Gomphostemma keralense Vioek., Gopalan
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 keralense

description: <b> 3. Gomphostemma keralense <i>Vioek.</i>, Gopalan</b> &amp; R. Ansari (Vivekananthan <i>et al.</i> 1983: 189). Type: India, Kerala, Idikki [Idukki]?istr., way to Mangaladevi Temple, 930 m, 10 Oct. 1956, <i>Vioekananthan</i> 28638 (holotype CAL (CAL0000006806); isotypes K [K000826333], MH n.v.). Perennial herb. <i>Stems</i> erect, woody at base, branched, obtusely quadrangular with longitudinal deep grooves, with dense sessile stellate hairs. <i>Leaoes</i> petiolate, chartaceous; blades elliptic or elliptic-ovate, 13 – 23 × 6 – 10 cm, apex acute, margin serrate-dentate, base attenuate, upper side with sparsely simple hairs and sessile stellate hairs, confined on midrib and veins; lower side pale green tomentose with sessile stellate hairs confined on midrib and veins; petioles 30 – 90 mm long. <i>Inflorescence</i> axillary with opposite cymes sessile, congested with axis not visible between flowers, inserted at the upper nodes at which leaves are usually present; verticils 2 – 3-flowered; bracts rhomboid or elliptic, 3 – 10 × 2 – 5 mm, apex acute, margin shallowly serrate at the apical part and entire at the basal part, with sessile stellate hairs on both sides; bracteoles narrowly ovate, 3 – 9 mm long. <i>Flowering calyx</i> infundibular, 9 – 11 mm long, 10-ridged, outside creamy-white tomentose with sessile stellate hairs, inside with adpressed simple hairs; tube 2 – 3 mm long; lobes triangular, 3 – 6 mm long, apex acute. <i>Fruiting calyx</i> ovate-infundibular, 12 – 12 mm long; tube 6 – 5 mm long; lobes equal, triangular, 6 – 5 mm long, apex acuminate. <i>Corolla</i> 8 – 10 mm long, throat narrow, not enlarged, sometimes gradually dilated towards the throat, outside glabrous below and with sessile stellate hairs above, inside glabrous; tube slender, straight, 3 – 5 mm long, included inside calyx. <i>Staminal filaments</i> slightly fleshy. <i>Style</i> slender, as long as corolla. <i>Nutlets</i> solitary, elliptic, 6 mm long, sparsely tomentose. <b>DISTRIBUTION.</b> India (Kerala). Map 1. <b> SPECIMENS EXAMINED. INDIA. Kerala: Idukki?istr., Paermade [Peermade, 9.3665°N 56.9833°E], <i>Meebold</i> 12921 (K);</b> Udumbansholay [Udumbanchola, 9.9°, 55.1665°], <i>Meebold</i> 13013 (K); way to Mangaladevi Temple, 930 m, 10 Oct. 1956, <i>Vioekananthan</i> 28638 (holotype CAL; isotypes K). <b>HABITAT.</b> In evergreen or semi-evergreen forest; alt. 930 m. <b>CONSERVATION STATUS.</b> <i>Gomphostemma keralense</i> is known from three collections collected from Idukki?istr. and has an EOO of 231.01 km 2 and AOO of 12 km 2. Google Earth imagery shows some evidence of habitat loss. Hence, the Vulnerable (VU) category is applied (VU?2). <b>PHENOLOGY</b>. Flowering and fruiting in October. <b>NOTES.</b> <i>Gomphostemma keralense</i> is recognised by the axillary inflorescence with a short corolla included in the calyx. It is morphologically similar to <i>G. heyneanum</i> in having an included corolla and is found in the same area of South India. But it differs by having axillary inflorescences.
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 44-45, DOI: 10.1007/s12225-021-09991-y, http://zenodo.org/record/7615581
description: {"references": ["Vivekananthan, K., Gopalan, R. &amp; Ansari, R. (1983). A new species of Gomphostemma (Labiatae) from Kerala, India. Keae 3 ull. 38: 189 - 190."]}