Biochemical Systematics and Ecology 30 (2002) 609–612 www.elsevier.com/locate/biochemsyseco Phytochemical study of Lychnophora markgravii (Asteraceae) Fabiana Terezinha Sartori a , Ana Claudia Barrachi a Costa Sacilotto a , Joa ˜o Luis Callegari Lopes b,* , Norberto Peporine Lopes b , Walter Vichnewski b a Departamento de Quı ´mica, Faculdade de Filosofia, Cie ˆncias e Letras de Ribeira ˜o Preto, USP, 14040-901, Ribeira ˜o Preto, S.P., Brazil b Departamento de Fı ´sica e Quı ´mica, Faculdade de Cie ˆncias Farmace ˆuticas de Ribeira ˜o Preto, USP, 14040-903, Ribeira ˜o Preto, S.P., Brazil Received 14 September 2000; accepted 9 May 2001 Keywords: Lychnophora markgravii; Vernonieae; Asteraceae; Flavonoids; Triterpenes; Sesquiterpene lac- tones 1. Subject and source Lychnophora markgravii G. M. Barroso (Asteraceae, Vernonieae) is a Brazilian endemic and restricted to the Gra ˜o-Mongol and Cabral Hills of Minas Gerais, Brazil. According to Robinson (1999), it is one of 34 species belonging to the Lychnophora genus, including Haplostephium Mart. ex DC. Earlier, Coile and Jones (1981) excluded L. markgravii from Lychnophora, however without reassignment. Roots and aerial parts of L. markgravii were collected in April 1996, by Dr Walter Vichnewski, near the town of Gra ˜o-Mongol, M.G., Brazil. The identification was performed by Dr Joa ˜o Semir, Departamento de Bota ˆnica, Instituto de Biologia, Unicamp, S.P., Brazil, where a voucher specimen has been deposited (UEC35.144, Vichnewski collection # 402). * Corresponding author. Tel.: +55-16-602-4248; fax: +55-16-633-2960. E-mail address: joaoluis@usp.br (J.L.C. Lopes). 0305-1978/02/$ - see front matter  2002 Elsevier Science Ltd. All rights reserved. PII:S0305-1978(01)00127-2