Purui (Borojoa sorbilis (Duque) Cuatre.) it is an exotic fruit bowl of Amazônia, belonging to the family of Rubiáceas, being a type of regional, even so still not very known and explored importance. The work was driven with the objective of evaluating the influence of the constant temperatures (20, 25, 30 and 35ºC) and alternate (25-35 and 30-35ºC) on the process germination of the purui seeds. Morphologic aspects of the seeds and seedlings were observed. The rehearsals were accomplished in rolls of paper germitest, in a design entirely randomized with six treatments and four repetitions of 50 seeds. The results showed that the largest germination percentage was obtained for 30ºC (85,5%), however it didn?t differ estatistically of the temperatures of 20, 35 and 30-35ºC. With relation to the vigour observed by the first count of the germination test, it was verified that happened larger percentage for 25-35ºC. The temperature of 25ºC promoted the largest amount of abnormal seedlings and the smallest index of germination speed. It was concluded that the purui seeds are recalcitrant, should be used soon after the crop of the fruit, because they lose humidity quickly. It can be used the temperatures of 30ºC and 30-35ºC in the germination test, that can be contained to the 50 days after the beginning of the test.