Abstract A floristic inventory and a taxonomic treatment of Asteraceae from Serra da Confusão do Rio Preto in the state of Goiás are provided. Collections were carried out from July 2017 to December 2018 in a fragment of cerrado sensu stricto with transition to cerrado rupestre (rocky cerrado), for a total of 38 expeditions covering all seasons. Taxonomic treatment of the resulting specimens includes identification keys, diagnoses and descriptions, conservation status, endemism and examined material. A total of 59 species were found, belonging to 32 genera and 10 tribes. The predominant genera were Lessingianthus (8 spp.) and Chromolaena (5 spp.) while the predominant tribes were Vernonieae (19 spp.), Eupatorieae (13 spp.) and Heliantheae (7 spp.). The richness pattern for tribes was the same as recorded in other floristic inventories in the Cerrado domain, especially cerrado sensu stricto. Twenty-one of the species (35.6%) are restricted to Brazil while only Isostigma resupinatum is restricted to the state of Goiás. Conyza primulifolia, Lepidaploa cuiabensis and Lepidaploa sororia were new occurrences for the state.

Resumo Um inventário florístico e um tratamento taxonômico de Asteraceae da Serra da Confusão do Rio Preto no estado de Goiás são apresentados. As coletadas foram realizadas entre julho de 2017 a dezembro de 2018 em um fragmento de cerrado sentido restrito com transição para cerrado rupestre, totalizando 38 expedições abrangendo todas as estações do ano. O tratamento taxonômico dos espécimes resultantes inclui chaves de identificação, diagnoses e descrições, status de conservação, endemismo e material examinado. Ao todo 59 espécies foram encontradas, pertencendo a 32 gêneros e 10 tribos. Os gêneros predominantes foram Lessingianthus (8 spp.) e Chromolaena (5 spp.) enquanto as tribos predominantes foram Vernonieae (19 spp.), Eupatorieae (13 spp.) e Heliantheae (7 spp.). O padrão de riqueza para as tribos foi o mesmo registrado em outros inventários florísticos para o domínio Cerrado, especialmente o cerrado sentido restrito. Vinte e uma espécies (35.6%) são restritas ao Brasil e apenas Isostigma resupinatum é restrito ao estado de Goiás. Conyza primulifolia, Lepidaploa cuiabensis e Lepidaploa sororia são novas ocorrências para o estado.

ABSTRACT Mandevilla calcicola, endemic to limestone formations in Goiás state, Brazil, is described. A key and photos for all Mandevilla species reported in Goiás and Distrito Federal, Brazil, are included. This new species is assessed as Critically Endangered (CR). A short note on the occurrence of geophytes in rauvolfioids and apocynoids (focused on Mandevilla) and its taxonomic value is included.

Resumo Uma nova espécie de Apocynaceae, Ruehssia quirinopolensis, endêmica da Serra da Confusão do Rio Preto e Serra da Igrejinha, Quirinópolis, estado de Goiás, Brasil, é descrita e ilustrada. Ela se assemelha a R. rupestris, diferindo, pela corola branca, adaxialmente vilosa e com tubo mais longo, e pelos lobos da corona com a porção superior lanceolada. Além de um mapa de distribuição para a nova espécie, apresentamos uma chave para identificar as nove espécies de Ruehssia que ocorrem em Goiás. Ruehssia quirinopolensis é avaliada aqui como Criticamente em Perigo (CR).

Abstract A new species of Apocynaceae, Ruehssia quirinopolensis, endemic to Serra da Confusão do Rio Preto and Serra da Igrejinha, Quirinópolis, state of Goiás, Brazil, is described and illustrated. It resembles R. rupestris, differing by the white corolla, adaxially villose and with a longer tube, and by its corona lobes with the upper portion lanceolate. Besides a distribution map for the new species, we provide a key to identify the nine species of Ruehssia that occur in Goiás. Ruehssia quirinopolensis is assessed here as Critically Endangered (CR).

ABSTRACT Initiatives directed at managing information on aquatic plants can support different areas of scientific research, educational practices and political decisions for sustainable management and protection of wetlands and natural resources, as well as reveal knowledge gaps regarding aquatic plants and wetlands. Furthermore, such initiatives can contribute directly to consolidating wetland classification systems in Brazil. The objectives of this work are to present and explore the use of a data repository and online platform created specifically for the management of data on aquatic plants in Brazil. The data repository for aquatic plants was developed to store information on species occurrence records in a standardized form considering: systematics, taxonomy, habit, life form, geographic distribution, hydrographic basin, wetland, bibliographic references and herbarium material. A total of 3,903 records referring to the Southeast Region of Brazil were generated for the data repository. This total encompassed 1,036 species distributed among 132 families and 466 genera. Our results illustrate the diversity of information available regarding aquatic plants, circumscribe this group of species and serve as a source of data about them. Similar databases and electronic infrastructures can be developed for other flora in the future.