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On the first tachinid fly (Diptera, Tachinidae) carrying Asclepiadoideae pollinaria in the Neotropical Region
Nihei, Silvio Shigueo;Schwarz, Elizabeth de Araujo;
Revista Brasileira de Entomologia , 2011, DOI: 10.1590/S0085-56262011005000031
Abstract: on the first tachinid fly (diptera, tachinidae) carrying asclepiadoideae pollinaria in the neotropical region. this paper reports the first neotropical tachinidae species possibly associated to pollination of asclepiadoideae: a female of euacaulona sumichrasti townsend, 1908 (diptera, tachinidae, phasiinae, trichopodini) carrying pollinaria of gonolobus parviflorus decne., 1844 (apocynaceae, asclepiadoideae, asclepiadeae: gonolobinae) attached to its proboscis. the fly specimen was collected in paraguay, departamento canindeyú. the pollinarium is illustrated and described herein. this represents the first anthophilous record to g. parviflorus and to the genus.
Taxonomy "under construction": advances in the systematics of Apocynaceae, with emphasis on the Brazilian Asclepiadoideae
Rapini, Alessandro;
Rodriguésia , 2012, DOI: 10.1590/S2175-78602012000100007
Abstract: the apocynaceae comprise approximately 5,000 species and are widely distributed. the family belongs to the gentianales and can be easily recognized by the presence of latex and a style-head derived from the fusion of two carpels at the apex of the styles. the largest subfamily in apocynaceae is asclepiadoideae. treated as the asclepiadaceae for almost two centuries, it comprises about 3,000 species and is defined by stamens with bisporangiate anthers and pollen transferred in specialized units called pollinaria. since the 19th century, floristic studies and taxonomic monographs have significantly contributed to the taxonomy of brazilian asclepiadoideae. nevertheless, advances in understanding the internal relationships in the subfamily were not done until this millennium, with the popularization of phylogenetic studies based on molecular data and powerful computer analyses. advances in the systematics of apocynaceae have provided new interpretations on the morphological evolution and biogeography of the family and have led to important changes in its classification. nevertheless, several taxonomic rearrangements are still needed and it can be said that the taxonomy of apocynaceae is "under construction". in this article, the major taxonomic changes in the family are reviewed, with special attention given to the systematics of neotropical groups. a cladogram of the apocynaceae is presented, which highlights the phylogenetic position of the brazilian genera and their diversity in number of native species. the main studies and the diversity of asclepiadoideae in brazil are summarized and perspectives for future research on the subfamily are presented.
Jorge Fontanella-Pereyra,Margot Valle Ferreira
Bonplandia , 2010,
Abstract: A taxonomic revision of the Brazilian species of the genus Macroditassa Malme (Apocynaceae-Asclepiadoideae) is presented. The genus belongs to the subfamily Asclepiadoideae R.Br. ex Burnett, tribe Asclepiadeae (R.Br.) Duby, subtribe Metastelmatinae Endl. ex Meisn. and is the most closely related to the Ditassa R.Br. genus. Macroditassa has 14 taxa of which 11 are found in Brazil, where they occurr in the Atlantic forest, disturbed areas, clearings and gullies, "cerrado", "cerradao", "campo rupestre", "campos" (high-altitude savannas) and sandy coast plains ("restingas"). In this paper the identification key of the taxa, descriptions and illustrations, data on flowering and fruiting, as well as maps showing the geographic distribution are presented Uma abordagem taxonómica das especies brasileiras do género Macroditassa Malme (Apocynaceae-Asclepiadoideae) é apresentada. O género pertence á subfamilia Asclepiadoideae R.Br. ex Burnett, tribo Asclepiadeae (R.Br.) Duby, subtribo Metastelmatinae Endl. Ex Meisn., sendo assim mais estreitamente afim a Ditassa R.Br. Macroditassa conta, atualmente, com 14 táxons, dos quais 11 ocorrem no Brasil sendo encontrados em floresta atlántica, em áreas perturbadas, clareiras, depressóes, cerrado, cerradáo, campos rupestres, campos de altitude e em restingas. Neste trabalho sáo fornecidas chaves para identificacáo, descricóes e ilustracóes, dados sobre a floracáo e frutificacáo, assim como a distribuicáo geográfica, utilizando-se mapas e ilustracóes
Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) from the Guiana Shield and Amazonian Brazil  [cached]
Alexander Krings,Gilberto Morillo
PhytoKeys , 2012, DOI: 10.3897/phytokeys.17.3485
Abstract: Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) are described from the Guiana Shield and Amazonian Brazil: Matelea brevistipitata Krings & Morillo, sp. nov. and M. trichopedicellata Krings & Morillo, sp. nov. The new species belong to a small group of adaxially-pubescent-flowered taxa within the complex, including M. hildegardiana and M. pakaraimensis. The new species are described and a dichotomous key is provided.
Taxonomic Relationships of Some Taxa of Subfamily Asclepiadoideae (Apocynaceae) as Reflected by Morphological Variations and Polymorphism in Seed Protein and RAPD Electrophoretic Profile  [PDF]
Sherif M. Sharawy
International Journal of Botany , 2013,
Abstract: Taxonomic status of some members of the subfamily Asclepiadoideae (Apocynaceae) was analysed using variation of morphological features, seed protein electrophoretic pattern and molecular RAPD-PCR markers. The relationships between the examined taxa have been expressed as UPGMA trees, based on the coefficient of similarity using the NTSYS-pc software program. In all trees, the species of tribe Ceropegieae have been delimited together as one group from another major group that comprises species of tribe Asclepiadeae. The present work supports the earlier classification that transferred the genus Ceropegia from subtribe Stapeliinae to subtribe Ceropegiinae. The delimitation of species of tribe Asclepiadeae in four groups supports their previous subtribal delimitation.
