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There are few studies about perennial crops, including coffee, that relate leaf inclination angle to canopy structure and light distribution. In this study, the differences between structure and theoretical light distribution in the canopy of two coffee progenies with different leaf angles were determined. At the Cenicafe's Naranjal Experiment Station of (Caldas, Colombia), four-year old Coffea arabica L. plants at a planting density of 6,668 plants/ha of the progenies CU1911 (vertically inclined leaves) and CX2391 (horizontally inclined leaves) were evaluated. Seven structural variables associated with foliage and seven associated with stem were measured; nine out of these 14 variables were measured in three profiles of the tree. The Ellipsoidal and Beta functions parameters, extinction coefficient, radiation interception fraction and illuminated leaf area index were mathematically estimated. The comparisons were made with the t-test or Mann-Whitney U test (? = 0.05) between genotypes and with the Duncan test (? = 0.05) between profiles. Characteristics such as leaf size, number of leaves and, to a lesser extent, plant height, show changes that could prove association with light distribution (extinction coefficient) within canopy as well as with leaf angle. The radiation interception fraction and the illuminated leaf area index suggest different theoretical photosynthetic performances. Branch growth was not associated with the light gradient.