Zygia P. Browne (Leguminosae-Mimosoideae) na Amazônia Brasileira
Arquivos
Data
2008-04-08
Autores
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Viçosa
Resumo
Zygia P. Browne é um gênero neotropical, pertencente à tribo Ingeae (Leguminosae-Mimosoideae), com cerca de 57 espécies distribuídas do México Central à Argentina, e maior ocorrência na Amazônia Peruana. Neste trabalho foram estudados os táxons específicos e infra-específicos de Zygia P. Browne ocorrentes na Amazônia Brasileira. O estudo florístico foi realizado a partir da análise morfológica dos espécimes depositados nos principais herbários amazônicos: IAN, INPA e MG; e daqueles provenientes de coletas complementares no período de julho a outubro de 2007, em reservas biológicas do INPA (RFAD, ZF2 e ZF3). Os materiais coletados foram incluídos no acervo do Herbário INPA, duplicatas foram enviadas ao Herbário VIC do Departamento de Biologia Vegetal da Universidade Federal de Viçosa. Foram encontrados 17 táxons específicos e infra-específicos de Zygia para a Amazônia Brasileira. São apresentadas chaves para identificação, descrições morfológicas, ilustrações, fenologia, ocorrência nas diversas formações vegetacionais e padrões de distribuição geográfica dos táxons amostrados. Apenas Z. longifolia (Humb. & Bonpl. ex Willd.) Britton & Rose apresentou distribuição Neotropical; 13 táxons apresentaram distribuição Sul-americana: Z. ampla (Spruce ex Benth.) Pittier, Z. basijuga (Ducke) Barneby & J.W. Grimes, Z. cataractae (Kunth) L. Rico, Z. claviflora (Spruce ex Benth.) Barneby & J.W. Grimes, Z. coccinea var. coccinea (G. Don) L. Rico, Z. inaequalis (Willd.) Pittier, Z. inundata (Ducke) Barneby & J.W. Grimes, Z. latifolia (L.) Fawc. & Rendle var. communis Barneby & J.W. Grimes, Z. latifolia (L.) Fawc. & Rendle var. lasiopus (Benth.) Barneby & J.W. Grimes, Z. odoratissima (Ducke) L. Rico, Z. racemosa (Ducke) Barneby & J.W. Grimes, Z. ramiflora (Benth.) Barneby & J.W. Grimes e Z. unifoliolata (Benth.) Pittier; e, três com distribuição exclusivamente Brasileira: Z. juruana (Harms) L. Rico, Z. transamazonica Barneby & J.W. Grimes e Z. trunciflora (Ducke) L. Rico. Para o Brasil, foram estabelecidos seis padrões de distribuição dos táxons estudados para a Amazônia. A espécie com distribuição mais ampla foi Z. cataractae (Kunth) L. Rico, presente em todas as regiões do Brasil. A maioria dos táxons (11) apresentou o padrão Brasil norte: Z. basijuga (Ducke) Barneby & J.W. Grimes, Z. claviflora (Spruce ex Benth.) Barneby & J.W. Grimes, Z. coccinea var. coccinea (G. Don) L. Rico, Z. inundata (Ducke) Barneby & J.W. Grimes, Z. juruana (Harms) L. Rico, Z. longifolia (Humb. & Bonpl. ex Willd.) Britton & Rose, Z. odoratissima (Ducke) L. Rico, Z. ramiflora (Benth.) Barneby & J.W. Grimes, Z. transamazonica Barneby & J.W. Grimes, Z. trunciflora (Ducke) L. Rico e Z. unifoliolata (Benth.) Pittier. Apenas Z. cataractae (Kunth) L. Rico foi comum à Floresta Atlântica e à Floresta Amazônica. Foram exclusivos de ambientes tipicamente amazônicos: Z. ampla (Spruce ex Benth.) Pittier, Z. basijuga (Ducke) Barneby & J.W. Grimes, Z. claviflora (Spruce ex Benth.) Barneby & J.W. Grimes, Z. coccinea var. coccinea (G. Don) L. Rico, Z. inaequalis, Z. inundata (Ducke) Barneby & J.W. Grimes, Z. latifolia var. lasiopus, Z. racemosa (Ducke) Barneby & J.W. Grimes, Z. ramiflora (Benth.) Barneby & J.W. Grimes, Z. transamazonica Barneby & J.W. Grimes, Z. trunciflora (Ducke) L. Rico e Z. unifolilata (Benth.) Pittier. A riqueza de espécies e a ocorrência da maioria em ambientes restritos à Floresta Amazônica demonstraram como é importante a preservação desse bioma para a conservação da biodiversidade de Zygia.
