Passiflora, Linnaeus, 1759

Mezzonato-Pires, Ana Carolina, Mendonça, Cláudia Barbieri Ferreira, Milward-De-Azevedo, Michaele Alvim & Gonçalves-Esteves, Vania, 2017, The systematic value of pollen morphology of Passiflora subgenus Astrophea (Passifloraceae), Phytotaxa 298 (1), pp. 1-19 : 13

Passiflora undescribed species

Pollen grains medium-sized, subprolate ( Table 1), polar area small ( Table 2), amb subcircular; colpi long, narrow, endoaperture lalongate, pontoperculum ( Table 3) reduce the width of the apocolpium; sexine reticulate, heterobrochate; muri simplecolumellate, slightly sinuous, continuous, without perforations, without high columellae, not apparent, tectum surface mostly slightly curved, lumina not ornamented; there is no difference in the diameter of the lumina of the apocolpium and the mesocolpium; sexine thicker than nexine ( Table 4).

Each of the five pollen types described above are furthered described and illustrated in Table 5.