Asclepiadoideae (Apocynaceae) from Southeast Brazil-II. New synonyms and new occurrence for Metalepis cubensis in Brazil Asclepiadoideae (Apocynaceae) do Sudeste do Brasil-II. Novos sin nimos e nova ocorrência para Metalepis cubensis no Brasil
Jorge Fontella Pereira,Monique Britto de Goes
Pesquisa Florestal Brasileira , 2010, DOI: 10.4336/2012.pfb.58.77
Abstract: Metalepis cubensis (A. Rich.) Griseb. known only to Central America and north of South America (Colombia and Equador) is registered as a new occurrence to Brazil, Espirito Santo State. Eight taxa described previously are included here as new synonyms. Description and illustration are given. doi: 10.4336/2009.pfb.58.77 Metalepis cubensis (A. Rich.) Griseb. (Apocynaceae-Asclepiadoideae), conhecida somente na América Central e norte da América do Sul (Col mbia e Equador), é registrada como nova ocorrência para o Brasil no Estado do Espírito Santo. Oito táxons descritos anteriormente s o aqui incluídos como novos sin nimos. Também s o apresentadas descri o e ilustra o desta espécie. Doi: 10.4336/2009.pfb.58.77
Laticíferos articulados anastomosados em espécies de Asclepiadeae (Asclepiadoideae, Apocynaceae) e suas implica??es ecológicas
Demarco, Diego;Castro, Marilia de Moraes;
Brazilian Journal of Botany , 2008, DOI: 10.1590/S0100-84042008000400015
Abstract: laticifers occur in all members of apocynaceae. they are described as nonarticulated branched by most authors, but articulated laticifers have been reported to some species of this family. the present study aims to describe the laticifer ontogeny, structure, distribution, and type in vegetative organs of fischeria stellata (vell.) e.fourn., gonioanthela axillaris (vell.) fontella & e.a. schwarz, matelea denticulata (vahl) fontella & e.a. schwarz, and oxypetalum banksii schult. and re-evaluate the laticifers of asclepias curassavica l. from atlantic rainforest, comparing the results with those of species from "cerrado" vegetation. the laticifers of these five species are articulated anastomosing, whose transverse or oblique walls dissolve rapidly and entirely. the laticifers branch through lateral anastomoses and form a continuous system throughout the adult plant. they are observed in primary tissues of stem and leaf, except in epidermis; they are also present in the secondary vascular tissue, except in the secondary xylem of a. curassavica. the ontogeny of these laticifers may explain the divergence between our data and those recorded for most species of the family. the results obtained revealed that the ontogeny, type, structure, and distribution of laticifers of the species of asclepiadeae from "restinga", lowland humid forests, and "cerrado" vegetation are similar. the continuity of the articulated anastomosing laticifer system ensures a greater latex flow into the injured organ, releasing the laticifer exsudate simultaneously, coagulating and sealing the wounds rapidly, besides hindering the entrance of microorganisms.
Lectotypifications in Ditassa R.Br. (Apocynaceae: Asclepiadoideae)
Konno, Tatiana U.P.;Wanderley, Maria das Gra?as L.;
Brazilian Journal of Botany , 2004, DOI: 10.1590/S0100-84042004000400004
Abstract: as results of a revision of the brazilian species of ditassa, lectotypes for d. endoleuca schltr., d. pauciflora decne. and d. ramosa e. fourn. (= d. blanchetii decne.) are designated.
"Jejenes" (Diptera: Simuliidae) of Nahuel Huapi National Park, Patagonia, Argentina: Preliminary results
Hernández,Luis M.; Montes de Oca,Fernanda; Penn,Malcolm; Massaferro,Julieta; Garré,Analía; Brooks,Stephen J.;
Revista de la Sociedad Entomol?3gica Argentina , 2009,
Abstract: the simuliidae is a family of diptera with approximately 2072 described species worldwide. the females of the majority of the species feed from vertebrates' blood, which makes them a significant plague that affects both men as well as cattle, birds, and other vertebrates. the objective of this paper is to create an inventory of simuliidae and to reveal certain aspects of the biology and distribution of this family of aquatic insects in the nahuel huapi national park. moreover, information on the zoogeography of simuliidae in patagonia is provided. five genera, 3 subgenera and 32 species simuliidae are recorded from patagonia: cnesia (three spp.), cnesiamima (one sp.), gigantodax (14 spp.), paraustrosimulium (one sp.), simulium (ectemnaspis) (one sp.), s. (psaroniocompsa) (one sp.) and s. ( pternaspatha) (11 spp.), at present, we have collected all five genera, one subgenus of simulium (pternaspatha), and 19 species of simuliidae in the park, which amounts to 57% of the simuliidae fauna in this area. puerto blest, a characteristic area of the high-andean phytogeographical province (humid forest), showed the highest diversity of simuliidae.
Primeiro registro do gênero Toxorhynchites Theobald (Diptera, Culicidae) em Mata Atlantica, Vi?osa, Minas Gerais
Albeny, Daniel Sim?es;Rosa, Cassiano Sousa;Ataíde, Lívia Maria Silva;Vilela, Evaldo Ferreira;
Revista Ceres , 2010, DOI: 10.1590/S0034-737X2010000200007
Abstract: the occurrence of the genus toxorhynchites (diptera, culicidae) was evaluated during the months march and april 2007 in fragments of atlantic forest in the city of vi?osa, minas gerais state, brazil. a total of 500 oviposition traps were used in the experiment. this is the first record of the genus toxorhynchites in vi?osa and the first record of the species t. pusillus (costa lima, 193 1) and t. theobaldi (dyar & knab, 1906) in minas gerais state. in this scientific note, the species reported as first record and their distribution are described and discussed.

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