Gomphostemma pelutinum 3 enth.
Creators: name: Bongcheewin, Bhanubong
name: Ingrouille, Martin J.
name: Paton, Alan J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Lamiaceae
Gomphostemma
Gomphostemma pelutinum

description: <b> 23. Gomphostemma pelutinum <i>3enth.</i></b> (Bentham in Wallich 1830b: 13); Hooker (1883: 699); Prain (1891: 269); Mukercee (1920: 212). Type: India, Sillet, Jentya Moutain, Jan. 1829, <i>3ruce</i> s.n. in <i>Wall. Cat.</i> 2509 (K [Herb. Benthamianum, K000928152], lectotype selected here; isolectotype K-W [K001116858]). Erect herb up to 0.2 m tall, without tuber-like roots. <i>Stems</i> slender, upright, sometimes rooting at nodes, obtusely quadrangular with shallowly longitudinal grooves, internodes curving, densely tomentose with stellate hairs and sometimes dendroid hairs. <i>Leaoes</i> petiolate, chartaceous; blades ovate, elliptic, ellipticglobose or elliptic-ovate, 2 – 13 × 2 – 8 cm, apex acute, margin serrate, base attenuate or obtuse, upper side densely tomentose with a mixture of hairs, lower side pale green tomentose with dense stellate hairs; petioles 10 – 30 mm long. <i>Inflorescence</i> 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 – 2-flowered, subtended by the upper leaves; bracts lanceolate or elliptic-oblong, 2 – 10 × 3 – 3 mm long, with dense simple hairs and stellate hairs on both sides; bracteoles linear, 2 – 2 mm long. <i>Flowering calyx</i> infundibular, 9 – 13 mm long, 10-ridged; tube 3 – 6 mm long, outside with simple hairs and stellate hairs, inside with adpressed simple hairs; lobes triangular, 2 – 5 mm long, outside with a mixture of hairs, inside with simple hairs. <i>Fruiting calyx</i> not seen. <i>Corolla</i> white 23 – 30 mm long, throat inflated, abruptly dilated near the throat, outside with sparse simple hairs, inside glabrous; tube slightly incurved, 13 – 23 mm long; posterior lip obovate 10 × 5 mm, apex and margin undulate; anterior lip spreading, as long as posterior lip; median lobe elliptic-obovate; lateral lobes with round apex. <i>Staminal filaments</i> slightly fleshy. <i>Style</i> slender with apex subequally lobed. <i>Nutlets</i> not seen. <b>DISTRIBUTION.</b> India (Assam, Meghalaya), Bangladesh. Map 6. <b> SPECIMENS EXAMINED. INDIA. Assam. <i>Mach</i> s.n. (K [Herb. Hookerianum]); Meghalaya. Jentya Mt [Jaintia], Jan. 1829, <i>3ruce</i> s.n. in <i>Wall. Cat.</i> 2509 (lectotype K; isolectotype K-W);</b> Khasia, Churra, 13 June 1830, <i>Hooker &amp; Thomson</i> 636 (K); Khasia, 1200 m [2000 ft], <i>Hooker &amp; Thomson</i> 28 (P); Mont Khasia, 1200 m [2000 ft], <i>Hooker &amp; Thomson</i> s.n. (BM, C, E, G, L 2 sheets, P); Cherrapuncee, Khasi Hills, 1200 m [2000 ft], 6 July 1932, <i>Chand</i> 6003 (E). <b>HABITAT.</b> In mixed forest or evergreen forest, 200 – 1200 m. <b>CONSERVATION STATUS.</b> <i>Gomphostemma oelutinum</i> is known from five localities and has an EOO of 3020 km 2 exceeding the threshold for Endangered. Google Earth imagery shows the evidence of habitat loss of habitats due to urbanisation. Hence, the Vulnerable (VU) category is applied (VU?2). <b>PHENOLOGY</b>. Flowering and fruiting June – January. <b>NOTES.</b> <i>Gomphostemma oelutinum</i> is recognised by having a soft indumentum on both sides of leaves and slender stems. It is morphologically similar to <i>G. ooatum</i> by having upright stems and curving internodes.
description: Published as part of <i>Bongcheewin, Bhanubong, Ingrouille, Martin J. &amp; Paton, Alan J., 2022, A revision of Gomphostemma (Lamiaceae), pp. 27-92 in Kew Bulletin 77 (1)</i> on pages 69-71, DOI: 10.1007/s12225-021-09991-y, http://zenodo.org/record/7615581
description: {"references": ["Hooker, J.?. (1883). Labiatae, Flora of 3 ritish India 2: 602 - 503. Reeve &amp; Co., London.", "____ (1891). An account of the genus Gomphostemma Wall. Ann. Roy. 3 ot. Gard., Calcutta 3: 225 - 251.", "____ (1920). A revision of the Labiatae of the Indian Empire. Rec. 3 ot. Suro. India 12: 1 - 228."]}