Garcinia gardneriana (Clusiaceae) is a small to medium-sized tree that usually occurs on the floo... more Garcinia gardneriana (Clusiaceae) is a small to medium-sized tree that usually occurs on the floodplains of the Paraná River and it is an important food source for the local inhabitants. The fruit itself is consumed in natura, and juices and sweets are made from it. The purpose of this study was to describe morphological and structural aspects of fruits and seeds of this species in order to classify the fruit type and the pulpy layer which involves the seeds. The material analyzed consisted of ovary and fruits in different stages of development, collected from five plants from Aurélio Island, Baía River (MS, BR) and the description was done according to standard procedures in anatomy. The fruit is a yellowish-orange spherical berry ("bacóide" type). The smooth, coriaceous skin consists of the lignified exocarp. The endocarp cell layers are derived from the activity of an adaxial meristem that undergoes radial elongation. The edible sweet white pulp is formed by the endocar...
ABSTRACT. Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant speci... more ABSTRACT. Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant species in areas of natural reforesting in South and Southeastern Brazil, including riparian areas. This arboreous species seems to reproduce by seeds in undisturbed forests. In regenerating forests, however, L. cultratus has been observed mostly as patches of aggregates, consisting of highly similar plants, resembling clones. Sprouting from root buds had been previously observed in L. cultratus in a forest affected by fire. In the present study, RAPD polymorphism revealed high genetic diversity among plants from L. cultratus aggregates in a natural restoring riparian forest affected by fires, in the Upper Paraná River, Brazil. These data allow the suggestion that sexual reproduction has been the L. cultratus usual reproductive strategy to colonize the reforesting riparian area.
Utilizando-se de método fitossociológico, foi realizado estudo comparativo entre três remanescent... more Utilizando-se de método fitossociológico, foi realizado estudo comparativo entre três remanescentes de floresta riparia da margem direita do alto rio Paraná (22º43'-45'S; 53º15'-18'W). Em cada um deles foi demarcada uma área de 3.150m\ subdividida em 21 parcelas contínuas de 150m², tendo como critério mínimo de amostragem o perímetro à altura do peito igual ou superior a 15cm. Foram levantados, na amostragem total, 58 espécies, 46 gêneros e 30 famílias, sendo duas indeterminadas. As famílias de maior riqueza específica foram Myrtaceae e Lauraceae com cinco espécies cada, Mimosaceae com quatro, Annonaceae e Rubiaceae com três cada uma, enquanto que os gêneros foram, Nectandra com quatro, Eugenia, Inga, Pouteria, Psidium e Sloanea com dois cada um. Os índices de diversidade (H') específicos foram de 2,94, 2,52 e 2,88 para, respectivamente, os remanescentes jusante, intermediário e montante. O índice de similaridade de Sorensen entre os três remanescentes variou de ...
Foi realizado o levantamento das espécies de Eugenia L. da planície alagável do Alto Rio Paraná, ... more Foi realizado o levantamento das espécies de Eugenia L. da planície alagável do Alto Rio Paraná, Estados de Mato Grosso do Sul e Paraná (22º40' a 22º55'S e 53º10' a 53º40'W). Esta área localiza-se no domínio da Floresta Estacional Semidecidual e apresenta formações ripárias ao longo do rio Paraná, de suas ilhas e de seus tributários. As espécies registradas foram: Eugenia egensis DC., E. florida DC., E. hyemalis Cambess., E. klappenbachiana Mattos & D. Legrand, E. moraviana O. Berg, E. pyriformis Cambess., E. ramboi D. Legrand, E. repanda O. Berg., E. sulcata Spring. ex Mart. e E. uniflora L. Os meses que apresentaram o maior número de espécies em floração e frutificação foram respectivamente, setembro e novembro. Eugenia florida, E. hyemalis e E. repanda apresentam ampla distribuição na área, enquanto que E. ramboi e E. sulcata foram encontradas somente na margem esquerda do rio Paraná. É fornecida uma chave para a identificação das espécies, acompanhada de ilustraç...
