สำนักราชบัณฑิตยสภา

The Journal of the Royal Institute of Thailand Volume III - 2011 129 Pornpimon Wongsuwan and Chayan Picheansoonthon 11. Flowers white-pale yellow 12. Filament longer than labellum 7. H. gomezianum 12. Filament shorter than or as long as labellum 13. Labellum lanceolate-oblong 14. Lower leaf surface glabrous 13. H. pauciflorum 14. Lower leaf surface tomentose 20. H. tomentosum 13. Labellum obovate-elliptic 15. Labellum apex bifid 14. H. phuluangense 15. Labellum apex deeply divided at the base 18. H. spicatum 10. Flowers more than 1 per bract 17. Anther 3-5 mm long 18. Ligules glabrous . Inflorescences bracts greenish 4. H. collinum 18. Ligules villous to pubescent. Inflorescences bracts reddish 21. H villosum 17. Anther longer than 5 mm long 19. Flowers red 3. H. coccineum 19. Flowers white-pale yellow 20. Labellum elliptic, apex bifid 17. H. speciosum 20. Labellum obovate, suborbicular-orbicular 21. Filament shorter than or as long as Labellum 11. H. muanwongyathiae 21. Filament longer than labellum 22. Labellum elliptic-oblong or ovate 23. Labellum elliptic-oblong, base attenuate into 3-4 mm claw 2. H. biflorum 23. Labellum ovate, base attenuate into 0.6-1.4 cm claw 15. H. roxburghii 22. Labellum suborbicular-orbicular 24. Filament white 19. H. stenopetalum 24. Filament pale salmon red 12. H. neocarneum 1. Hedychium aureum C. B. Clarke & Mann ex Baker, in J. D. Hooker, Fl. Brit. Ind. 6: 299. 1894 [Type: India: Khasia Hills, alt. 1,700-2,000 m; Clarke & Mann s.n. (CAL)]. Figures 1 and 4A. Epilithic or epiphytic, perennial herb. Pseudostems 0.4-0.8 m high, bladeless sheaths 2-4. Ligule small, oblong, 1-3 by 4-5 mm, apex obtuse- 126-149_mac9 4/26/12, 9:15 PM 129