@inbook {1304, title = {Tertia Dissertatio Botanica}, booktitle = {Monadelphiae classis dissertationes decem}, volume = {3}, year = {1787}, pages = {127, t. 41, fig. 1}, edition = {Firmin-Didot et Cie}, keywords = {Dombeya, Dombeya umbellata}, url = {http://www.biodiversitylibrary.org/item/97564$\#$page/239/mode/1up}, author = {Cavanilles, A J} } @inbook {1303, title = {Tertia Dissertatio Botanica}, booktitle = {Monadelphiae classis dissertationes decem}, volume = {3}, year = {1787}, pages = {125, t. 40, fig. 1}, edition = {Firmin-Didot et Cie}, keywords = {Dombeya, Dombeya punctata}, url = {http://www.biodiversitylibrary.org/item/97564$\#$page/237/mode/1up}, author = {Cavanilles, A J} } @inbook {1302, title = {Tertia Dissertatio Botanica}, booktitle = {Monadelphiae classis dissertationes decem}, volume = {3}, year = {1787}, pages = {128, t. 42, fig. 2}, edition = {Firmin-Didot et Cie}, keywords = {Dombeya, Dombeya ferruginea, Dombeya ferruginea ssp. ferruginea}, url = {http://www.biodiversitylibrary.org/item/97564$\#$page/240/mode/1up}, author = {Cavanilles, A J} } @mastersthesis {1299, title = {Syst{\'e}matique des Dombeyoideae (Malvaceae, ex-Sterculiaceae) des Mascareignes : approches morphologique et mol{\'e}culaire}, volume = {PhD}, year = {2009}, school = {Universit{\'e} Pierre et Marie-Curie}, address = {Paris}, abstract = {

La sous-famille des Dombeyoideae (Malvaceae, \« ex-Sterculiaceae \») pr\ésente dans l\’archipel des Mascareignes (\îles de la R\éunion, Maurice et Rodrigues) une diversit\é sp\écifique importante (4 genres, 23 esp\èces dont 22 sont end\émiques) et des traits d\’histoire de vie originaux, telle la dio\écie. Notre objectif a \ét\é d\’\étudier les relations de parent\é entre les taxons mascarins et les repr\ésentants africains, malgaches et asiatiques de cette sous-famille. Des caract\ères morphologiques et mol\éculaires ont \ét\é utilis\és ind\épendamment et conjointement pour reconstruire des sc\énarios phylog\én\étiques. Les analyses montrent que les Dombeyoideae des Mascareignes sont polyphyl\étiques et regroup\és au sein de quatre clades ayant chacun pour origine un unique \év\ènement de dispersion/colonisation de Madagascar vers l\’archipel. L\’inf\érence de l\’\évolution des syst\èmes de reproduction montre que la dio\écie d\ériverait de l\’hermaphrodisme. Aux Mascareignes, la s\éparation des sexes se serait ainsi diff\érenci\ée au moins trois fois de fa\çon convergente.

}, author = {Le P{\'e}chon, Timoth{\'e}e} } @article {1298, title = {Flower size dimorphism in diclinous plants native to La R{\'e}union Island}, journal = {Plant Systematics and Evolution}, volume = {240}, year = {2003}, pages = {163-173}, abstract = {

Although many diclinous plants have a flower size dimorphism, the causes and ecological correlates of dimorphism in flower size remain poorly understood. In this paper we quantify the frequency and distribution of flower size dimorphism in the native flora of La R\éunion Island. The frequency of flower size dimorphism is lower than in a previous global study suggesting that the dimorphism may limit colonisation success. Flower size dimorphism is significantly more frequent in endemic taxa compared to indigenous taxa, a trend that is particularly evident at the species level, due to the large number of species with male flowers bigger than female flowers and is more common in species-rich lineages. These results suggest that flower size dimorphism may be associated with species divergence. The direction of dimorphism varies between dioecious and monoecious species, suggesting that the mechanisms acting on flower size variation differ in species with these different sexual systems.

}, issn = {0378-2697}, doi = {10.1007/s00606-003-0011-4}, url = {http://link.springer.com/article/10.1007/s00606-003-0011-4}, author = {Humeau, Laurence and Pailler, T and Thompson, J D} } @article {1295, title = {Variation in the breeding system of two sympatric Dombeya species on La R{\'e}union island}, journal = {Plant Systematics and Evolution}, volume = {218}, year = {1999}, pages = {77-87}, author = {Humeau, Laurence and Pailler, T and Thompson, J D} } @article {1294, title = {Cryptic dioecy and leaky dioecy in endemic species of Dombeya (Sterculiaceae) on La R{\'e}union}, journal = {American Journal of Botany}, volume = {86}, year = {1999}, pages = {1437-1447}, url = {http://www.amjbot.org/content/86/10/1437.long}, author = {Humeau, Laurence and Pailler, T and Thompson, J D} } @article {1292, title = {Les~Dombeya~des~{\^\i}les~des~Mascareignes}, journal = {M{\'e}moire~de~l{\textquoteright}Institut~Scientifique~de Madagascar, S{\'e}rie B, Biologie V{\'e}g{\'e}tale}, volume = {9}, year = {1959}, pages = {189-216}, author = {Ar{\`e}nes, J} } @article {1291, title = {Sterculiac{\'e}es et Lecythidac{\'e}es nouvelles aux Mascareignes}, journal = {Adansonia}, volume = {20}, year = {1981}, pages = {439-449}, author = {Friedmann, Francis} } @book {1288, title = {The genus Dombeya (Sterculiaceae) in continental Africa}, year = {1991}, pages = {184}, publisher = {National Botanic Garden of Belgium}, organization = {National Botanic Garden of Belgium}, edition = {Opera Botanica Belgica}, address = {Meise}, keywords = {Africa, Dombeya, Sterculiaceae}, author = {Seyani, J H} } @mastersthesis {1286, title = {Ecologie et {\'e}volution de la dio{\'e}cie et du dimorphisme sexuel de la taille des fleurs chez les Dombeya (Sterculiac{\'e}es) end{\'e}miques de la R{\'e}union}, volume = {PhD}, year = {1999}, school = {Universit{\'e} de La R{\'e}union}, address = {Saint-Denis}, abstract = {

