Passiflora

Passiflora subgenus Decaloba (DC.) Rchb. Figs 10–11 Passiflora subgenus Decaloba (DC.) Rchb. (Reichenbach 1828: 132). — Passiflora section Decaloba DC. (de Candolle 1822: 435). (244 spp.) Taxonomic description Vines slender; monoecious; tendrils present, entire, adhesive disks absent; stipules minute; glands 2, present or absent on the petiole; leaves simple, entire, or 2–3-lobed in most species; ocelli present or absent; main ribs 3; inflorescences 1-flowered, 2-flowered, or cymose; bracts 3, minute, bracteoles absent; hypanthium flat; flowers yellow-green to white or reddish, corona with red or purplish bands; sepals 5; petals 0 or 5; corona with 1 or 2 series of filaments; operculum plicate; nectariferous disk present or absent; limen annular, lobulate, recurved, or cuculiform; trochlea absent, stamens 5; styles 3, stigmas 3; fruit a berry or a fleshy capsule (Fig. 10). Pollen description Pollen grains medium to large; isopolar; subprolate, oblate-spheroidal, prolate, or prolate-spheroidal; polar area very small or small; amb circular; 6-colporate, 12-colporate, or 12-colpate; colpi long and narrow or wide; endoapertures 0, 6, or 12, lolongate (in most species), lalongate or circular; opercula 0, 3, 6, or 12, pseudopercula 0, 3, or 6, pontopercula 0 or 3, and/or mesocolpia 3 or 6; sexine semitectate (muri continuous, simplicolumellate; lumina small (0.7–8.7 µm); bacula present or absent). Sexine thicker than nexine, total exine 1.0–5.6 µm (Fig. 11).