The objective of this work was to identify the races of bean anthracnose, Colletotrichum lindemuthianum (Sacc. & Magn.) Scrib. which occurred in two different regions of Rio Grande do Sul, Brazil during the 1964-65 season. A second objective was to discover the sources of resistance to this disease. Nineteen single spore cultures were prepared for inoculation on 161 bean cultivars from IPEAS = Instituto de Pesquisa Agropecuária do Sul, and IPEAME = Instituto de Pesquisa Agropecuária Meridional. These cultivars were grown in the greenhouse. The experimentation was carried out in the greenhouse without temperature control. The North American cultivars used as differential varieties for race identification were: Dark Red Kidney, Michelite and Perry Marrow. The alpha race of this fungus was identified. Only 16.1% of the cultivars tested were resistant to the disease.O trabalho foi conduzido com o objetivo de identificar as raças de antracnose (Colletotrichum lindemuthianum ( Sacc. & Magn.) Scrib.) do feijoeiro (Phaseolus vulgaris L.) que ocorreram no ano de 1964/65 em duas regiões do Rio Grande do Sul e conhecer as fontes de resistência às mesmas. Foram realizadas 19 culturas monospóricas em laboratório e testados em casa de vegetação, sem controle de temperatura, 161 cultivares da coleção de feijoeiro do instituto de Pesquisa Agropecuária do Sul (IPEAS) e Instituto de Pesquisa Agropecuária Meridional (IPEAME), usando-se como diferenciais os cultivares americanos Dark Red Kidney, Michelite e Perry Marrow. Foi identificada a raça "alfa" e apenas 16,1% dos cultivares foram resistentes