Zygia P.Browne is a neotropical genus, belonging to the tribe Ingae ((Leguminosae-Mimosoideae), with about 57 species distributed from Central Mexico to Argentina, with the most species in Amazonian Peru. In this work they had been studied táxons specific and infra-specific of Zygia P. Browne that occurs in the Amazonian Brazil. The floristic study of these species was undertaken using specimens deposited in the principal herbaria of Amazonia: IAN, INPA and MG, as well as collections made between July and October 2007 in the biological reserves of INPA (RFAD, ZF2 and ZF3). The collected material was deposited in the INPA herbarium, and duplicates sent to the VIC herbarium of the University of Viçosa. Seventeen taxa were recorded for Amazonian Brazil. Identification keys and illustrations of these species are presented, as well as data on phenology, distribution by habitat and geographical distribution patterns. Only one species, Z. longifolia (Humb. & Bonpl. ex Willd.) Britton & Rose, had a neotropical distribution, 13 taxa had a South American distribution: Z. ampla (Spruce ex Benth.) Pittier, Z. basijuga (Ducke) Barneby & J.W. Grimes, Z. cataractae (Kunth) L. Rico, Z. claviflora (Spruce ex Benth.) Barneby & J.W. Grimes, Z. coccinea var. coccinea (G. Don) L. Rico, Z. inaequalis (Willd.) Pittier, Z. inundata (Ducke) Barneby & J.W. Grimes, Z. latifolia (L.) Fawc. & Rendle var. communis Barneby & J.W. Grimes, Z. latifolia (L.) Fawc. & Rendle var. lasiopus (Benth.) Barneby & J.W. Grimes, Z. odoratissima (Ducke) L. Rico, Z. racemosa (Ducke) Barneby & J.W. Grimes, Z. ramiflora (Benth.) Barneby & J.W. Grimes e Z. unifoliolata (Benth.) Pittier; and three had an exclusively Brazilian distribution: Z. juruana (Harms) L. Rico, Z. transamazonica Barneby & J.W. Grimes e Z. trunciflora (Ducke) L. Rico. Six distribution patterns for the Amazonian species within Brazil were distinguished. The most widely distributed species was Z. cataractae, which is present throughout Brazil. The majority of the taxa (11) occurred only in the northern region: Z. basijuga, Z. claviflora, Z. coccinea var. coccinea, Z. inundata, Z. juruana, Z. longifolia, Z. odoratissima, Z. ramiflora, Z. transamazonica, Z. trunciflora and Z. unifoliolata. Only Z. cataractae was common in both Atlantic and Amazonian Forests. Amongst the taxa studied, 12 occurred exclusively in tipically Amazoinian habitats: Z. ampla, Z. basijuga, Z. claviflora, Z. coccinea var. coccinea, Z. inaequalis, Z. inundata, Z. latifolia var. lasiopus, Z. racemosa, Z. ramiflora, Z. transamazonica, Z. trunciflora and Z. unifolilata. The wealth of species and the occurrence of the majority in restricted environments to the Amazonian Forest had demonstrated as the preservation of this is important bioma for the conservation of the biodiversity of Zygia.
Zygia P.Browne is a neotropical genus, belonging to the tribe Ingae ((Leguminosae-Mimosoideae), with about 57 species distributed from Central Mexico to Argentina, with the most species in Amazonian Peru. In this work they had been studied táxons specific and infra-specific of Zygia P. Browne that occurs in the Amazonian Brazil. The floristic study of these species was undertaken using specimens deposited in the principal herbaria of Amazonia: IAN, INPA and MG, as well as collections made between July and October 2007 in the biological reserves of INPA (RFAD, ZF2 and ZF3). The collected material was deposited in the INPA herbarium, and duplicates sent to the VIC herbarium of the University of Viçosa. Seventeen taxa were recorded for Amazonian Brazil. Identification keys and illustrations of these species are presented, as well as data on phenology, distribution by habitat and geographical distribution patterns. Only one species, Z. longifolia (Humb. & Bonpl. ex Willd.) Britton & Rose, had a neotropical distribution, 13 taxa had a South American distribution: Z. ampla (Spruce ex Benth.) Pittier, Z. basijuga (Ducke) Barneby & J.W. Grimes, Z. cataractae (Kunth) L. Rico, Z. claviflora (Spruce ex Benth.) Barneby & J.W. Grimes, Z. coccinea var. coccinea (G. Don) L. Rico, Z. inaequalis (Willd.) Pittier, Z. inundata (Ducke) Barneby & J.W. Grimes, Z. latifolia (L.) Fawc. & Rendle var. communis Barneby & J.W. Grimes, Z. latifolia (L.) Fawc. & Rendle var. lasiopus (Benth.) Barneby & J.W. Grimes, Z. odoratissima (Ducke) L. Rico, Z. racemosa (Ducke) Barneby & J.W. Grimes, Z. ramiflora (Benth.) Barneby & J.W. Grimes e Z. unifoliolata (Benth.) Pittier; and three had an exclusively Brazilian distribution: Z. juruana (Harms) L. Rico, Z. transamazonica Barneby & J.W. Grimes e Z. trunciflora (Ducke) L. Rico. Six distribution patterns for the Amazonian species within Brazil were distinguished. The most widely distributed species was Z. cataractae, which is present throughout Brazil. The majority of the taxa (11) occurred only in the northern region: Z. basijuga, Z. claviflora, Z. coccinea var. coccinea, Z. inundata, Z. juruana, Z. longifolia, Z. odoratissima, Z. ramiflora, Z. transamazonica, Z. trunciflora and Z. unifoliolata. Only Z. cataractae was common in both Atlantic and Amazonian Forests. Amongst the taxa studied, 12 occurred exclusively in tipically Amazoinian habitats: Z. ampla, Z. basijuga, Z. claviflora, Z. coccinea var. coccinea, Z. inaequalis, Z. inundata, Z. latifolia var. lasiopus, Z. racemosa, Z. ramiflora, Z. transamazonica, Z. trunciflora and Z. unifolilata. The wealth of species and the occurrence of the majority in restricted environments to the Amazonian Forest had demonstrated as the preservation of this is important bioma for the conservation of the biodiversity of Zygia.
Descrição
Palavras-chave
Zygia, Leguminosae, Amazônia, Zygia, Leguminosae, Amazon
Citação
SILVA, Márcia Carla Ribeiro da. Zygia P. Browne (Leguminosae-Mimosoideae) in the Amazonian Brazil. 2008. 83 f. Dissertação (Mestrado em Botânica estrutural; Ecologia e Sistemática) - Universidade Federal de Viçosa, Viçosa, 2008.