Brazilian Archives of Biology and Technology, 1999
In a survey of the aquatic macrophytes of the Itaipu Reservoir, we identified 62 taxa in 25 famil... more In a survey of the aquatic macrophytes of the Itaipu Reservoir, we identified 62 taxa in 25 families and 42 genera. The highest number taxa was observed for the emergent macrophytes (40 taxa). Reduced fluctuation in water level, increased light penetration, and sediment enrichment by nutrients and organic matter following the formation of the reservoir favored the appearance of a species-rich community of submerged macrophytes (23% of the taxa identified). The aquatic macrophytes were found mainly near the mouths of the main tributaries of the reservoir, in shallow area of depth less than 2 meters. In addition to the shallow depth, the greater nutrient input from the tributaries and relative protection from wind explained this distribution. Among the species found, Egeria najas merits mention for its occurrence in all localities sampled, with biomass values varying between 98 and 186 gDW/m². Some potential nuisance species such as Eichhornia crassipes, Salvinia auriculata, and Pisti...
Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant species in area... more Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant species in areas of natural reforesting in South and Southeastern Brazil, including riparian areas. This arboreous species seems to reproduce by seeds in undisturbed forests. In regenerating forests, however, L. cultratus has been observed mostly as patches of aggregates, consisting of highly similar plants, resembling clones. Sprouting from root buds had been previously observed in L. cultratus in a forest affected by fire. In the present study, RAPD polymorphism revealed high genetic diversity among plants from L. cultratus aggregates in a natural restoring riparian forest affected by fires, in the Upper Parana River, Brazil. These data allow the suggestion that sexual reproduction has been the L. cultratus usual reproductive strategy to colonize the reforesting riparian area.
With the aim of expanding knowledge about the flora of the Upper Parana River Floodplain, especia... more With the aim of expanding knowledge about the flora of the Upper Parana River Floodplain, especially of the family Leguminosae, was realized a survey of genus Crotalaria L. (Leguminosae-Faboideae). The study area included the upper stretch of this floodplain, located approximately 22o38’ a 22o57’ S e 53o05’ a 53o36’ W, in the states of Parana and Mato Grosso do Sul, Brazil. The material of the study came from samples taken between August 2009 and April 2012, and from the collection of HUEM herbarium. Six species have been recognized, including three natives: Crotalaria incana L., C. maypurensis Kunth and C. micans Link, one endemic: C. vespertilio Benth., and two subspontaneous in Brazil: C. lanceolata E. Mey. and C. pallida Aiton. An identification key for these species as well their morphological descriptions and illustrations were provided.
Com o objetivo de ampliar os conhecimentos sobre a flora da Mata do Araldo e da planicie de inund... more Com o objetivo de ampliar os conhecimentos sobre a flora da Mata do Araldo e da planicie de inundacao do alto rio Parana, foi realizado um levantamento floristico das plantas vasculares. A area de estudo compreendeu um remanescente de floresta estacional semidecidual submontana perturbado e localizado na margem esquerda do alto rio Parana (53o19’3” W e 22o47’37” S). Foram realizadas 16 expedicoes em diferentes periodos do ano, de junho de 2005 a outubro de 2007. O material testemunho foi incorporado ao Herbario HUEM. Foram levantadas 148 especies reunidas em 124 generos e 60 familias. As familias com maior riqueza de especies foram Fabaceae, Rubiaceae, Euphorbiaceae, Myrtaceae e Solanaceae (28,38% do total) e, dentre os generos foram Eugenia, Casearia, Inga e Cissus (10,13% do total). Quanto ao porte, o arboreo reuniu a maioria das familias, dos generos e das especies. Na Mata do Araldo, 51 especies foram encontradas exclusivamente neste estudo e 56, das registradas anteriormente, n...
