สำนักราชบัณฑิตยสภา

Taxonomic Revision of the Genus Hedychium J. König (Zingiberaceae) in Thailand (Part 2) 250 The Journal of the Royal Institute of Thailand Vol. 37 No. 1 Jan.-Mar. 2012 teole tubular, 1.5-1.8 cm. by 7-9 mm, apex acute, membranous, glabrous except apex hairy; fourth bracteole tubular, 1-1.4 cm by 4-5 mm membranous. Flowers white to pale yellow, fragrant; calyx tubular, 3.9-4.45 cm by 4-5 mm, apex acute to 3-dented, hairy; corolla tube slender, 5-7.6 cm by 2-3 mm, 3-lobed, lobes linear, 3.6-4.6 cm by 4-6 mm, apex hooded, yellowish; lateral staminodes linear-oblong, 4.2-4.3 cm by 4-5 mm, base attenuate into a 1-1.2 cm by 3-4 mm claw, pale salmon; labellum elliptic-obovate, ca. 4.3 by 2.5-2.8 cm, base attenuate into a 1-1.1 cm by 4-5 mm claw, apex deeply divided, 2.2-2.5 cm, white with pale salmon red patch at base; filament 3.2-3.4 cm long, salmon red; anther dorsified, 1.3-1.5 cm by 2-3 mm, base divaricate, yellowish; ovary 5-6 by 3-4 mm, 3-loculed, placentation axile, villose; epigynous glands 2, slender, 3-4 by 2-3 mm yellowish; stigma densely ciliate, green. Fruits not seen. Thailand. _ NORTHERN: Chiang Mai [Doi Angkhang]; Mae Hong Son [Doi Keiw Lom]. Distribution. _ Endemic to Thailand. Ecology. _ Lower montane scrub at the altitude of 1,000-1,500 m. Phenology. _ Flowering from August-September, fruiting from October- November. Vernacular name. _ Ta Hoen Pa ( ตาเหินป่า ). Note. _ Four taxa of the Hedychium in Thailand, H. muanwongyatiae , H. phuluangense , H. spicatum var. acuminatum and H. spicatum var. spicatum, possess white elliptic-obovate labella and filaments shorter or as long as labella. H. muenwongyatiae is distinguished by its 2-4-flowered bracts, hairy calyx tubes and villous ovaries. 12. Hedychium neocarneum T.L. Wu, K. Larsen & Turland, Novon 10: 91. 2000 [Type: China : Yunnan, Simao, alt. 1000-1900 m; Y.Y. Qian 1832 (holotype SMAO)]; T.L. Wu & K. Larsen in Z.L. Wu & PH. Raven, Fl. China 24: 376. 2000. _ H. carneum Y.Y. Qian, Acta Bot. Austron Sin. 9: 48. 1994; Not Loddiges, Bot. Cab. 7: t. 693. 1823. Figures 6D, 6E and 6F. Terrestrial, perennial herb. Pseudostems 0.6-1.5 m high, leaf sheaths greenish, bladeless sheaths 2-4. Ligule oblong, 2.3-4.0 by 1.3-2.8 cm, apex bilobed-rounded, membranous, pubescent, greenish. Leaves sessile; blade elliptic-oblong, 16.5-32.4 by 7.2-12 cm, base cuneate, apex acute-acuminate, margin entire-slightly undulate, upper surface glabrous, lower surface pubescent. Inflorescence a terminal spike, erect, 11.2-24.5 cm long; peduncle 3.3-4.8 cm long, hairy; bracts, folded, green, obovate-lanceolate, 3.4-4.2 by 1.6-2.8 cm, apex acute, pubescent, each subtending a cincinnus of 2-4 flowers; first bracteole ovate-broadly ovate, 2.3-3 cm by 6-7 mm, apex acute, pubescent, greenish; second bracteole ovate, 1.3-1.6 cm by 4-8 mm, apex acute, pubescent; Flowers white to pale yellow, fragrant; calyx tubular, 3.9-4.6 by 0.3-0.4 cm, apex 3-dented, pubescent except apex; corolla tube slender, 5.3-5.8 cm by ca. 3 mm, 3-lobed, lobes linear, 3.7-5 cm by 2-3 mm,