Table 4. Morphological comparison between the genera of the Dioclea clade as circumscribed here. CharactersCleobuliaCymbosemaDiocleaMacropsychanthusHabitWoody vines.Woody vines.Woody vines.Mostly lianas, less frequently woody vines or shrubs.StipulesBasifixed.Basifixed.Basifixed.Medifixed or basifixed.InflorescenceAxillary and with an arched axis.Axillary and erect.Axillary and erect.Erect, mostly axillary but frequently cauliflorous.Inflorescence nodesMultiflorous and secundiflorous, sessile, globose.Multiflorous and secundiflorous, sessile.Multiflorous and secundiflorous, sessile.Multiflorous and secundiflorous, stalked.Flower positionResupinate (i.e. the standard petal backwards and the set wing-keel petals upwards).Not resupinate.Not resupinate.Not resupinate.CalyxCylindrical, 4-lobed, the lobes shorter than the tube and of the same length; upper lobe entire and truncate (wider than longer).Campanulate, 4-lobed, the lobes having almost the same length and mathching the length of the tube; upper lobe triangulate.Campanulate, 4-lobed, the lobes having almost the same length and mathching the length of the tube; upper lobe triangulate.Campanulate, rarely cylindrical, upper edge humped or convex, 4-5-lobed or deeply bilabiate, the lower lobe much longer than the remaining.Standard petalPink or purple, pubescent towards the apex, ecallose and spreading or reflexed ca. 90°.Bright red, pubescent towards the apex, ecallose and spreading.Mostly purple, rarely reddish-purple, pubescent towards the apex, ecallose, reflexed.Mostly purple, rarely blue, glabrous, 2-callose, reflexed.Wing petalsDwarf, much shorter than the other petals and sagittate.As long as the keel.As long as the keel.About twice as long as the keel.Keel petalsUpcurved ca. 90° with a truncate apex, upper margin smooth.Straight, oblanceolate, apex rounded, upper margin smooth.Straight, elliptic to obovate, apex rounded, upper margin upper margin dentate, serrate or fimbriate.Triangular or semilunar, extending distally into a slender, obtuse or truncate beak.AndroeciumPseudomonadelphous, the staminal tube pubescent at the base.Diadelphous, the staminal sheath glabrous.Pseudomonadelphous, the staminal tube glabrous.Pseudomonadelphous, the staminal tube glabrous, rarely pubescent at the base.AnthersMonomorphic, all fertile.Monomorphic, all fertile.Monomorphic, all fertile.Mostly dimorphic, 5 fertile alternating with 5 sterile or 6 fertile and 4 sterile or anthers monomorphic and all 10 fertile.Intrastaminal disc10-lobed.Entire with a smooth rim.Entire with a smooth rim.10-dentate or 10-lobed.GynoeciumOvary sessile, 6-8-ovulate; style not swollen.Ovary sessile, 5-6-ovulate; style not swollen.Ovary stipitate, 7-15-ovulate; style not swollen.Ovary sessile, 2-5 (10)-ovulate; style swollen and frequently flattened distally.FruitOblong-linear, elastically dehiscent; thin ribs at the marginsShortly oblong, elastically dehiscent, margins lacking ribs or wingsOblong-linear, elastically dehiscent; upper margin provided with ribs or wings.Various, cylindrical to flat compressed, indehiscent, passively dehiscent or elastically dehiscent; upper margin smooth or provided with ribs or wings.SeedsLenticular with a linear hilum encircling ca. 1/2 of the seed circumferenceLenticular with a linear hilum encircling ca. 1/2 of the seed circumferenceLenticular with a linear hilum encircling ca. 1/2 of the seed circumferenceMassive, orbicular or without a defined shape; hilum linear encircling 1/2 to 4/5 of the seed’s circumference or short and oblong.

Published as part of Queiroz, Luciano Paganucci de & Snak, Cristiane, 2020, Revisiting the taxonomy of Dioclea and related genera (Leguminosae, Papilionoideae), with new generic circumscriptions, pp. 67 in PhytoKeys 164 on page 67, DOI: 10.3897/phytokeys.164.55441