Resumo Possuidores de elevada biodiversidade, os campos do sul do Brasil vêm sendo ameaçados por diversos fatores, dentre eles, o avanço das fronteiras agrícolas. Áreas de Preservação Permanente (APPs) podem contribuir para a conservação da biota desses ecossistemas mesmo em paisagens cultivadas. O objetivo deste estudo foi descrever a diversidade florística de quatro APPs inseridas em um plantio comercial de Eucalyptus saligna. localizado em Pantano Grande, Rio Grande do Sul, no bioma Pampa. Durante um ano, excursões mensais foram realizadas utilizando o método do Caminhamento para coleta de material botânico. Foram registradas 295 espécies distribuídas em 60 famílias, as mais representativas foram Poaceae (51 spp.), Asteraceae (51 spp.), Cyperaceae (20 spp.), Fabaceae (17 spp.), Rubiaceae (12 spp.), Solanaceae (8 spp.), Malvaceae (8 spp.) e Myrtaceae (6 spp.), correspondendo 56,27% do total. Sobre a origem, 274 espécies são nativas, quatro das quais endêmicas do Brasil e duas ameaçadas de extinção. Em relação ao hábito, as espécies herbáceas foram predominantes (72,2%), seguido por arbustivas (9,58%), subarbustivas (7,87%), arbóreas (6,16%), e trepadeiras (5,13%). Tanto a proporção das famílias, quanto a relação das espécies identificadas corroboram com levantamentos realizados na região, denotando uma elevada riqueza específica. As APPs avaliadas apresentam elevada diversidade florística, mesmo encontrando-se parcialmente isoladas pelos talhões de plantio comercial de eucalipto.

Abstract Grasslands of southern Brazil are composed of high biodiversity and threatened by several factors, such as the advancement of agricultural frontiers. Areas of Permanent Preservation (APP) can contribute to the preservation of these environments. However, studies on their floristic composition are limited, especially about the herbaceous stratum. The objective of this study is to describe the floristic diversity of four Areas of Permanent Preservation inserted in an Eucalyptus saligna. tree crop farm in Pantano Grande, RS, located in the Pampa biome. For a year, monthly collections were performed by walking along all sampled areas. We identified 295 species distributed in 60 families, which Poaceae (51), Asteraceae (51), Cyperaceae (20), Fabaceae (17), Rubiaceae (12), Solanaceae (8), Malvaceae (8) and Myrtaceae (6) were more expressive, corresponding to 56.27% of total. About the origin, 274 species are native, four are endemic and two are endangered. Herbaceous species were predominant (72,2%), followed by shrubs (9,58%), sub-shrubs (7,87%), trees (6,16%) and vines (5,13%). Both the proportion of the families and the relation of species agree with surveys carried out in the region, denoting a high specific richness. The APP evaluated present high floristic diversity, even though they are partially isolated by the eucalyptus forest.

Abstract Vasconcellea quercifolia A.St-Hil. (Caricaceae) is a non-conventional food plant (PANC) of Brazil. The aim of this study was to investigate the physical, chemical, and nutritional properties of green and ripe fruits and medullary parenchyma of V. quercifolia A.St-Hil., in order to develop functional foods. We determined humidity, pH, ash content, protein content, carbohydrate content, fibre content, carotenoid content, ascorbic acid content, and aminograms of green and ripe fruits and of medullary parenchyma from three specimens, following existing methodologies. Green fruits had higher protein and fibre contents, and ripe fruits had higher ash, carbohydrate, and carotenoid contents, higher than other most consumed fruits. On the other hand, medullary parenchyma had higher ash content and humidity. Glutamic acid, aspartic acid, and lysine were the amino acids with the highest contents, mainly in green fruits. Aside from medullary parenchyma, used as food in the past, both green and ripe fruits can be used for the development of new food products with functional properties and potential for new alternatives for consumption.