ABSTRACT Esenbeckia febrifuga (A.St.-Hil.) A. Juss. ex Mart., Rutaceae, is known by several popular names including quina-do-mato. This name is a reference to the use of its bark as febrifuge and in the past was employed as a substitute of Cinchona sp. for treatment of malaria symptoms. This confusion may have been reinforced by the fact that the bark of these plants are similar in appearance and have a bitter taste. In view thereof this study presents the description morphological and anatomical and the histochemistry of the stem bark and contributes to the pharmacobotanical study of plant drugs identified as Brazilian quinas, in sequence to two others studies. Compared with the Cinchona species, the prismatic shape of calcium oxalate crystals and the fibers with adornate end walls proved to be the main characteristics for differentiation.

Abstract The Brazilian flora is very rich in medicinal plants, and much information about the traditional use of the Brazilian plants is only available from early literature and we are facing a rapid process of loss of biodiversity. To retrieve data about useful plants registered in the books of the Polish physicist P.L.N. Chernoviz, who lived in Brazil for 15 years in the 19th century. The aim is to improve our knowledge about Brazilian plants, and to ensure the benefits of sharing it with potential users. Data about Brazilian plants were obtained from six editions of the book Formulary and Medical Guide (Formulário e Guia Médico), published in 1864, 1874, 1888, 1892, 1897 and 1920. All this information was then organized in boxes, and correlated with pharmacological studies from PubMed and Lilacs. A total of 238 species were recorded and 117 different traditional uses were registered for the plants. The most common uses were to treat general skin diseases and intermittent fevers, as purgative, diuretics and andidiarrheal. From the total, only 61 species (25.6%) have been to date subject to pharmacological studies and had their activities confirmed. Chernoviz books represent an important source of data about plants used in traditional medicine of Brazil. Their records were collected at a time when Brazil's native vegetation was still largely intact, and traditional medicine was practiced based on native plants. We argue that these plants must be prioritized in development of medicines, submitting them to clinical studies or by considering their traditionality, as established by WHO. Strategies for the protection of the traditional knowledge are also necessary.

ABSTRACT This research is part of a larger study of the Brazilian species that are commonly referred to as "quinas" and used as substitute of Cinchona species. In this study, we have performed the botanical characterization of the stem bark of Remijia ferruginea (A. St.-Hil.) DC., Rubiaceae, by morphological and anatomical description, and the analysis of its chemical profile. Stem bark is thin and has the color and the texture of its external and internal surfaces as diagnostic features. Types and sizes of sclerified cells in the cortical parenchyma and in the secondary phloem are important features for analysis of the transversal sections and in the macerate. Alkaloids, flavonoids and chlorogenic acid were detected in the chemical analysis for TLC. These standard references can be used in the quality control of the bark of quinas.

Em trabalho anterior foi descrita a relação das plantas medicinais e produtos botânicos presentes nas quatro edições da Farmacopéia Brasileira (FBRAS). O trabalho discutiu também sobre a substituição das plantas nativas do Brasil por outros produtos importados e sintéticos ao longo das últimas décadas. Neste artigo, são apresentados novos dados sobre plantas medicinais e produtos botânicos presentes na 1ª Edição da FBRAS e em seus dois suplementos.

In a previous work, we described the list of medicinal plants and botanical products present in the four editions of the Brazilian Official Pharmacopoeia (FBRAS). The work also discussed the replacement of native Brazilian plants by imported products and synthetics over the last decades. In this paper, we present new data concerning medicinal plants and botanical products present in the first Edition of the FBRAS an in its two supplements.