Gomphostemma hirsutum

(in Walsingham & Bramley 2010: 280); Walsingham (2019: 199). Type: Malaysia, Sabah, Ranau? istr., Kampung Menggis, 29 Aug. 1993, Rumtom [Rumutom] 122 (holotype K [K 000259561]; isotype KEP n. v.). Herb up to 1 m tall. Stems dark brown or black, erect, obtusely quadrangular with longitudinal grooves, densely tomentose with a mixture of dendroid hairs with multicelled stalk, stellate hairs with a 1 - celled or multi-celled stalk and multi-celled simple hairs. Leaoes petiolate, chartaceous; blades elliptic-obovate, narrowly elliptic or narrowly ellipticoblanceolate, 12 – 26 × 3 – 8 cm, apex acute, margin shallowly dentate, base attenuate; upper side with simple hairs; lower side pale green tomentose with a mixture of branched hairs confined to midrib; petioles 10 – 30 mm long. Inflorescence axillary with opposite cymes sessile, unbranched then congested with axis not visible between flowers, inserted at the upper nodes at which leaves are usually present; verticils 1 – 3 - flowered; bracts narrowly ovate or straight falcate, 6 – 10 × 1 – 2 mm, upper side adpressed hirsute or sometimes with bifurcate hairs, lower side with stellate hairs and / or simple hairs; bracteoles linear, 3 – 6 mm long. Flowering calyx infundibular, 10 – 13 mm long, 10 - ridged, outside with long simple hairs and long branched hairs, inside adpressed simple hairs; tube 3 – 5 mm long; lobes triangular, 3 – 6 mm long, apex acuminate. Fruiting calyx not seen. Corolla white or creamywhite, 23 – 23 mm long, throat inflated, abruptly dilated near the throat, outside tomentose with stellate hairs, inside glabrous; tube slender, incurved, 20 – 33 mm long; posterior lip ovate, 3 – 8 mm long, apex and margin slightly undulate; anterior lip 3 - lobed, longer than posterior lip; median lobe 3 – 9 mm long, apex and margin slightly undulate; lateral lobes shorter than median lobe. Staminal filaments fleshy, sparse tomentose. Style slender, slightly shorter than corolla with apex subequally lobed. Nutlets not seen [round white berries: Darnton 183 (BM)].