Gomphostemma aborense Dunn 1920
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 aborense

description: <b> 1. Gomphostemma aborense <i>Dunn</i> (1920: 133)</b> ; Mukercee (1920: 210). Type: India, Eastern Himalaya, Arunachal Pradesh, outer Abor Hills, Janakmukh, at the mouth of the Yamne near Pongging, very common, 19?ec. 1911, <i>3urkill</i> 35269 (holotype K [K000826332]). ?ecumbent herb, up to 30 cm tall. <i>Stems</i> slender, ascending, sometimes rooting at nodes obtusely quadrangular with longitudinal grooves, with dense stellate hairs; internodes curving, always twisting. <i>Leaoes</i> petiolate, chartaceous; blades broadly ovate, 3 – 8 × 3 – 3 cm, apex acute, margin serrate, base cuneate, with dense, stellate hairs on both sides, lower side pale green tomentose; petiolate 10 – 23 mm long. <i>Inflorescence</i> axillary with opposite cymes sessile, unbranched, congested with axis not visible between flowers, inserted at the upper nodes at which leaves are usually present; verticils few-flowered; cluster of small leaf-like bracts, subsessile, persistent, broadly ovate or broadly elliptic-ovate, 10 – 20 × 9 – 13 mm, apex acute, margin serrate, base attenuate; bracteoles linear. <i>Flowering calyx</i> campanulate, 3 – 9 mm long, 10- ridged, outside with dense stellate hairs, inside dense simple hairs; tube 3 – 3 mm long; lobes triangular, 2 – 2 mm long. <i>Fruiting calyx</i> infundibular, 5 – 12 mm long; tube 2 – 6 mm long; lobes triangular, 3 – 6 mm long. <i>Corolla</i> yellow, 13 – 23 mm long, throat narrow, not enlarged, sometimes gradually dilated towards the throat, outside tomentose, inside glabrous; tube slender, straight, 13 – 20 mm long; posterior lip ovate-elliptic, 3 – 3 mm long, spreading, apex emarginate; anterior lip 3-lobed, spreading, slightly undulate, longer than posterior lip; lateral lobes bending downward. <i>Staminal filaments</i> glabrous. <i>Style</i> slender, 13 – 23 mm long, glabrous with apex subequally lobed. <i>Nutlets</i> solitary, obovate, 2 – 3 mm long, minutely glandular punctate. <b>DISTRIBUTION.</b> India (Arunachal Pradesh). Map 1. <b>SPECIMENS EXAMINED</b>. <b>ARUNCHAL PRADESH</b>. Nizamghat, 28°N 93°23&amp;E, 29 Nov. 1928, <i>Ward</i> 8532 (K 2 sheets); outer Abor Hills, Janakmukh, 28.0619°, 93.2392°, at the mouth of the Yamne near Pongging, 19?ec. 1911, <i>3urkill</i> 35269 (holotype K). <b>HABITAT</b>. Open places, old, cultivated ground, secondary growth; alt. 300 – 900 m. <b>CONSERVATION STATUS.</b> <i>Gomphostemma aborense</i> is only known from two localities in India; no new collections have been made since 1928. Although the label of <i>3urkill</i> 35269 (K) mentioned that this species is very common, no new evidence to evaluate the decline of habitats is needed. The?ata?eficient (??) category is applied. <b>PHENOLOGY</b>. Flowering and fruiting in November –?ecember. <b>NOTE</b>. <i>Gomphostemma aborense</i> is easily diagnosed by the curved internodes, stems appearing wavy and cymes subtended by upper leaves and clusters of small leaflike bracts.
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 page 40, DOI: 10.1007/s12225-021-09991-y, http://zenodo.org/record/7615581
description: {"references": ["____ (1920). A revision of the Labiatae of the Indian Empire. Rec. 3 ot. Suro. India 12: 1 - 228."]}