Passiflora amoena Escobar (1994: 203)

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 : 7

Passiflora amoena Escobar (1994: 203) ( Fig. 2I–K )

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

Figures

FIGURE 2. Photomicrographs and electron photomicrographs of pollen grains of the species of Passiflora subg. Astrophea. A–B. P. maguirei—equatorial view: A. mesocolpium. B. ornamentation detail. C–E. P. ovata—polar view: C. general aspect; equatorial view: D. apertures. E. ornamentation detail. F–H. P. quelchii—polar view: F. general aspect; equatorial view: G. apertures. H. ornamentation detail. I–K. P. amoena—polar view: I. general aspect; equatorial view: J. general aspect. K. ornamentation detail. L. P. chlorina—polar view: general aspect. Scale bar: 10 μm (A, C, D, F, G, L). 5 μm (I, J); 2 μm (B, E, H, K).