Espécies arbóreo-arbustivas da família Rubiaceae Juss. na bacia do rio Tibagi, PR, Brasil

Abstract

-(Tree and shrub Rubiaceae Juss. family species along Tibagi river basin, Paraná State, Brazil). Tree and shrub flora of the family Rubiaceae Juss. in the Tibagy river basin, Paraná State, Brazil. Rubiaceae, the fourth largest family of angiosperms in number of species in the world, is renowned by the opposite leaves, interpetiolar stipules, gamopetalous corolla and inferior ovary. Although well represented in the herbaria collections, it has not yet been fully studied in Paraná State. The Tibagy river basin is located in the center-eastern region of the Paraná State and is divided into Upper, Middle and Lower Tibagy, covering 13% of the State's total surface. A number of exsiccates from both the Paraná herbaria collections and the field samplings conducted in the municipalities of the basin were collected, 1053 of which were analyzed. In this study, 18 genera and 35 species were recorded. Among those, Psychotria is the genus with greater species richness. The species Psychotria subtriflora, Psychotria tenuifolia, and Simira corumbensis were identified as new occurrence records for Paraná State and Psychotria fractistipula as a new citation for the State. This survey broadens the taxonomic knowledge of the Rubiaceae family and its role in the flora of the Tibagy basin and in the State of Paraná. Keywords: Asterids, diversity, floristic, Gentianales RESUMO -(Espécies arbóreo-arbustivas da família Rubiaceae Juss. na bacia do rio Tibagi, PR, Brasil). Rubiaceae, a quarta maior família de angiospermas em número de espécies no mundo, é reconhecida pelas folhas opostas, estípulas interpeciolares, corola gamopétala e ovário ínfero. Apesar de estar bem representada nas coleções dos herbários, não tem sido completamente estudada no Estado do Paraná. A bacia do rio Tibagi, localizada no centro-leste do Estado, abrange 13% de sua superfície. É dividida em três regiões: Alto, Médio e Baixo Tibagi. Foram analisadas 1.053 exsicatas, provenientes dos acervos de herbários do Estado do Paraná e de coletas de campo realizadas em municípios da bacia. Neste estudo foram registrados 18 gêneros e 35 espécies, onde Psychotria é o gênero com maior riqueza. As espécies Psychotria subtriflora, Psychotria tenuifolia e Simira corumbensis foram apontadas como novas ocorrências para o Estado do Paraná e Psychotria fractistipula, como nova citação para o Estado. Este trabalho amplia os conhecimentos taxonômicos sobre a família Rubiaceae para a flora da bacia do Tibagi e Estado do Paraná.

Sustainable production of bioactive alkaloids in Psychotria L. of southern Brazil: propagation and elicitation strategies

“…Psychotria spp. are shrubs, arborescent or less frequently herbaceous plants (Dillenburg & Porto 1985;Sobral & Jarenkow 2013) that preferentially occur in shaded understory areas and humid forest soils (Moraes et al 2011;Ferreira-Junior & Vieira 2015). In general, Psychotria (s.l.)…”

Crown quality and hipsometric relationships for Rubiaceae family in water springs of Atlantic forest fragment / Qualidade de copa e relações hipsométricas para a família Rubiaceae no entorno de nascentes de um fragmento de Mata Atlântica

“…(order Gentiales) has about 130 genera and 1500 species naturally distributed in Brazil (SOUZA;LORENZI, 2005). This family provides evidence of the conservation status of plant communities (DELPRETE; JARDIM, 2012), and can be recognized by the presence of simple leaves, opposite, with an entire margin and almost always with interpeciolar stipules VIEIRA, 2015). However, information about their hypsometric behavior is still scarce.…”

Influence of environment on the leaf morpho-anatomy and histochemical of the ayahuasca leaf: Populations cultivated in extra-Amazonian regions

“…Rubiaceae is the fourth-largest family of flowering plants (Robbrecht, 1988;Van Oevelen, Wachter, Robbrecht, & Prinsen, 2003;Jung-Mendaçolli, 2007;Ferreira Junior & Vieira, 2015) standing out among plants of high medicinal, ornamental and economic interests (Gonçalves & Lorenzi, 2007). Among the richest Rubiaceae genus, Psychotria is pantropical, with approximately 2000 species, mainly trees (Mathur, Vyas, Kapoor, & Tyagi, 2011).…”