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Systematic Botany is the scientific journal of the American Society of Plant Taxonomists and publishes four issues per year.

2011 Impact Factor: 1.517

2011 ISI Journal Citation Reports® Rankings: 87/190 - Plant Sciences

34/45 - Evolutionary Biology

Publisher: American Society of Plant Taxonomists

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Volume 42, Number 2, June 2017

Phylogenetic Systematics

Plastid and Seed Morphology Data Support a Revised Infrageneric Classification and an African Origin of the Pantropical Genus Xylopia (Annonaceae)
pp. 211-225(15)
Authors: Stull, Gregory W.; Johnson, David M.; Murray, Nancy A.; Couvreur, Thomas L. P.; Reeger, Jenna E.; Roy, Caroline M.

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Species Delimitation in Tetraploid, Apomictic Amelanchier (Rosaceae)
pp. 234-256(23)
Authors: Cushman, Kevin R.; Burgess, Michael B.; Doucette, Eric T.; Nelson, Gretchen A.; Campbell, Christopher S.

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Evolutionary History and Taxonomy of the Euphorbia polycarpa Complex (Euphorbia subg. Chamaesyce sect. Anisophyllum, Euphorbiaceae)
pp. 257-270(14)
Authors: Maya-Lastra, Carlos A.; Porter, J. Mark; Steinmann, Victor W.

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Phylogenetic Systematics of Cochlospermaceae (Malvales) Based on Molecular and Morphological Evidence
pp. 271-282(12)
Authors: Johnson-Fulton, Susannah B.; Watson, Linda E.

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Open Access The Western Spring Beauties, Claytonia lanceolata (Montiaceae): A Review and Revised Taxonomy For California
pp. 283-300(18)
Authors: Stoughton, Thomas R.; Jolles, Diana D.; O’Quinn, Robin L.

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An Unusual New Species of Bidens (Asteraceae, Coreopsideae) with its Phylogenetic Position and Taxonomic Notes
pp. 301-312(12)
Authors: de Azevedo Bringel, João Bernardo; Barêa Pastore, José Floriano; Cavalcanti, Taciana Barbosa

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Taxonomy and Floristics

A New Species Hidden in the Lowlands of Tocantins, Brazil: Chamaecrista tocantinensis (Fabaceae)
pp. 326-337(12)
Authors: Mendes, Thainara Policarpo; Oliveira de Souza, Alessandro; José da Silva, Marcos

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A New Bristle-leaved Species of Sauvagesia (Ochnaceae) Endemic to the Espinhaço Range, Brazil
pp. 346-350(5)
Authors: Queiroz-Lima, Adriana; Amorim, André M.; Cardoso, Domingos B. O. S.

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Two New Species of the Carnivorous Genus Philcoxia (Plantaginaceae) from the Brazilian Cerrado
pp. 351-357(7)
Authors: Scatigna, André Vito; Gonçalves da Silva, Nílber; Válka Alves, Ruy José; Souza, Vinicius Castro; Simões, André Olmos

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Pouteria samborae, a New Species of Sapotaceae (Chrysophylloideae) from Espírito Santo, Brazil
pp. 358-363(6)
Authors: Alves-Araújo, Anderson; Mônico, Arnaldo Zanetti

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Neonauclea viridiflora (Rubiaceae), a New Species of Naucleeae from Eastern Samar, with Notes on Myrmecophytic Species in the Philippines
pp. 364-370(7)
Authors: Ordas, Jorge Anton D.; Banag, Cecilia I.; Alejandro, Grecebio Jonathan D.

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Stemodia cipoensis (Plantaginaceae): A New Species from Serra do Cipó, Minas Gerais, Brazil
pp. 371-377(7)
Authors: Scatigna, André Vito; Souza, Vinicius Castro; Simões, André Olmos

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Vernonia occulta (Asteraceae: Vernonieae: Vernoniinae) a New Species from the State of Oaxaca, Mexico
pp. 378-383(6)
Authors: Redonda-Martínez, Rosario; Mora-Jarvio, Mauricio

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