Passiflora maguirei Killip (1948: 415)

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 : 5

Passiflora maguirei Killip (1948: 415) ( Figs. 1L ; 2A–B )

Pollen grains large, prolate spheroidal ( Table 1), polar area small ( Table 2), amb circular, 6-colporate, colpi short, wide, endoaperture lalongate, pontoperculum ( Table 3) does not reduce the width of the apocolpium; sexine reticulate, heterobrochate; muri duplicolumellate, slightly sinuous, continuous, without perforations, columellae high, not apparent, tectum surface mostly straight, lumina ornamented with pila ( Fig. 2B ); there is no difference in the diameter of the lumina of the apocolpium and the mesocolpium; sexine thicker than nexine ( Table 4).

Figures

FIGURE 1. Photomicrographs and electron photomicrographs of pollen grains of the species of Passiflora subg. Astrophea. A–D. P. macrophylla—polar view: A. general aspect; equatorial view: B. apertures, C. general aspect, D. ornamentation detail. Arrows indicate bacula and pila. E–G.P.jussieui—polar view:E. general aspect; equatorial view: F.apertures.G. ornamentation detail. H–K. P. cardonae— polar view: H. general aspect; equatorial view: I. endoaperture, J. general aspect. K. ornamentation detail. L. P. maguirei—polar view: L. general aspect. Scale bar: 10 μm (A–C, E–F, H–J, L); 2 μm (D, G, K).

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).