Flowers of Paepalanthus caryonauta (A−O) and suspected hybrid (P). A−G Pistillate flowers in anthesis A Involucral bract subtending flower B Whole flower C Sepal (abaxial) D Petal, adaxial E Petal, abaxial F Flower with one petal and two sepals removed G Gynoecial nectaries H−I Staminate flowers in anthesis H Floral bract I Flower J Staminate flower showing post-anthesis thickening, two anthers fallen K−L Mature diaspores M Diaspore with sepals removed, with thickened petals N−O Seeds P Mature flower of probable hybrid (Roldán 402), with seed. (A−I, NValenzuela 8117J−KDudley 11060L, OBoyle 4219MDudley 11194).