Passiflora venusta R. Vásquez & M. Delanoy, a new species of subgenus Passiflora L. ser. Laurifoliae Killip ex Cervi (Passifloraceae) is described and illustrated. Passiflora venusta differs from the other species belonging to this series by a unique combination of characteristics: flowers are large (ca. 12 cm diam.) and solitary; sepals and petals are white outside and red-purple inside; outside, sepal veins are white whereas petal veins are red; corona filaments are long and the outermost rank of filaments is noticeably shorter and thinner than the second rank; and fruits are 3.9–5.9 cm long with an endocarp no more than 0.5 cm thick.