Garcinia gardneriana (Clusiaceae) is a small to medium-sized tree that usually occurs on the floo... more Garcinia gardneriana (Clusiaceae) is a small to medium-sized tree that usually occurs on the floodplains of the Paraná River and it is an important food source for the local inhabitants. The fruit itself is consumed in natura, and juices and sweets are made from it. The purpose of this study was to describe morphological and structural aspects of fruits and seeds of this species in order to classify the fruit type and the pulpy layer which involves the seeds. The material analyzed consisted of ovary and fruits in different stages of development, collected from five plants from Aurélio Island, Baía River (MS, BR) and the description was done according to standard procedures in anatomy. The fruit is a yellowish-orange spherical berry ("bacóide" type). The smooth, coriaceous skin consists of the lignified exocarp. The endocarp cell layers are derived from the activity of an adaxial meristem that undergoes radial elongation. The edible sweet white pulp is formed by the endocar...
ABSTRACT. Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant speci... more ABSTRACT. Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant species in areas of natural reforesting in South and Southeastern Brazil, including riparian areas. This arboreous species seems to reproduce by seeds in undisturbed forests. In regenerating forests, however, L. cultratus has been observed mostly as patches of aggregates, consisting of highly similar plants, resembling clones. Sprouting from root buds had been previously observed in L. cultratus in a forest affected by fire. In the present study, RAPD polymorphism revealed high genetic diversity among plants from L. cultratus aggregates in a natural restoring riparian forest affected by fires, in the Upper Paraná River, Brazil. These data allow the suggestion that sexual reproduction has been the L. cultratus usual reproductive strategy to colonize the reforesting riparian area.
Utilizando-se de método fitossociológico, foi realizado estudo comparativo entre três remanescent... more Utilizando-se de método fitossociológico, foi realizado estudo comparativo entre três remanescentes de floresta riparia da margem direita do alto rio Paraná (22º43'-45'S; 53º15'-18'W). Em cada um deles foi demarcada uma área de 3.150m\ subdividida em 21 parcelas contínuas de 150m², tendo como critério mínimo de amostragem o perímetro à altura do peito igual ou superior a 15cm. Foram levantados, na amostragem total, 58 espécies, 46 gêneros e 30 famílias, sendo duas indeterminadas. As famílias de maior riqueza específica foram Myrtaceae e Lauraceae com cinco espécies cada, Mimosaceae com quatro, Annonaceae e Rubiaceae com três cada uma, enquanto que os gêneros foram, Nectandra com quatro, Eugenia, Inga, Pouteria, Psidium e Sloanea com dois cada um. Os índices de diversidade (H') específicos foram de 2,94, 2,52 e 2,88 para, respectivamente, os remanescentes jusante, intermediário e montante. O índice de similaridade de Sorensen entre os três remanescentes variou de ...
Foi realizado o levantamento das espécies de Eugenia L. da planície alagável do Alto Rio Paraná, ... more Foi realizado o levantamento das espécies de Eugenia L. da planície alagável do Alto Rio Paraná, Estados de Mato Grosso do Sul e Paraná (22º40' a 22º55'S e 53º10' a 53º40'W). Esta área localiza-se no domínio da Floresta Estacional Semidecidual e apresenta formações ripárias ao longo do rio Paraná, de suas ilhas e de seus tributários. As espécies registradas foram: Eugenia egensis DC., E. florida DC., E. hyemalis Cambess., E. klappenbachiana Mattos & D. Legrand, E. moraviana O. Berg, E. pyriformis Cambess., E. ramboi D. Legrand, E. repanda O. Berg., E. sulcata Spring. ex Mart. e E. uniflora L. Os meses que apresentaram o maior número de espécies em floração e frutificação foram respectivamente, setembro e novembro. Eugenia florida, E. hyemalis e E. repanda apresentam ampla distribuição na área, enquanto que E. ramboi e E. sulcata foram encontradas somente na margem esquerda do rio Paraná. É fornecida uma chave para a identificação das espécies, acompanhada de ilustraç...
