taxonID	type	description	language	source
C405D317B22B087AFCD2EF80FEE333D2.taxon	description	Lianas. Twigs up to 10 mm diam, glabrous, lenticellate. Stipules caducous, triangular, 1 – 1.5 by c. 1.5 mm, outside glabrous or thinly sericeous, inside glabrous. Leaves with 5 – 9 leaflets; young leaves light green; petiole 3 – 9.5 cm long, striate, glabrous; rachis 4.5 – 11 cm long, striate, glabrous; pulvinus 5 – 10 mm long, glabrous. Stipellae absent. Leaflets chartaceous to subcoriaceous, broader leaflets usually found in plants growing in shadier areas; terminal one (narrowly) elliptic or (narrowly) obovate, 6 – 12.5 by 2.7 – 5.5 cm, length / width ratio 1.6 – 2.2, base cuneate, obtuse to rounded, apex obtuse or slightly emarginate, upper and lower surface glabrous, midrib slightly raised in a furrow above, distinctly raised below, veins raised on both sides, 7 – 15 per side, 5 – 20 mm apart, not reaching the margin but curving upwards, sometimes anastomosing near the margin, venation reticulate; lateral leaflets (narrowly) elliptic to (narrowly) ovate or (narrowly) obovate, 4.5 – 11 by 2.2 – 5.5 cm, length / width ratio 1.8 – 2.2; pulvinus of petiolules 4 – 6 mm long. Inflorescences axillary panicles or sometimes terminal, 11 – 21 cm long, peduncle 5 – 20 mm long, glabrous or thinly strigose, striate; lateral branches 1 – 10 cm long. Bracts subtending lateral branches ovate-triangular, 0.8 – 1.2 by 0.8 – 1.3 mm, outside glabrous to thinly sericeous, inside glabrous but with some hairs at base, margin ciliate, sometimes leaf-like. Brachyblasts absent. Bracts subtending flowers elliptic to ovate, 0.8 – 1 by 0.3 – 0.4 mm, both sides glabrous or with few hairs, margin ciliate. Pedicels slender, 7 – 10 mm long, glabrous. Bracteoles at the upper part of pedicels, narrowly elliptic to ovate, 0.6 – 0.7 by 0.2 – 0.3 mm, both sides glabrous, margin ciliate. Calyx greenish, cup-shaped, 2.5 – 3 mm high, outside glabrous, with hairs near the lobes, inside glabrous, margin ciliate, tube 2 – 2.5 mm high, upper lip indistinct or with two short lobes, 0.2 – 0.3 by 0.7 – 1 mm; lateral lobes triangular or semi-circular, 0.5 – 0.7 by 1.2 – 1.7 mm; lower lobe triangular or semi-circular, c. 0.7 by 1.5 – 1.6 mm. Corolla white or slightly with pale green hue. Standard: claw 3.3 – 3.5 mm long; blade broadly obovate to orbicular, 5.5 – 7 by 5 – 5.7 mm, basal callosities absent, apex emarginate, both sides glabrous. Wings: claw 3 – 3.5 mm long; blade elliptic, 6 – 7 by 1.7 – 2.3 mm, apex rounded, both sides glabrous, upper auricle c. 1 mm long, lower auricle indistinct, lateral pocket 0.7 – 1 mm long, sometimes indistinct. Keel petals: claw 2 – 2.5 mm long; blade boat-shaped, 5.5 – 6 by 2 – 2.5 mm, apex rounded, outside glabrous except for the apical part with few hairs, inside glabrous, upper auricle indistinct, lateral pocket 1 – 2 mm long. Stamens monadelphous, with basal fenestrae, 8 – 9.5 mm long, free part 2.5 – 3 mm long, glabrous; anthers 0.4 – 0.5 by 0.3 – 0.45 mm, glabrous. Disc annular or indistinct. Ovary 4 – 5 mm long, stipe indistinct, slightly hairy; ovules c. 8; style 4 – 4.5 mm long, slightly hairy. Pods elliptic to strap-like, 4.5 – 8 by 1.8 – 2.2 cm, glabrous, with a wing along the upper suture, 2 – 4 mm wide, seed chamber absent but darker area around seed present in pericarp of dry pods, without thickening of the pericarp. Seeds 1 – 2 per fruit or sometimes immature, discoid, flat, 13 – 14 by 10 – 11 by 1 – 2 mm; hilum central, 1 – 1.4 mm long. Distribution — This species is endemic to North-Central Thailand. Habitat & Ecology — This species is found in deciduous forest, seasonally damaged by fire, on rugged limestone terrain in a partly open place at 100 – 375 m altitude. Flowering: De- cember to February; fruiting January to April. Vernacular names — Hang Lai Khao, Hang Lai Khao-Khao Poon. Additional material. THAILAND, Nakhon Sawan, Tham Phet Tham Thong Forest Park, Doi Chawn Duea, Takli Subdistrict, Maxwell 05 - 75 (L), mature infructescence, 25 Jan. 2005.	en	Sirichamorn, Y., Adema, F. A. C. B., Welzen, P. C. van (2014): Derris solorioides (Fabaceae), a new limestone species with true-paniculate inflorescences from North-Central Thailand. Blumea 59 (2): 98-102, DOI: 10.3767/000651914X684862, URL: https://doi.org/10.3767/000651914x684862
