Table 1. A in Hedychium viridibracteatum X. Hu, a new species from Guangxi Autonomous Region, South China

Table 1. A morphological comparison of Hedychium viridibracteatum with related species. CharactersH. viridibracteatumH. villosum var. villosumH. villosum var. tenuiflorumLiguleOblong-ovate, green or purple, 1.8-2.3 × 1.2-1.5 cm, glabrousOblong, pale pink, 1.8-2.1 × 0.7-0.8 cm, pubescent externallyOblong, pale pink, 2.9-3.4 × 1.3-1.6 cm, densely pubescent externallyLeaf bladesElliptic, purple beneath, 15-25 × 5-8 cm, glabrous on both sides.Elliptic-lanceolate, pale green below, 14-20 × 3.7-4.5 cm, midrib pubescent belowElliptic-lanceolate, pale green below, 34-40 × 8-9 cm, midrib pubescent belowBractOblong-ovate, green, 1.3-1.5 × 0.4-0.5 cm, pubescent outside, 2-4 floweredElliptic, brown, 1.2-1.4 × 0.4-0.5 cm, densely hairy externally; 2-3-floweredLanceolate, brown, 2.7-2.9 × 1.1-1.2 cm, densely hairy externally; 3-4 floweredBracteoleGreen, 1.0-1.1 × 0.3-0.4 cm, pubescent outsideBrown, 1-1.3 × 0.25 cm, densely hairy externallyBrown, 2.1-2.2 × 0.7-0.75 cm, densely hairy externallyFlowersWhite, 10.0-11.0 cm long, lightly fragrant.Pale yellow, 4.7-5.2 cm, highly fragrantWhite with red stamen, 11.8-12.2 cm long, mildly fragrantCalyxPale green, 2.5-2.8 × 0.12-0.15 cm, pubescent outsidePale green, 1.6-1.8 × 0.15 cm, densely pubescent externally, hairs brownPale green, pink tinged towards tip, 3.3-3.7 × 0.2-0.3 cm, densely pubescent externallyFloral tubePure white 4.0-5.0 cm long,Pale yellow, 1.9-2.1 cm longCreamy-white, 5-5.2 cm longCorolla lobesLinear, pure white dorsal lobe 3.1-3.3 × 0.15 cm; lateral lobes 2.9-3.1 × 0.15cmOblong, pale yellow; dorsal lobe 1.6-1.7 × 0.15-0.2 cm; lateral lobes 1.5-1.6 × 0.15 cmOblong, greenish-white, dorsal lobe 4.3-4.4 cm long; lateral lobes 4-4.1 cm longLateral staminodesLinear-ridged, pure white 3.0-3.3 × 0.2-0.4 cm, tip dentateLinear, 1.3-1.5 × 0.15 cm; tip acuteLinear, white with a yellow tinge at base, tip acute, rarely forked 3.3-3.5 × 0.1-0.15 cmLabellumOvate, pure white, 2.8-3.0 × 1.2-1.4 cm, base attenuate into 8-10 × 2 mm claw, apex incised to the middleElliptic, pale yellow, 1.3-1.4 × 0.5 cm, apex deeply divided (sinus 0.8-0.9 cm deep); claw 1 mm wideOblanceolate, white with a yellow tinge at base, 3.1-3.5 × 1.2-1.5 cm, apex deeply divided (sinus 1.9-2.2 cm deep; claw 4-4.5 mm wideFilamentPure white, 6.0-6.8 cm longScarlet, 2.4-2.6 cm longRed, light red towards tip, 5.3-6.3 cm longAntherLight-yellow, 3.5-4 mm longBrown, 1.5 × 1.5 mm longBrown, 3.5 × 2.5-3 mm longFlowering timeSept-OctSep-DecMar-AprPloidyTetraploidDiploidTetraploid