Page 90 - journal-6-1-Full

¯ «“√ “√°“√·æ∑¬å·ºπ‰∑¬·≈–°“√·æ∑¬å∑“߇≈◊Õ° ªï∑’Ë ˆ©∫—∫∑’Ë Ò ¡°√“§¡ - ‡¡…“¬π ÚııÒ

Bull. (Bot.) 19: 5. 1992.
Type: probably Hort. Cliff.
Type: Thailand, Phu Wat (Mukdahan Province), Kerr
This generic type species is one of the impor-
21500 (holotype K)
tant medicinal plants used in Thai traditional medi-
This taxon was described from the specimen cine. It can be readily distinguished from other taxa
collected by A.F.G. Kerr in 1932 from çPu Wat (Nakawn by its two horizontal (flat on the ground), ovate-to-
Panom)é, which is nowadays Phu Wat of Mukdahan suborbicular, unequal-side, sessile leaves with inflo-
Province in northeastern Thailand. The type speci- rescence enclosed in the two leaf-sheaths, and white
men was described as closely related to K. fissa flowers. The lateral staminodes are obovate-cuneate
Gagnep. and K. fallax Gagnep, but it differs in the or oblanceolate and the labellum is divided to the
larger habits and anther crests. All three taxa possess base with a purple blotch at the base. The anther
pure white, night-blooming flowers. The connective crest is 4-5 × 2-3 mm, deeply bilobed, each lobe be-
appendage of this taxon may be described as rectan- ing rounded or unequally toothed.
gular with bifurcate apex, while those of the two lat- This taxon is distributed over a wide range: from
ter species are short bifurcate and square respec- India to Myanmar, China, Thailand, Indochina, Malay
tively. However, these characters, which are used for Peninsula and Java. It can be found in bamboo for-
taxonomic decision-making, are variable, especially ests, often in evergreen and deciduous forests, in all
the length of the leaves and corolla tubes. parts of Thailand. It is widely cultivated in Thai home
During the past few years, the authors have made gardens as the leaves and rhizomes are used for food
several visits to the sites of this taxon in Phu Phan and medicine.
National Park (Sakon Nakhon Province), Phu Wat (type
location, formerly Nakhon Phanom, but now Mukdahan 7. K. glandifolia Saensouk & Jenjitt. in Nord. J. Bot.
Province), Khong Chiam and Sirindhorn Districts 21: 139-140, Figs. 1-2. 2001.
(Ubonratchathani Province), including several other
Type: Thailand, Khon Kaen Province, Kok Phu Takla,
locations in southern Laos, to monitor and study the
Saensouk 55 (holotype BKF)
living populations. At this stage we suspect that this
species may be conspecific to K. fissa Gagnep. A This unique species can be readily distinguished
molecular study to confirm our hypothesis is in by its inflorescences on separate shoots arising from
progress. rhizomes appearing before the pseudostems, the 4-5
large (12.5-20 × 15-20 cm) almost horizontal (near the
6. K. galanga L., Sp. Pl.: 2. 1753; Roxb., Pl. Ind. 1: 5. ground) suborbicular leaves, and the pedunculated
1820; Bak. in Hook., Fl. Br. Ind. 6: 218. 1890; Schum. (0.5-3 cm) inflorescences with pure white flowers. The
in Engl., Pflanzenr. 4(46), 20 Heft: 77. 1904; Gagnep. anther crest of the flower is oblong with a conspicu-
in Lecomte, Fl. Gén. I.-C. 6: 45. 1908; Ridl., Fl. Mal. ously bilobed apex.
Pen. 4:245. 1924; Holtt. in Gard. Bull. Sing. 13:117. So far the taxon is known only from the type
1950; Larsen in Bot. Tidsskr. 58: 201. 1962; Chung, location in a restricted area of Khon Kaen Province in
Lime. Fl. Mal. 2: 703. 1973; Burtt & Smith in northeastern Thailand. The leaves and rhizomes are
Dassanayake, Fl. Cey. 4: 508. 1983; Sirirugsa in Nord. used by the local people for medicinal purposes.
J. Bot. 9: 259. 1989 & in Thai For. Bull. (Bot.) 19: 11.
1992; T.L.Wu & K.Larsen in Z.L.Wu & PH. Raven, Fl. 8. K. glauca Ridl. in J. Asiat. Soc. Bengal: 107. 1899;
China 24: 369. 2000.––K. sessilis König in Retz., Obs. Schum. in Engl., Pflanzenr. 4(46), 20 Heft: 78. 1904;
3: 67. 1783.––K. humilis Salisb., Prodr. 6. 1796.––K. Gagnep. in Lecomte, Fl. Gén. I.-C. 6: 51. 1908; Sirirugsa
plantaginifolia Salisb. in Trans. Hort. Soc. 1: 286. 1808. in Nord. J. Bot. 9: 259. 1989 & in Thai For. Bull. (Bot.)
19: 13. 1992.