Glossocarya longiflora H.R.Fletcher, 1938

2. Glossocarya longiflora H.R.Fletcher View in CoL — Fig. 5b View Fig ; Map 1

Glossocarya longiflora H.R. Fletcher (1938a) View in CoL 205. — Lectotype (desig- nated here): Lakshnakara 284 (lecto E [ E00284135 ] photo; isolecto K [ K000509687 ],BK [ SN257568 ],SING [ SING0111619 About SING ]), Thailand, Saraburi, Keng Koi (Kaeng Khoi).

Woody climber. Stems obtusely quadrangular with finely longitudinal grooves, dark brown, pubescent with reddish brown short hairs, glabrous at base. Leaves elliptic-ovate or ovate, 60–90 by 50–70 mm, apex acute or obtuse, base subcordate, margins entire or sometimes slightly undulate, upper surface glabrescent, lacking sessile glands, lower surface with dark brown, sessile glands and pubescent with short soft hairs; petioles 5–10 mm long, densely pubescent with short brown- ish hairs. Inflorescence terminal, 40–60 by 70–90 mm, cymes slightly compact; bracts oblanceolate, 4–5 mm long, pubescent with short hairs and sessile glands; bracteoles linear or oblan- ceolate, 1–3 mm long. Flowering calyx obconical, 3–3.5 mm long; tube 2–2.5 mm diam at top, pubescent with short hairs outside, glabrous inside; lobes equal, broadly triangular. Fruiting calyx obconical, 3–3.5 mm long; tube 3–4 mm diam at top, pu- bescent with short hairs outside, glabrous inside; lobes truncate with apiculate apex. Corolla white with tube darker in colour than lobes; tube 10–12 mm long, sparsely pubescent with long straight hairs and yellowish glands outside, glabrous inside; lobes unequal, densely pubescent with long subadpressed hairs and yellowish glands outside, glabrous inside; anterior lobe 3–4 by 2.5–3 mm, apex rounded, margins undulate; other lobes 2.5–3 by 1.5–2 mm, apex rounded, margins undulate or some- times entire. Stamens all inserted at corolla throat; filaments 18–20 mm long, glabrous; anthers oblong, c. 0.8 mm long. Style 25 mm long; branches subequal. Fruit oblong, 6–10 by 2–2.5 mm, strigose with short and long subadpressed hairs and yellowish glands; mericarps not winged; seeds 5–7 mm long; carpophore absent.

Distribution — Endemic to Thailand.

Habitat & Ecology — In limestone area, at 100 m elevation. Flowering and fruiting: October.

Conservation status — The species is only known from the type specimen collected from Kaeng Khoi , Saraburi in 1926. This area has been dramatically changed by urban and industrial development. This species is at least Critically Endangered , CR B1 a,b(i,iii,iv) + 2 a,b(ii,iii,iv), though it may be Extinct in the wild. The location was visited and no sign of the species exist and the habitat is now heavily impacted by the neighbouring town and cement factory .

Note — Glossocarya longiflora has a longer corolla that distinguishes it from other species. The species is similar to G. siamensis based on leaf shape and fruit morphology, but it is recognised by having minute sessile glands on the lower leaf surface and the longer corolla, 13–16 mm long.