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vol.69 issue2Flora of the Usina São José, Igarassu, Pernambuco: ApocynaceaeTaxonomic synopsis of the genus Senna (Leguminosae, Caesalpinioideae, Cassieae) in the Center-West region of Brazil author indexsubject indexarticles search
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Rodriguésia

Print version ISSN 0370-6583On-line version ISSN 2175-7860

Abstract

NEPOMUCENO, Francisco Álvaro Almeida et al. The genus Borreria (Spermacoceae, Rubiaceae) in the state of Ceará, Brazil. Rodriguésia [online]. 2018, vol.69, n.2, pp.715-731. ISSN 0370-6583.  http://dx.doi.org/10.1590/2175-7860201869232.

This work comprises the taxonomic treatment of genus Borreria for the Ceará flora. Based on field observations and herbaria specimens, eleven species were recorded: Borreria apodiensis, B. brownii, B. capitata, B. cupularis, B. latifolia, B. ocymifolia, B. scabiosoides, B. spinosa, B. tenella, B. verticillata and B. virgata. Most species occur in Caatinga vegetation and nine were registered in environmental conservation units. B. brownii, B. spinosa and B. verticillata are widely spread throughout the phytoecological units of the state. Four species have a more restricted occurrence in Ceará: B. capitata and B. cupularis (in the Araripe Plateau), B. tenella (in the Ubatuba Mountains and adjacent areas) and B. virgata (in the Ibiapaba Plateau). On the other hand, B. apodiensis is a endemic species to the Brazil, that is restricted to Chapada do Apodi. An identification key, descriptions, images, geographic distribution and habitat of the species are provided.

Keywords : Caatinga; Rubioideae; Semiarid; taxonomy.

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