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      Composição florística de veredas no Município de Uberlândia, MG Translated title: Floristic composition of palm swamp communities near Uberlândia, Minas Gerais, Brazil

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          Abstract

          Foram estudadas quatro comunidades vegetais de veredas no Municipio de Uberlândia, MG, durante dois anos com o objetivo de conhecer sua composição florística. As veredas foram percorridas por meio de trilhas estabelecidas, ao acaso, passando pela borda (local de solo mais seco), meio (solo medianamente úmido) e fundo (solo saturado com água). A freqüência de visitas à cada vereda foi mensal e o material botânico coletado foi incluído no Herbarium Uberlandense (HUFU). A identificação das espécies foi feita utilizando-se chaves analíticas, consultas a especialistas de várias famílias e/ou comparação com exsicatas devidamente identificadas e depositadas nos herbários HUFU, IBGE e UB. No levantamento florístico foram registradas 526 espécies, 250 gêneros e 89 famílias. As cinco famílias com maior número de espécies foram Poaceae (64), Asteraceae (63), Cyperaceae (54), Melastomataceae (27) e Fabaceae (23). Na zona de borda da vereda foram amostradas 361 espécies sendo 168 exclusivas deste ambiente. Um total de 300 espécies ocorreu na zona de meio, sendo 75 exclusivas. Na zona de fundo ocorreu a menor riqueza específica, compreendendo um total de 136 espécies com 52 exclusivas desta área. A grande riqueza florística encontrada nas veredas amostradas deve-se, possivelmente, às diferenças edáficas, especialmente aquelas relacionadas com a umidade.

          Translated abstract

          Over a two-year period, four palm swamp communities near Uberlândia, MG, Brazil, were studied for their floristic composition. Transects were randomly established to cross the following zones: palm swamp border (dryish soils), middle area (intermediate soil moisture), and lower zone (with permanently satured soils). The transects were censused each month and voucher herbarium specimens were collected and identified by means of keys, comparisons with identified material at HUFU, IBGE and UB, and with the help of specialists for some families. Voucher specimens were deposited at HUFU. A total of 526 species, 250 genera and 89 families were collected. The five families with highest number of species were: Poaceae (64), Asteraceae (63), Cyperaceae (54), Melastomataceae (27) e Fabaceae (23). In the palm swamp border, 361 species were collected, 168 of which were exclusive to this zone. A total of 300 species were collected in the middle zone, of which 75 were exclusive to this area. The lower zone had the lowest species diversity, with 52 exclusive species from a total of 136 taxa. The great richness found in the palm swamp possibly is due to soil differences, especially those related to humidity.

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          Most cited references37

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          Ecological Diversity and Its Measurement

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            The evolution and classification of flowering plants

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbb
                Brazilian Journal of Botany
                Braz. J. Bot.
                Sociedade Botânica de São Paulo (São Paulo )
                1806-9959
                December 2002
                : 25
                : 4
                : 475-493
                Affiliations
                [1 ] Universidade Federal de Uberlândia Brazil
                [2 ] Universidade Federal de Uberlândia Brazil
                Article
                S0100-84042002012000012
                10.1590/S0100-84042002012000012
                48cde366-cf37-4227-971e-a66bb39c7a93

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-8404&lng=en
                Categories
                PLANT SCIENCES

                Plant science & Botany
                Cerrado biome,floristic composition,palm swamp,wetland
                Plant science & Botany
                Cerrado biome, floristic composition, palm swamp, wetland

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