We present a checklist of the ferns and lycophytes from the Cerrado State Park, Jaguariaíva, Paraná, Brazil. This region represents the southernmost limit of Cerrado vegetation in Brazil. The park is located along the Devonian Escarpment, one of the most iconic geological formations in southern Brazil. The remnants of Cerrado in Paraná are relics of a colder and drier climate that occurred during the Last Glacial Maximum, about 5,600 years ago. They are now surrounded by natural grasslands and Araucaria Forest, which is typical of southern Brazil. We recorded 112 species (102 ferns and ten lycophytes), from 51 genera and 16 families. Ten species were first recorded in the Devonian Escarpment, and Ctenitis bigarellae and Tryonia areniticola are rare. None of the species are endemic to the Cerrado and most are typical of the humid forests of Eastern Brazil. We provide notes and illustrations for all species.
Abstract— Anemia is one of the most diverse genera in Brazil, with about 60 species. Unlike many other ferns, species of Anemia are abundant in dry and rocky environments, with many of them being narrow endemics to the mountains of the Central Brazilian
Cerrado. Besides its richness, several species of Anemia hybridize, and hybrids and polyploids are fairly common in the genus. During a field trip to the northernmost distribution of the Cerrado, we found an undescribed species that we describe herein ‐ Anemia areniticola.
We also describe a new hybrid, Anemia ×pirenopolitana, between two species in the Anemia elegans clade, which is the first record of a hybrid in this clade. We provide morphological descriptions and illustrations, and distribution maps for the new taxa, as
well as comparisons with the most similar species. A key is also provided for the species in the Anemia elegans clade.
O estudo foi realizado no Parque Municipal do Iguaçu (PMI), local que também abriga o zoológico de Curitiba, Paraná/Brasil. A flora aquática do local é bastante significativa, no entanto, nunca foi alvo de estudos. Foi realizado um levantamento florístico das espécies aquáticas presentes em duas lagoas que circundam o PMI. As coletas foram realizadas entre os meses de Abril e Outubro de 2016. Foram registradas 33 espécies, distribuídas em 24 gêneros e 15 famílias. A maior parte das espécies são emergentes e pertencem as famílias Araceae, Cyperaceae, Poaceae e Pontederiaceae. As espécies predominantes foram: Eichhornia crassipes, Pistia stratioides e Typha dominguensis. A ocorrência descontrolada destas espécies indica um ambiente aquático altamente eutrofizado e impróprio para consumo humano.
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