Gomphostemma hemsleyanum

(Hemsley 1890: 116); Prain (1891: 230); Mukercee (1920: 205). Type: Burma, Meiktila [20.8665 °, 93.8665 °], Sept. 1888, Collett 885 (CAL [CAL 0000020312] photo, lectotype selected here; isolectotype K [K 000826320]). (Another syntype, Collet 15, has not been seen.) Herb up to 0.6 m tall. Stems erect, obtusely quadrangular with longitudinal grooves, with dense stellate hairs and sometimes dendroid hairs. Leaoes subsessile, chartaceous; blades elliptic or elliptic-ovate, 2 – 13 × 1 – 5 cm, apex acute, margin deeply crenate or serrate, base attenuate; upper side dark green with bifurcate hairs, 1 – 2 (– 3) - celled simple hairs and sometimes stellate hairs; lower side pale green with dense stellate hairs; petiole 0 – 10 mm long. Inflorescence axillary with opposite cymes sessile, congested with axis not visible between flowers, inserted at the upper nodes at which leaves are usually present; verticils fewflowered; bracts elliptic or elliptic-obovate, 10 – 13 × 3 – 6 mm, upper side with simple hairs, lower side with dense stellate hairs; bracteoles narrowly ovate, 3 – 8 × 0.3 – 1 mm. Flowering calyx infundibular, 8 – 12 mm long, 10 - ridged, outside with dense stellate hairs, inside with adpressed simple hairs; tube 3 mm long; lobes triangular, 3 – 5 mm long, apex acute. Fruiting calyx ovate-infundibular, 11 – 18 mm long, outside with dense stellate hairs, inside with adpressed simple hairs; tube 3 – 5 mm long; lobes triangular, 6 – 11 mm long, 3 – 2 mm wide at base, apex acute. Corolla 10 – 13 mm long, throat narrow, gradually dilated towards the throat, outside glabrous, inside with an annulus of simple hairs; tube slender, incurved, 3 – 5 mm long, included in calyx. Staminal filaments fleshy. Style slightly fleshy, linear with apex unequally lobed. Nutlets 2, ellipticoblong or elliptic, 3 – 2 × 2 – 3 mm long, wrinkled.