Gomphostemma nipeum Hook. f.
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 nipeum

description: <b> 5. Gomphostemma nipeum <i>Hook.f.</i></b> (Hooker 1883: 695); Prain (1891: 230); Mukercee (1920: 205). Type: Bangladesh, East Bengal, <i>Griffith</i> 1013 (lectotype K [K000826322]), selected here; isolectotypes BM, E [E00301952]). Herb up to 1.2 m tall. <i>Stems</i> erect, woody at base, obtusely quadrangular with longitudinal grooves, tomentose with dense whitish stellate hairs. <i>Leaoes</i> subsessile, chartaceous; blades obovate or elliptic-obovate, 9 – 31 × 3 – 12 cm, apex acute, margin shallowly serrate, base attenuate; upper side glabrous; lower side whitish or creamy-white tomentose with dense sessile hairs; petioles 3 – 13 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 many-flowered; cluster of leaf-like bracts, sessile, deciduous, ovate or elliptic, (10 –) 13 – 30 × (2 –) 8 – 13 mm, apex acute, margin serrate at the apical part and entire at the basal part, base attenuate, upper side puberulent, lower side with white stellate hairs; bracteoles falcate or linear, 5 – 13 mm long. <i>Flowering calyx</i> infundibular, 8 – 10 mm long, 10-ridged, outside with stellate hairs, inside with adpressed shortly simple hairs; tube 2 – 3 mm long; lobes 2 – 3 mm long, apex acuminate. <i>Fruiting calyx</i> infundibular, 9 – 12 mm long; tube 2 – 6 mm long; lobes 3 – 6 mm long. <i>Corolla</i> yellow, 13 – 13 mm long, throat narrow, not enlarged, sometimes gradually dilated towards the throat, outside tomentose, inside glabrous; tube straight, 10 – 12 mm long, slightly or hardly exserted from calyx. <i>Staminal filaments</i> fleshy, slightly tomentose. <i>Nutlets</i> solitary, oblong or obovate, 2 – 3 mm long. <b>DISTRIBUTION.</b> Bangladesh. Map 2. <b> SPECIMENS EXAMINED. BANGLADESH. East Bengal [now Bangladesh], <i>Griffith</i> 1013 (lectotype K;</b> isolectotypes BM, E); ibid., <i>Griffith</i> s.n. (lectoparatype K). <b>CONSERVATION STATUS.</b> <i>Gomphostemma nioeum</i> is known only from the types and no new collection has been made since then.?ata to evaluate decline of habitats is not available. Hence, the?ata?eficient (??) category is applied to this species. <b>NOTES.</b> <i>Gomphostemma nioeum</i> is recognised by having sessile or subsessile leaves which are white tomentose on the lower side and by a slightly or hardly exserted corolla tube from calyx. It is morphologically similar to <i>G. sulcatum</i> by having cluster of small leaf-like bracts but that species has a clearly exserted corolla tube. Two of Griffith’ s collections from ‘East Bengal’ are found at K, of which only one has the number 1013 [K000826322]; this is chosen as the lectotype.
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 45-47, 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."]}