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    <subfield code="a">Abreu, Maria Carolina de </subfield>
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    <subfield code="a">Oliveira, Ykaro Richard </subfield>
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    <subfield code="a">Santos, Juliana Silva dos </subfield>
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    <subfield code="a">Carvalho, Reginaldo </subfield>
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    <subfield code="a">Silva, Marcos Jos&#xE9; da</subfield>
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    <subfield code="a">Sales, Margareth Ferreira de </subfield>
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    <subfield code="a">Taxonomic study of Oxalis section Thamnoxys (Oxalidaceae) in Brazil</subfield>
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    <subfield code="a">Publica&#xE7;&#xE3;o on-line; 14 ref.; 12 illus.; Summaries (En, Pt)</subfield>
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Abstract

Oxalis comprises ca. 500 species and has a tropical and subtropical distribution. This genus contains four
subgenera and Oxalis subg. Thamnoxys is the most diverse in Brazil. This subgenus has 9 sections, of which
section Thamnoxys is the most diverse with 28 species. This work is based on a taxonomic study of Oxalis
section Thamnoxys in Brazil and includes descriptions, illustrations, and notes for the recorded species. The
following species were recorded: Oxalis barrelieri, O. cerradoana, O. clausenii, O. cratensis, O. cytisoides, O.
diamantinae, O. divaricata, O. frutescens, O. hedysarifolia, O. hyalotricha, O. jacobinensis, O. mucronulata, 
O. nigrescens, O. pilulifera, O. pyrenea, O. renifolia, O. sellowii, O. sepium, and O. suborbiculata. These
species are mostly distributed in rainforest and seasonal semi-deciduous forest.

Key words: distribution, dry forest, morphology, neotropical flora, South America.




Resumo

Oxalis possui cerca de 500 esp&#xE9;cies com distribui&#xE7;&#xE3;o tropical e subtropical. Esse g&#xEA;nero engloba quatro
subg&#xEA;neros, sendo Oxalis subg. Thamnoxys o mais diverso do Brasil. Esse subg&#xEA;nero possui 9 se&#xE7;&#xF5;es,
sendo Thamnoxys o mais diverso, com 28 esp&#xE9;cies. &#xC9; apresentado aqui o estudo taxon&#xF4;mico de Oxalis sect.
Thamnoxys para o Brasil, incluindo descri&#xE7;&#xF5;es, ilustra&#xE7;&#xF5;es e notas sobre as esp&#xE9;cies registradas. As seguintes
esp&#xE9;cies foram registradas: Oxalis barrelieri, O. cerradoana, O. clausenii, O. cratensis, O. cytisoides, O.
diamantinae, O. divaricata, O. frutescens, O. hedysarifolia, O. hyalotricha, O. jacobinensis, O. mucronulata, 
O. nigrescens, O. pilulifera, O. pyrenea, O. renifolia, O. sellowii, O. sepium e O. suborbiculata. Essas esp&#xE9;cies
est&#xE3;o distribu&#xED;das principalmente na floresta tropical e na floresta estacional semidec&#xED;dua.

Palavras-chave: distribui&#xE7;&#xE3;o, florestas secas, morfologia, Flora neotropical, Am&#xE9;rica do Sul.</subfield>
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    <subfield code="a">MORFOLOGIA VEGETAL</subfield>
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    <subfield code="a">FLORA</subfield>
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    <subfield code="a">AM&#xC9;RICA DO SUL</subfield>
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    <subfield code="a">DISTRIBUI&#xC7;&#xC3;O GEOGR&#xC1;FICA</subfield>
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    <subfield code="0">709</subfield>
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    <subfield code="d">Rio de Janeiro-RJ Jardim Botanico do Rio de Janeiro 1935</subfield>
    <subfield code="o">2025-7320</subfield>
    <subfield code="t">Rodrigu&#xE9;sia (Brazil)</subfield>
    <subfield code="x">0370-6583; 2175-7860 on-line</subfield>
    <subfield code="g">v. 75 p. 1-26; (2024)</subfield>
    <subfield code="w">BR2025004528</subfield>
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