pp.88-95, 2017.

O. Schwery, R. E. Onstein, Y. Bouchenak-khelladi, Y. Xing, R. J. Carter et al., As old as the mountains: the radiations of the Ericaceae, New Phytologist, vol.207, pp.355-367, 2014.

W. Sechrest, T. M. Brooks, G. A. Da-fonseca, W. R. Konstant, R. A. Mittermeier et al., Hotspots and the conservation of evolutionary history, Proceedings of the National Academy of Sciences, vol.99, pp.2067-2071, 2002.

A. R. Simoes and G. Staples, Dissolution of Convolvulaceae tribe Merremieae and a new classification of the constituent genera, Botanical Journal of the Linnean Society, vol.183, pp.561-586, 2017.

S. A. Smith and J. W. Brown, Constructing a broadly inclusive seed plant phylogeny, American Journal of Botany, vol.105, pp.1-13, 2018.

S. A. Smith and B. C. O'meara, treePL: divergence time estimation using penalized likelihood for large phylogenies, Bioinformatics, vol.28, pp.2689-2690, 2012.

P. S. Soltis, D. E. Soltis, V. Savolainen, P. R. Crane, and T. G. Barraclough, Rate heterogeneity among lineages of tracheophytes: Integration of molecular and fossil data and evidence for molecular living fossils, Proceedings of the National Academy of Sciences, vol.99, pp.4430-4435, 2002.

M. Sosef, Begonias and African rain forest refuges: general aspects and recent progress, The biodiversity of African plants: Proceedings XIVth AETFAT Congress 22-27, pp.602-611, 1994.

M. Sosef, G. Dauby, A. Blach-overgaard, X. Van-der-burgt, L. Catarino et al., Exploring the floristic diversity of tropical Africa, BMC Biology, vol.15, pp.1-23, 2017.
URL : https://hal.archives-ouvertes.fr/hal-01600946

A. Stamatakis, RAxML-VI-HPC: maximum likelihood-based phylogenetic analyses with thousands of taxa and mixed models, Bioinformatics, vol.22, pp.2688-2690, 2006.

J. Stropp, R. J. Ladle, A. Malhado, J. Hortal, J. Gaffuri et al., Mapping ignorance: 300 years of collecting flowering plants in Africa, Global Ecology and Biogeography, vol.25, pp.1085-1096, 2016.

N. G. Swenson, B. J. Enquist, J. Thompson, and J. K. Zimmerman, The influence of spatial and size scale on phylogenetic relatedness in tropical forest communities, Ecology, vol.88, pp.1770-1780, 2007.

A. H. Thornhill, B. G. Baldwin, W. A. Freyman, S. Nosratinia, M. M. Kling et al., Spatial phylogenetics of the native California flora, BMC Biology, vol.15, p.96, 2017.

A. H. Thornhill, B. D. Mishler, N. J. Knerr, C. E. Gonz-alez-orozco, C. M. Costion et al., Continental-scale spatial phylogenetics of Australian angiosperms provides insights into ecology, evolution and conservation, Journal of Biogeography, vol.43, pp.2085-2098, 2016.

K. A. Tolley, C. R. Tilbury, G. J. Measey, M. Menegon, W. R. Branch et al., Ancient forest fragmentation or recent radiation? Testing refugial speciation models in chameleons within an African biodiversity hotspot: Palaeoendemic chameleon lineages in East Africa, Journal of Biogeography, vol.38, pp.1748-1760, 2011.

P. C. Tzedakis, I. T. Lawson, M. R. Frogley, G. M. Hewitt, and R. C. Preece, Buffered tree population changes in a quaternary refugium: evolutionary implications, Science, vol.297, pp.2044-2047, 2002.

G. Voelker, R. K. Outlaw, and R. Bowie, Pliocene forest dynamics as a primary driver of African bird speciation, Global Ecology and Biogeography, vol.19, pp.111-121, 2010.

S. K. Wasser and J. C. Lovett, Introduction to the biogeography and ecology of the rain forests of eastern Africa, Biogeography and Ecology of the rain forests of Eastern Africa, 1993.

C. O. Webb, Exploring the phylogenetic structure of ecological communities: an example for rain forest trees, The American Naturalist, vol.156, pp.145-155, 2000.

C. O. Webb, D. D. Ackerly, M. A. Mcpeek, and M. J. Donoghue, Phylogenies and community ecology, Annual Review of Ecology and Systematics, vol.33, pp.475-505, 2002.

J. Wen, J. Zhang, Z. Nie, Y. Zhong, and H. Sun, Evolutionary diversifications of plants on the Qinghai-Tibetan Plateau, Frontiers in Genetics, vol.5, p.4, 2014.

F. White, The vegetation of Africa: a descriptive memoir to accompany the Unesco/AETFAT/UNSO vegetation map of Africa, 1983.