Les forts taux d\&$\#$39;esp\èces dio\ïques sur les \îles ont longtemps fascin\é les biologistes. Or le fonctionnement de la dio\écie en milieu insulaire a \ét\é peu abord\é. Les variations dans l\&$\#$39;expression de la dio\écie et du dimorphisme sexuel de la taille des fleurs sont aujourd\&$\#$39;hui examin\és dans l\&$\#$39;archipel des Mascareignes. A la r\éunion, les esp\èces unisexu\ées du genre \"Dombeya\" (sterculiac\ées) sont dio\ïques cryptiques mais pr\ésentent une variabilit\é dans l\&$\#$39;expression de la dio\écie. Certaines esp\èces strictement dio\ïques constituent de grandes populations en altitude alors que les esp\èces partiellement dio\ïques forment de petites populations \à basse altitude. Par ailleurs, l\&$\#$39;hybridation entre esp\èces strictement dio\ïques et partiellement dio\ïques semble engendrer des taxons hermaphrodites autocompatibles. Ces r\ésultats demandent confirmation par une \étude mol\éculaire plus pouss\ée, mais l\&$\#$39;hybridation en milieu insulaire semble \être un processus \évolutif important dans ce genre. Nos r\ésultats montrent que le dimorphisme sexuel de la taille des fleurs de la flore unisexu\ée indig\ène de la R\éunion est un ph\énom\ène largement r\épandu. Le biais observ\é est souvent en faveur des individus m\âles, ce qui peut \être corr\él\é \à la zoogamie, fr\équente sur cette \île. Le dimorphisme est plus abondant chez les esp\èces end\émiques que chez les taxons indig\ènes et est variable entre les esp\èces apparent\ées. Un mod\èle allom\étrique est propos\é pour illustrer ces variations au sein du genre \"Dombeya\". Cette th\èse apporte les connaissances de base sur la biologie du genre \"Dombeya\" \à la R\éunion dont certaines esp\èces constituent les \él\éments cl\és des for\êts primaires et d\&$\#$39;autres sont des esp\èces rares des milieux fragment\és.

}, keywords = {Dimorphisme sexuel, dio{\'e}cie, Dombeya, hybridation, Iles oc{\'e}aniques, La R{\'e}union, Oc{\'e}an Indien, Sterculiaceae, Taille des fleurs}, url = {http://tel.archives-ouvertes.fr/tel-00488723/en/}, author = {Humeau, Laurence} } @inbook {1284, title = {Sterculiaceae}, booktitle = {Flore des Mascareignes, 51. Malvac{\'e}es {\`a} 62. Oxalidac{\'e}es}, volume = {53}, year = {1987}, pages = {1{\textendash}50}, edition = {MSIRI {\textendash} ORSTOM {\textendash} Royal Botanical Gardens}, address = {Port-Louis, Paris, London}, keywords = {Astyria, Dombeya, Dombeyoideae, Ruizia, Trochetia}, issn = {2-7099-1402-6}, author = {Friedmann, Francis} } @article {1282, title = {Dombeya sevathianii (Malvaceae) : A new critically endangered species endemic to Mauritius (Indian Ocean)}, journal = {Phytotaxa}, volume = {24}, year = {2011}, pages = {1-10}, abstract = {

Dombeya sevathianii, a new endemic species from Mauritius, is described and illustrated. Based on its morphology, D. sevathianii belongs to the section Assonia as defined by Ar\ènes and is closely related to D. populnea, endemic to La R\éunion and Mauritius. These affinities are confirmed by a previous molecular study. The morphological diagnostic features for D. sevathianii are the cupuliform and entire epicalyx, and the absence of staminodes within the androecium. Given its known restricted distribution and small population, the species should be considered Critically Endangered (CR) as per the Red List Criteria of the International Union for the Conservation of Nature.

}, keywords = {Assonia, breeding system, conservation, island, IUCN, Mascarenes}, issn = {ISSN 1179-3155}, url = {http://www.mapress.com/phytotaxa/content/2011/pt00024.htm}, author = {Le P{\'e}chon, Timoth{\'e}e and Baider, Claudia and Haevermans, Agathe and Dubuisson, Jean-Yves} }