@article {5613, title = {Comparative development of aseptate and septate anthers of Annonaceae}, journal = {American Journal of BotanyAmerican Journal of Botany}, volume = {90}, number = {6}, year = {2003}, month = {Jun}, pages = {832-848}, abstract = {We compared anther development in 13 genera and 15 species of Annonaceae to document the nature and development of anther septa. In aseptate anthers, all sporogenous initials proceed to sporogenesis and meiosis. In septate anthers, a small number of sporogenous initials, in a discontinuous distribution pattern, differentiate into sporogenous cells; the remaining initials become sterile and form cellular septa that partition each anther lobe into multiple sporangial chambers. In species where the septum is 1-2 cell layers thick, the entire septum becomes tapetal (T-type septa) and breaks down before anther dehiscence. In species in which the septum is three or more cell layers thick, only the layer in direct contact with the sporogenous cells becomes tapetal, and the remaining cells become parenchymatous (P-type septa). These thicker P-type septa are sometimes visible in dehisced anthers. Both types are homologous in ontogeny and are highly associated with the production of compound pollen. We propose that the evolution of anther septation in Annonaceae was mainly driven by the requirement for highly efficient nutrient and physical support to the development of large, compound pollen units.}, author = {Tsou, C. H. and Johnson, D. M.} } @article {5595, title = {Pollen structure, tetrad cohesion and pollen-connecting threads in Pseuduvaria (Annonaceae)}, journal = {Botanical Journal of the Linnean SocietyBotanical Journal of the Linnean Society}, volume = {143}, number = {1}, year = {2003}, pages = {69-78}, author = {Su, Yvonne C. F. and Saunders, Richard M. K.} } @article {5564, title = {Morphological and functional flower characteristics of New and Old World Annonaceae with respect to their mode of pollination}, journal = {TaxonTaxon}, volume = {52}, number = {4}, year = {2003}, pages = {701-718}, abstract = {The Annonaceae show a broader flower biological radiation than originally thought, with flowers being pollinated not only by beetles, but also by thrips, flies and even bees. The majority of species have hermaphroditic protogynous flowers. Species with white or yellowish-white, small, delicate, day-active flowers, may be pollinated either solely by thrips, or by thrips and small beetles (e.g., species of Bocageopsis, Oxandra, Xylopia). Several of these thrips-pollinated species have stamens with an elongated, tongue-like connective. Pollination by flies is not well documented for American species, notwithstanding it appears to be more common in Old World species, e.g., in the genus Pseuduvaria. The mitriform flowers exhale an unpleasant smell, produce nectar in purple-colored petal glands and have a sapromyiophilous syndrome. Flies enter the flower center through large openings between the inner petals. Beetle-pollinated Annonaceae have flowers with comparatively thick and, often, fleshy petals, which, during anthesis frequently form a pollination chamber with the petals inclining over the flower center. The stamens usually have peltate connective shields, probably a device for protection against voracious beetles. Some cantharophilous species have flowers which are day-active while others are night-active. When they are in their pistillate phase, the beetles are attracted by characteristic odor components. They enter the pollination chamber and usually remain in the interior of the flower until the flower has changed to its staminate phase, when pollen is shed and afterwards petals and stamens detach. Two lines of cantharophilous Annonaceae are recognizable on the basis of present knowledge. Species with smaller and more delicate flowers are pollinated by small beetles (Nitidulidae, Curculionidae, Chrysomelidae and Staphylinidae), whereas species with large, more robust flowers in the Neotropics are pollinated by large beetles of the family Scarabaeidae, subfamily Dynastinae. Some species of the cantharophilous Annonaceae, especially the large-flowered ones, but also some species with smaller flowers, produce heat during anthesis (thermogenesis). Food bodies, developed on the adaxial surfaces or sides of the petals, provide unique nourishment possibilities for beetles when they stay inside the flowers during the pistillate phase. In the staminate stage of the flower, after pollen is shed, beetles also feed on pollen. Apparently, no dynastid-flower relationship has evolved in Asia and Australia. Pollination by bees was discovered recently in Unonopsis guatterioides in Amazonia and Uvaria concava in North Queensland: the first by scent-collecting euglossine males and the second by pollen-collecting Meliponinae. The general trends in morphological/functional floral characteristics in the family are discussed in a presumptive phylogenetic context.}, author = {Silberbauer-Gottsberger, I and Gottsberger, G. and Webber, A.} } @article {5530, title = {A synopsis of Goniothalamus species (Annonaceae) in Peninsular Malaysia, with a description of new species}, journal = {Botanical Journal of the Linnean SocietyBotanical Journal of the Linnean Society}, volume = {142}, year = {2003}, note = {074}, pages = {321-339}, author = {Saunders, R. M. K.} } @inbook {5435, title = {Annonaceae}, booktitle = {Flora do Distrito Federal, Brasil 3}, year = {2003}, note = {010, 030, 055, 080, 167, 206}, pages = {21-48}, publisher = {Embrapa Recursos Gen{\'e}ticos e Biotechnologia}, organization = {Embrapa Recursos Gen{\'e}ticos e Biotechnologia}, address = {Bras{\'\i}lia, DF}, author = {Pontes, A. F. and R. de Mello-Silva}, editor = {Cavalcanti, T.B. and A.E. Ramos} } @article {5361, title = {The genus Miliusa (Annonaceae) in the Austro-Malesian area}, journal = {BlumeaBlumea}, volume = {48}, year = {2003}, note = {110}, pages = {421-462}, author = {Mols, J. B. and P. J. A. Ke{\ss}ler} } @article {5363, title = {The genus Millusa (Annonaceae) in the Austro-Malesian area}, journal = {BlumeaBlumea}, volume = {48}, number = {3}, year = {2003}, pages = {421-462}, isbn = {0006-5196}, author = {Mols, J. B. and Kessler, P. J. A.} } @article {5290, title = {Duguetia (Annonaceae)}, journal = {Flora Neotropica, MonographFlora Neotropica, Monograph}, volume = {88}, year = {2003}, note = {055, 135}, pages = {1-274}, author = {Maas, P. J. M. and L. Y. T.h. Westra and L. W. Chatrou and et al.,} } @article {5286, title = {Revision of the neotropical genus Pseudoxandra (Annonaceae)}, journal = {BlumeaBlumea}, volume = {48}, year = {2003}, note = {157}, pages = {201-259}, author = {Maas, P. J. M. and L. Y.T.h. Westra} } @article {5202, title = {The genus Uvariopsis (Annonaceae) in tropical Africa with a recombination and one new species from Cameroon.}, journal = {NovonNovon}, volume = {13}, number = {4}, year = {2003}, pages = {443-449}, author = {Kenfack, D. and Goseline, G. and Gereau, R.E. and Schatz, G.E.} } @article {5195, title = {A new species of Uvaria (Annonaceae) from West Africa}, journal = {BlumeaBlumea}, volume = {48}, year = {2003}, note = {198}, pages = {463-464}, author = {Jongkind, C. C. H.} } @article {259, title = {A comparative ethnobotany of the Mbuti and Efe hunter-gatherers in the Uturi forest, Democratic Republic of Congo}, journal = {African Study Monographs}, volume = {24}, year = {2003}, pages = {1-168}, author = {Terashima, H. and Ichikawa, M.} } @article {86, title = {The genus Uvariopsis (Annonaceae) in tropical Africa with a recombination and one new species from Cameroon.}, journal = {Novon}, volume = {13}, number = {4}, year = {2003}, pages = {443-449}, author = {Kenfack, D. and Goseline, G. and Gereau, R.E. and Schatz, G.E.} }