A revision of Gomphostemma (Lamiaceae) Author Bongcheewin, Bhanubong Author Ingrouille, Martin J. Author Paton, Alan J. text Kew Bulletin 2022 2022-03-30 77 1 27 92 http://dx.doi.org/10.1007/s12225-021-09991-y journal article 10.1007/s12225-021-09991-y 7615581 23. Gomphostemma hemsleyanum Prain ex Collett & Hemsl . ( Hemsley 1890: 116 ); Prain (1891: 230) ; Mukercee (1920: 205) . Type: Burma, Meiktila [20.8665°, 93.8665°], Sept. 1888, Collett 885 (CAL [CAL0000020312] photo, lectotype selected here; isolectotype K [K000826320]). (Another syntype, Collet 15, has not been seen.) Herb up to 0.6 m tall. Stems erect, obtusely quadrangular with longitudinal grooves, with dense stellate hairs and sometimes dendroid hairs. Leaoes subsessile, chartaceous; blades elliptic or elliptic-ovate, 2 – 13 × 1 – 5 cm, apex acute, margin deeply crenate or serrate, base attenuate; upper side dark green with bifurcate hairs, 1 – 2 (– 3)-celled simple hairs and sometimes stellate hairs; lower side pale green with dense stellate hairs; petiole 0 – 10 mm long. Inflorescence axillary with opposite cymes sessile, congested with axis not visible between flowers, inserted at the upper nodes at which leaves are usually present; verticils fewflowered; bracts elliptic or elliptic-obovate, 10 – 13 × 3 – 6 mm, upper side with simple hairs, lower side with dense stellate hairs; bracteoles narrowly ovate, 3 – 8 × 0.3 – 1 mm. Flowering calyx infundibular, 8 – 12 mm long, 10-ridged, outside with dense stellate hairs, inside with adpressed simple hairs; tube 3 mm long; lobes triangular, 3 – 5 mm long, apex acute. Fruiting calyx ovate-infundibular, 11 – 18 mm long, outside with dense stellate hairs, inside with adpressed simple hairs; tube 3 – 5 mm long; lobes triangular, 6 – 11 mm long, 3 – 2 mm wide at base, apex acute. Corolla 10 – 13 mm long, throat narrow, gradually dilated towards the throat, outside glabrous, inside with an annulus of simple hairs; tube slender, incurved, 3 – 5 mm long, included in calyx. Staminal filaments fleshy. Style slightly fleshy, linear with apex unequally lobed. Nutlets 2, ellipticoblong or elliptic, 3 – 2 × 2 – 3 mm long, wrinkled. DISTRIBUTION. Burma. Map 5 . SPECIMENS EXAMINED. MYANMAR. Meiktila, Sept. 1888, Collett 885 (lectotype CAL photo; isolectotype K). HABITAT. In mountain areas. CONSERVATION STATUS. Known only from the type collection made in September 1888. Hence, the?ata?eficient (??) category is applied to this species. PHENOLOGY . Flowering and fruiting September. NOTES. Gomphostemma hemsleyanum is recognised by having an axillary inflorescence, no soft hairs on leaves and is found in North Burma Keng (1969) recognised a specimen, 3acker 8221 (BO), from East Java as Gomphostemma hemsleyanum probably by comparing the specimen with an illustration [ Ann. Roy. 3ot. Gard. ( Calcutta ) 3 (1891), plate 82] from Prain’ s revision (1891). Unfortunately, this collection has not been examined. The epithet hemsleyanum is dedicated to Mr W. B. Hemsley who assisted Prain preparing a revision of Gomphostemma ( Prain 1891 ) .