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Tuesday, 2 June 2015

Amazonian Brazilian medicinal plants described by C.F.P. von Martius in the 19th century

Volume 147, Issue 1, 2 May 2013, Pages 180–189

Amazonian Brazilian medicinal plants described by C.F.P. von Martius in the 19th century

Under an Elsevier user license
  Open Access

Abstract

Ethnopharmacological relevance

Information regarding the use of beneficial, native Brazilian plants was compiled by European naturalists during the 19th century. The German botanist C.F.P. von Martius was one of the most prominent naturalists and described the use of several Brazilian plants.

Aim of the study

To present data on Amazonian medicinal plants documented by von Martius in his books.

Materials and methods

Data on Amazonian medicinal plants were obtained from three books published by von Martius. Traditional information about these plants was translated from Latin and the cited plant species reorganised according to current taxonomic criteria. Correlated pharmacological studies were obtained from different scientific databases.

Results

A total of 92 native medicinal species from the Amazon were recorded in von Martius' books. These accounts described 117 different medical uses for these plants. Several parts of the plants were used, including many exudates. The principal use of the species recorded was the treatment of dermatological problems, followed by gastro-intestinal, urinary and respiratory disorders. Few species were recorded as purgatives and febrifuges, a result that differs from the observations of other naturalists. The efficacy of the recorded traditional uses has been confirmed for the few species that have been subjected to laboratory studies.

Conclusion

The data recorded by the German naturalist von Martius represent a rich, unexplored source of information about the traditional uses of Brazilian plants.

Graphical Abstract

Keywords

  • C.F.P. von Martius;
  • Medicinal plants;
  • Amazon;
  • Historical records;
  • Brazil

1. Introduction

Brazil became a Portuguese colony in 1500 and this period produced important records of the use of plants by native Brazilians. Jesuit priests were the first to establish direct contact with the native inhabitants. Other reports followed, including that of Gabriel Soares de Souza, who recorded the use of several plants (Souza, 1938). Brazilian territory remained under rigid colonial control until the early 19th century. This policy was intended to conceal the potential of the country's natural resources from other nations. From 1630 to 1654, northwestern Brazil was occupied by the Dutch. During this period, the physician William Pies described the use of important indigenous drugs, including jaborandi, ipecac, copaiba and tobacco (Pisonis, 1648). In 1808, Bonaparte's invasion of Portugal forced the Portuguese royal family to resettle in Rio de Janeiro. Remarkable progress occurred in the economy and in culture and science during the 13 years that they lived in Rio de Janeiro. During this period, foreigners gained permission to enter the country. Several European naturalists, artists and scientists travelled in the vast Brazilian territory and recorded the mineral, animal and vegetal resources as well as the customs of the inhabitants. The information gathered by naturalists has contributed significantly to the growing knowledge of South American biodiversity and has produced significant advances in understanding of the continent's natural history (Brandão et al., 2008 and Brandão et al., 2011).
Carl Friedrich Phillip von Martius was one of the most prominent naturalists to travel in Brazil. His studies of the country included investigations in botany and anthropology (Schmelz, 2000). He travelled throughout the country, accompanied by the zoologist Johann Baptist von Spix. After their arrival in Rio de Janeiro in November 1817, von Martius and Spix travelled southwards in the direction of São Paulo, proceeded through Minas Gerais over Goiás to Bahia, and then travelled farther north to the Amazon. In Fortaleza da Barra do Rio Negro, today's Manaus, von Martius and Spix separated to make independent journeys to the frontiers of Colombia and Venezuela. In December 1820, they returned to Rio de Janeiro and Munich. The collections made by this important expedition included thousands of natural history specimens. In all, these collections included 86 specimens of mammals, 350 of birds, 130 of amphibians, 116 of fish, 2700 of insects, 6500 types of plants, minerals and a great number of cultural objects from the native tribes (Tiefenbacher, 1994). A substantial number of important publications in the fields of botany and other sciences were also produced. These publications still possess extraordinary scientific value. Von Martius′ comprehensive work “Flora brasiliensis” (http://florabrasiliensis.cria.org.br/) remains the most extensive complete publication about the plants of Brazil. The work of more than 60 years and several specialists was required to produce this substantial project, which comprises 15 volumes divided into 40 parts and containing information on 22,267 plant species, primarily Brazilian angiosperms (et al., and et al.,). The interests of von Martius extended beyond taxonomy to the traditional uses of Brazilian plants (Wuschek, 1989). In this area of study, he published the “Systema de Materia Medica Vegetabilis Brasiliensis” (Systema) as well as “Das Naturell, die Krankheiten, das Arztthum und die Heilmittel der Urbewohner Brasiliens”. The Systema includes detailed descriptions of the origin of popular plant names, scientific names and the traditional/ medicinal use of 730 species (Martius, 1843).
This study aims to retrieve, organise and update information on medicinal plants from the Amazon described in the Systema and to complement these results with data from other studies published by von Martius. The medicinal use of plants was compared and/or confirmed by referring to relevant correlated pharmacological studies if available.

2. Materials and methods

2.1. Ethnopharmacological historical literature survey

The selection of data on Amazonian medicinal plants was based on the Systema de Materia Medicae Vegetabilis Brasiliensis ( Martius, 1843). To access information in the Systema is a difficult undertaking because the data are not always logically organised, often appear incomplete, are taxonomically antiquated and are generally presented in Latin, Portuguese or German. In this report, we restrict our investigations to the plants of the Amazon because the naturalists covered a wide geographical area and because data on the medicinal plants of this region are scarce.
Native species for which data on traditional medicinal use were included and the vernacular names of the plants specified in the Systema were selected for further analysis. The actual botanical names were checked in the Flora Brasiliensishttp://florabrasiliensis.cria.org.br/ and the websites www.theplantlist.org and www.mobot.org. The status of each species as a plant native to Brazil was verified in an official Brazilian species list, “Lista de Espécies da Flora do Brasil” (Jardim Botânico do Rio de Janeiro; http://floradobrasil.jbrj.gov.br).
The traditional uses described by von Martius (in Latin or German) in the bibliography were summarised from the original books, translated into English and included in Table 1. Particular uses such as “chlorosis” (hypochromic anaemia) or “alexipharmaca”, are described in their original format. The uses of certain exotic species, such as Zingiber officinale Roscoe or Sesamum indicum L., were also recorded by von Martius from the Amazon but are not considered in this study. Additional data were obtained from the travel diaries, published from 1823 to 1831 and first translated into Portuguese soon afterwards, in 1838.