Vascular flora of Southern Brazilian outcrops associated with Atlantic Forest: small relict environment that needs to be preserved

The rocky outcrops in the municipality of Campo Mourão (Paraná State) are all surrounded by remaining Atlantic Forest, unlike the typical outcrops associated with river courses, fields, or hilltops. Because it is such specific vegetation, it is essential to record the floristic composition, verifying only species and the conservation status of local populations. This study cataloged the species of vascular plants occurring in four rocky outcrops areas of Campo Mourão: Nishida outcrop (1,808 ha); Bica do Rio do Campo outcrop (0.458 ha); Perdoncini outcrop (0.228 ha), and Lago Azul State Park outcrop (0.021 ha). A total of 203 collections were analyzed, representing 152 species (eight exotic to Brazil), distributed in 66 families and 135 genera. The more richness families were Poaceae, Asteraceae, Fabaceae, Rubiaceae, and Bromeliaceae. The predominant life form was herbs and shrubs, and most species are terrestrial and rupicolous. The rocky outcrops of Campo Mourão, despite the small total area (25,150 m2), have 10 % of the exclusive species in the municipality. Also, 14 species are endemic in Brazil, and two are endemic in Paraná, being Portulaca hatschbachii (Portulacaceae) officially threatened to extinction in Brazil. In these areas, several species found have been little collected in Paraná State and Brazil, in addition to the presence of life forms adapted to survival on the exposed rock. This demonstrates that despite being small, these sites are critical environments for preserving biodiversity in the region.(AU)

Floristic composition of the Seasonal Semideciduous Forest in Southern Brazil: Reserva Biológica das Perobas, State of Paraná / Composição florística da Floresta Estacional Semidecidual do Sul do Brasil: Reserva Biológica das Perobas, Paraná

This study catalogued the vascular species found in the second largest continuous remnantof Seasonal Semideciduous Forest in the State of Paraná. A total of 425 species distributed among 295genera and 101 families were identified. The most representative families are Fabaceae (27 species),Asteraceae (21), Bignoniaceae (19), Poaceae (19) and Orchidaceae (15). Two species are unique records inthe State of Paraná, in the study area: Bulbophyllum rupicolum Barb.Rodr. (Orchidaceae) and Heladenamultiflora (Hook. & Arn.) Nied. (Malpighiaceae). The predominant life forms are herbs and trees, andterrestrial plants represented the majority of species. We recorded 11 exotic species. It is a large remnantand contains high specific diversity for the region, with a quarter of the species listed for the SeasonalSemideciduous Forest of the State of Paraná.(AU)

Este estudo apresenta o catálogo da flora vascular do segundo maior remanescente de FlorestaEstacional Semidecidual do Paraná. Foram identificadas 425 espécies, distribuídas em 295 gêneros e 101famílias. As famílias mais representativas foram Fabaceae (27 espécies), Asteraceae (21), Bignoniaceae (19),Poaceae (19) e Orchidaceae (15). Duas espécies possuem registro único no estado do Paraná: Bulbophyllumrupicolum Barb.Rodr. (Orchidaceae) e Heladena multiflora (Hook. & Arn.) Nied. (Malpighiaceae). As formasde vida predominante foram plantas herbáceas e arbóreas, e as terrícolas foram maioria no uso de substrato.Foram registradas 11 espécies exóticas. Este é um remanescente de grande extensão e apresenta altadiversidade específica para a região, apresentando um quarto das espécies listadas para a Floresta EstacionalSemidecidual do Paraná.(AU)

Floristic composition of the Seasonal Semideciduous Forest in Southern Brazil: Reserva Biológica das Perobas, State of Paraná / Composição florística da Floresta Estacional Semidecidual do Sul do Brasil: Reserva Biológica das Perobas, Paraná

This study catalogued the vascular species found in the second largest continuous remnantof Seasonal Semideciduous Forest in the State of Paraná. A total of 425 species distributed among 295genera and 101 families were identified. The most representative families are Fabaceae (27 species),Asteraceae (21), Bignoniaceae (19), Poaceae (19) and Orchidaceae (15). Two species are unique records inthe State of Paraná, in the study area: Bulbophyllum rupicolum Barb.Rodr. (Orchidaceae) and Heladenamultiflora (Hook. & Arn.) Nied. (Malpighiaceae). The predominant life forms are herbs and trees, andterrestrial plants represented the majority of species. We recorded 11 exotic species. It is a large remnantand contains high specific diversity for the region, with a quarter of the species listed for the SeasonalSemideciduous Forest of the State of Paraná.

Este estudo apresenta o catálogo da flora vascular do segundo maior remanescente de FlorestaEstacional Semidecidual do Paraná. Foram identificadas 425 espécies, distribuídas em 295 gêneros e 101famílias. As famílias mais representativas foram Fabaceae (27 espécies), Asteraceae (21), Bignoniaceae (19),Poaceae (19) e Orchidaceae (15). Duas espécies possuem registro único no estado do Paraná: Bulbophyllumrupicolum Barb.Rodr. (Orchidaceae) e Heladena multiflora (Hook. & Arn.) Nied. (Malpighiaceae). As formasde vida predominante foram plantas herbáceas e arbóreas, e as terrícolas foram maioria no uso de substrato.Foram registradas 11 espécies exóticas. Este é um remanescente de grande extensão e apresenta altadiversidade específica para a região, apresentando um quarto das espécies listadas para a Floresta EstacionalSemidecidual do Paraná.