Studies related to the understanding of several aspects influence the germination of seeds are essential for the development of protocols for germination and subsequent production of seedlings of native species. Thus, the aim was to study the influence of seed mass and its position in the germination of Bowdichia virgilioides Kunth. Fruits of B. virgilioides were collected directly from matrix trees and opened manually, the seeds being separated according to their position in the fruit (Proximal, 1, 2, 3, 4 , 5, 6 and 7 and distal). The number and mass of the seeds were counted according to the position in the pod. The germination tests was carried out in a completely randomized design, in a 2x7 factorial scheme, with two weight classes (<0.014g and > 0.014g) and seven fruit positions with 4 replicates of 25 seeds. The seed mass and the position of the seeds in B. virgilioides fruit influence the germination and post-seminal growth. Heavier seeds exhibit superior performance to slight in relation to germination and seedling growth. Seeds from the proximal position present germinative performance inferior to the other positions. For the composition of seed lots of B. virgilioides, intended for the production of seedlings, it is recommended that the seedlings be separated by mass and position in the fruits.