A familia Myrtaceae-subtribos : Myrciianae e Eugeniinae na bacia hidrografica do rio Tibagi, Estado do Parana, Brasil

AUTOR(ES)
DATA DE PUBLICAÇÃO

2000

RESUMO

This study is the taxonomic treatment of subtribes Myrciinae and Eugeniinae (Myrtaceae), in the rio Tibagi river basin, Paraná, Brazil. This river basin, the third longest in the state, 25.239 Km2 long, is located in the centre-east portion of the State between 4go 30 e 510 30 Wand 220 30 e 250 40 S. Botanical collections were made for two years, between 1994 and 1996, in alI counties in the basin, with a special effort to collect in areas where the vegetation was well-preserved. The material collected was deposited in the FUEL Herbarium, of the Universidade Estadual de Londrina, with duplicates in UB (Universidade de Brasília), ASU (Arizona State University), K (Royal Botanical Garden Kew), MBM (Museu Botânico Municipal de Curitiba), MO (Missouri Botanical Garden), SP (Instituto de Botânica de São Paulo) and UEC (Universidade de Campinas) herbaria. The fieldwork, allied to examining material in the FUEL, HBR, HUEPG, RUM, MBM, SP, UB, UEC and UPCB Herbaria, resulted in a treatment of 75 taxons in 13 different genera, distributed as follows: subtribe Myrciinae - Myrcia, the largest genus, with 22 taxa, Myrceugenia with seven taxa, Calyptranthes and Gomidesia with three species each and Marlierea with a single species; subtribe Eugeniinae - Eugenia, the largest genus with 23 espécies, followed by Myrciaria with four species; HexachJamys with three species; Myrcianthes, Neomitranthes, PUnia and Siphoneugena with two species each and CaJycorectes with a singles species. The species occur in forests, fields, cerrado patches, swamps and other wet habitats. Amongst the 75 taxa, 73 are determined to species and two to genus, these later species are believed to be new. A new form of Myrcia rostrata is proposed, M rostrata DC. f fleruosa and a new combination, Myrcia venu/osa DC. varo dives. Nine names are sinonimized. Keys are furnished for ali 19 genera occurring in the rio Tibagi river basin (as well as for the three subtribes of the family), keys to the genera of each subtribe, and a key for the 11 genera treated (two genera have a single species), and for varieties and forms when extant. Descriptions and figures are presented showing a flowering or ftuiting branch for each taxon, besides ink illustrations with details of the genera, lists of examined material, maps geografic distribution in the river basin and fenological data

ASSUNTO(S)

botanica - classificação eucalipto mirtacea botanica

ACESSO AO ARTIGO

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