Ovary apocarpous, 2-5 carpellate; pericarp fibrous Hunterieae 3.
Calycine colleters absent; corolla salveriform or somewhat funnelform in Haplophyton; corolla-lobe aestivation either sinistrorse or dextrorse; corona absent; style head with or without a basal collar; ovary apocarpous or rarely syncarpous; disc absent, adnate, or inconspicuous.
Calycine colleters absent; corolla salveriform; corolla-lobe aestivation usually sinistrorse (dextrorse in Kopsia, Neisosperma, and Ochrosia); corona absent; style head usually with stigmatic region beneath basal collar; disc normally present; ovary apocarpous (in some Rauvolfia spp.
Calycine colleters mostly present, often multiseriate; corolla salveriform or rarely funnelform; corolla lobes often in-flexed in bud; aestivation almost always sinistrorse; corona mostly absent; anthers with lignified guide rails; style head with stigmatic region beneath basal collar or flange and usually with (often 5-ribbed) upper wreath or style head subglobose and without basal collar and upper wreath and body uniformly receptive; ovary apocarpous or syncarpous; disc adnate, indistinct, or free.
Galycine colleters usually absent; corolla salveriform; corolla-lobe aestivation sinistrorse; small corolline corona often present in petal sinuses (well developed and often annular in Melodinus); anther connective with a apical extension in Diplorhynchus and Dyera and with both apical connective extension and small sterile basal lobes in Pycnobotrya; style head mostly without basal collar or upper wreath; disc usually absent; ovary apocarpous or syncarpous, sometimes only at base (Diplorhynchus), more than half inferior in Dyera.
Calycine colleters mostly present, often multiseriate, rarely absent; corolla salveriform; corolla-lobe aestivation sinistrorse; corona absent; style head uniformly receptive, ovoid to narrowly clavate, with neither basal collar nor upper wreath but often with slender, elongate nonreceptive apices; ovary apocarpous, 2-5-carpellate; disc adnate or indistinct.
Calycine colleters absent or present; corolla salveriform or funnelform; corolla-lobe aestivation sinistrorse; corolline corona often present below the petal sinuses behind stamen (usually much dissected in Allamanda) and infrastaminal appendages generally present; anther connective often broadened and with elongate apical extension; style head mostly with basal collar or lobes (no distinct basal collar in Plumeria, Himatanthus, or Mortoniella), mostly without upper wreath (well-developed upper wreath present in Allamanda) but often with free apices conspicuously enlarged; ovary apocarpous or syncarpous at the very base (postgenitally syncarpous in Allamanda), hemiinferior in Plumeria, Himalatanthus, and Mortoniellar; disc absent or present.
Gynoecium 2 (-3-5) (pentacarpellate in Desfontainia); syncarpous, sometimes apically apocarpous or completely apocarpous (Mitreola); superior to semi-inferior (Mitreola); locules usually as many as carpels (except Anthocleista which has a false septurn) but sometimes with imperfect partitions in their upper portions: style 1 [-2(Cynoctonum)], terminal: stigma capitate (Strychnos) or usually shortly lobed (Plocosperma) or twice dichotomously branched: ovules usually numerous, rarely as few as 1-4, placenta usually peltate or parietal, rarely basal.
Within the Gentianales, the families of the Apocynineae are unique in being the only ones to have a totally apocarpous ovary.