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  5. The Araceae in Ceará, Brazil: humid forest plants in a semi-arid region.

The Araceae in Ceará, Brazil: humid forest plants in a semi-arid region.

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Resource type
Journal article
Creator (person)
Andrade, Ivanilza Moreira de
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Mayo, Simon Joseph
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Silva, Maria Francilene Souza
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Sousa, Danilo José Lima de
Matias, Lígia Queiroz
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Ribeiro, Thales Alves
Date published
November 11, 2013
Abstract
The study consists of a taxonomic treatment of the Araceae of Ceará, a state lying within Brazil's semi-arid region. The aroid flora shows greater similarity to those of central Brazil and Amazonia than to the Atlantic forest. Most species occur in humid forest fragments - the "florestas serranas". Geophytes are also found in caatinga and dry forest (Taccarum ulei) and lithophytes on rock outcrops in dry forest (Philodendron acutatum). Floating aquatics occur in ponds and lakes throughout the state (Pistia stratiotes, Lemna aequinoctialis, Lemna minuta, Spirodela intermedia, Wolffia columbiana, Wolffiella welwitschii), and freshwater helophytes (Montrichardia linifera) along river margins. 28 taxa (species and varieties) in 19 genera are described and most are illustrated:Anthurium (three spp.), Caladium (one sp.), Dieffenbachia (one sp.), Dracontium (one sp.), Lemna (two spp.), Monstera (two spp., one with two varieties), Montrichardia (one sp.), Philodendron (four spp.), Pistia (one sp.), Scaphispatha (one sp.), Spathicarpa (one sp.), Spathiphyllum (one sp.), Spirodela (one sp.), Syngonium (one sp.), Taccarum (one sp.), Wolffia (one sp.), Wolffiella (one sp.), Xanthosoma (two spp.), Zomicarpa (one sp.). New records for Ceará are Dieffenbachia aglaonematifolia, Dracontium nivosum, Monstera adansonii var. laniata, Philodendron sp. aff. ruthianum and the naturalized exotic Typhonium roxburghii. An identification key and data on geographic distribution and conservation status are provided. O trabalho apresenta estudo taxonômico das Araceae no Ceará, estado que se enquadra na região semi-árida brasileira. A similaridade de taxa é maior com Brasil Central e Amazônia do que com a Mata Atlântica. A maioria das espécies ocorre nas florestas úmidas serranas. Geófitas podem ser ainda encontradas em caatinga e floresta seca (Taccarum ulei) e litófitas em afloramentos rochosos (Philodendron acutatum). Aquáticas flutuantes (Pistia stratiotes, Lemna aequinoctialis, Lemna minuta, Spirodela intermedia, Wolffia columbiana, Wolffiella welwitschii) e helófitas (Montrichardia linifera) ocorrem em água doce em todo o Estado. São descritos 28 taxa (espécies e variedades) distribuídos em 19 gêneros, na sua maioria ilustrados:Anthurium (três spp.), Caladium (uma sp.), Dieffenbachia (uma sp.), Dracontium (uma sp.), Lemna (duas spp.), Monstera (duas spp., uma com duas variedades), Montrichardia (uma sp.), Philodendron (quatro spp.), Pistia (uma sp.), Scaphispatha (uma sp.), Spathicarpa (uma sp.), Spathiphyllum (uma sp.), Spirodela (uma sp.), Syngonium (uma sp.), Taccarum (uma sp.), Wolffia (uma sp.), Wolffiella (uma sp.), Xanthosoma (duas spp.), e Zomicarpa (uma sp.). Os taxa registrados pela primeira vez para o estado foram:Dieffenbachia aglaonematifolia, Dracontium nivosum, Monstera adansonii var. laniata, Philodendron sp. aff. ruthianum e uma espécie exótica naturalizada, Typhonium roxburghii. Chave de identificação e dados sobre distribuição geográfica e estado de conservação são fornecidos.
Funder
Funder nameAwards
Bentham-Moxon Trust
WWF-Brasil
Journal title
Rodriguésia
Volume
64
Issue
3
Publisher
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
Place of publication
Rio de Janeiro.
eISSN
2175-7860
Date accepted
May 19, 2013
Official URL
https://doi.org/10.1590/s2175-78602013000300002
Related URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602013000300002&lng=en&tlng=en
Rights statement
In Copyright
Licence
https://creativecommons.org/licenses/by-nc/4.0/
DOI
10.1590/s2175-78602013000300002
Keywords
Semiarid region
Brazil
Monocotyledons
Ceará (Brazil)
Aeaceae
Floristics
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