Brazilian Archives of Biology and Technology, 1999
In a survey of the aquatic macrophytes of the Itaipu Reservoir, we identified 62 taxa in 25 famil... more In a survey of the aquatic macrophytes of the Itaipu Reservoir, we identified 62 taxa in 25 families and 42 genera. The highest number taxa was observed for the emergent macrophytes (40 taxa). Reduced fluctuation in water level, increased light penetration, and sediment enrichment by nutrients and organic matter following the formation of the reservoir favored the appearance of a species-rich community of submerged macrophytes (23% of the taxa identified). The aquatic macrophytes were found mainly near the mouths of the main tributaries of the reservoir, in shallow area of depth less than 2 meters. In addition to the shallow depth, the greater nutrient input from the tributaries and relative protection from wind explained this distribution. Among the species found, Egeria najas merits mention for its occurrence in all localities sampled, with biomass values varying between 98 and 186 gDW/m². Some potential nuisance species such as Eichhornia crassipes, Salvinia auriculata, and Pisti...
Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant species in area... more Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant species in areas of natural reforesting in South and Southeastern Brazil, including riparian areas. This arboreous species seems to reproduce by seeds in undisturbed forests. In regenerating forests, however, L. cultratus has been observed mostly as patches of aggregates, consisting of highly similar plants, resembling clones. Sprouting from root buds had been previously observed in L. cultratus in a forest affected by fire. In the present study, RAPD polymorphism revealed high genetic diversity among plants from L. cultratus aggregates in a natural restoring riparian forest affected by fires, in the Upper Parana River, Brazil. These data allow the suggestion that sexual reproduction has been the L. cultratus usual reproductive strategy to colonize the reforesting riparian area.
With the aim of expanding knowledge about the flora of the Upper Parana River Floodplain, especia... more With the aim of expanding knowledge about the flora of the Upper Parana River Floodplain, especially of the family Leguminosae, was realized a survey of genus Crotalaria L. (Leguminosae-Faboideae). The study area included the upper stretch of this floodplain, located approximately 22o38’ a 22o57’ S e 53o05’ a 53o36’ W, in the states of Parana and Mato Grosso do Sul, Brazil. The material of the study came from samples taken between August 2009 and April 2012, and from the collection of HUEM herbarium. Six species have been recognized, including three natives: Crotalaria incana L., C. maypurensis Kunth and C. micans Link, one endemic: C. vespertilio Benth., and two subspontaneous in Brazil: C. lanceolata E. Mey. and C. pallida Aiton. An identification key for these species as well their morphological descriptions and illustrations were provided.
Com o objetivo de ampliar os conhecimentos sobre a flora da Mata do Araldo e da planicie de inund... more Com o objetivo de ampliar os conhecimentos sobre a flora da Mata do Araldo e da planicie de inundacao do alto rio Parana, foi realizado um levantamento floristico das plantas vasculares. A area de estudo compreendeu um remanescente de floresta estacional semidecidual submontana perturbado e localizado na margem esquerda do alto rio Parana (53o19’3” W e 22o47’37” S). Foram realizadas 16 expedicoes em diferentes periodos do ano, de junho de 2005 a outubro de 2007. O material testemunho foi incorporado ao Herbario HUEM. Foram levantadas 148 especies reunidas em 124 generos e 60 familias. As familias com maior riqueza de especies foram Fabaceae, Rubiaceae, Euphorbiaceae, Myrtaceae e Solanaceae (28,38% do total) e, dentre os generos foram Eugenia, Casearia, Inga e Cissus (10,13% do total). Quanto ao porte, o arboreo reuniu a maioria das familias, dos generos e das especies. Na Mata do Araldo, 51 especies foram encontradas exclusivamente neste estudo e 56, das registradas anteriormente, n...
Uploads