A 15-month study of the flowering season of the hummingbird flower community was conducted in an evergreen rain forest in the southeastern part of Mexico (Los Tuxtlas, Veracruz). This community comprised at least 11 species of htummingbirds and 26 species of flowering plants. The recorded blooming seasons of the plants show a period of abundant nectar resources for the hummingbirds from February to July with a peak in April, and a period of scarcity of flowers during the last four months of the year. Data are given on the ecological distribution and on the reproductive periods of the hummingbirds studied, and these are briefly discussed in relation to the flower seasonality.