J. Jpn. Bot. 88: 297–308 (2013)

Three New Species of () from Thailand and Laos

a,b a Boonmee Phokham , Pornpimon Wongsuwan a,c,d, and Chayan Picheansoonthon *

aFaculty of Medicine, Mahasarakham University, 269 Nakhon Sawan Road, Amphoe Mueang Maha Sarakham, 44000 THAILAND; bDepartment of Pharmacy Technique, Sirindhorn College of Public Health, Chonburi, Amphoe Mueang Chon Buri, 20000 THAILAND; cFaculty of Pharmaceutical Sciences, Khon Kaen University, Amphoe Mueang Khon Kaen, 40002 THAILAND; dThe Academy of Science, The Royal Institute of Thailand, Sanam Suea Pa, Sriayudhaya Road, Khet Dusit, Bangkok, 10300 THAILAND *Corresponding author: [email protected]

(Accepted on May 11, 2013)

Three new Kaempferias, Kaempferia udonensis Picheans. & Phokham and K. picheansoonthonii Wongsuwan & Phokham from northeastern Thailand and K. xiengkhouangensis Picheans. & Phokham from Lao PDR (Zingiberaceae), are described and illustrated. Relationship with their closely related taxa is also discussed.

Key words: Kaempferia picheansoonthonii, Kaempferia udonensis, Kaempferia xiengkhouangensis, Lao PDR, new species, Thailand, Zingiberaceae.

The Kaempferia L. is a medium-sized (Picheansoonthon and Koonterm 2009a), and K. genus of the Zingiberaceae. The emerald triangle sawanensis Picheans. (Picheansoonthon 2009), (the areas around the Mekong basin in southern while four new taxa were newly described for Laos, northeastern Thailand, and northern Thailand: K. sisaketensis Picheans. & Koonterm Cambodia) is the center of diversity of this (Picheansoonthon and Koonterm 2009b), K. group. Several members of the genus have been lopburiensis Picheans. (Picheansoonthon 2010), used ethnobotanically, particularly in traditional K. saraburiensis Picheans. and K. koratensis and indigenous medicine (Picheansoonthon and Picheans. (Picheansoonthon 2011). Koonterm 2008a). The genus Kaempferia can roughly be Recent studies on the genus in this region classified into two groups: the K. galanga group have led to recognition of several new species. and the K. rotunda group. Members of the Five new species were reported from Lao PDR: latter group are characterized by inflorescences Kaempferia chayanii Koonterm (Koonterm appearing from the leafless rhizomes, generally 2008), K. champasakensis Picheans. & at the end of March to early May (known Koonterm (Picheansoonthon and Koonterm in the west as the “spring-blooming”). This 2008b), K. gigantiphylla Picheans. & Koonterm, Kaempferia group has horticultural potential, K. attapeuensis Picheans. & Koonterm some of which are available in both domestic

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Fig. 1. Kaempferia udonensis Picheans. & Phokham. A. Habit. B. Roots, rhizome and and inflorescence. C, D. Bracts. E. Bracteole. F. Flower (top view). G. Ovary and calyx tube. H. Dorsal corolla lobe. I, J. Lateral corolla lobes. K, L. Lateral staminodes. M. Labellum. N. Anther and anther crest with variable apeces. O. Ovary, stylodial glands, and lower part of the style. P. Fruit with persistent calyx tube. Q. Seeds. Drawn by Bordin Laowwongsar. October 2013 The Journal of Japanese Botany Vol. 88 No. 5 299

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Fig. 2. Kaempferia udonensis Picheans. & Phokham. A. Inflorescence. B. Roots (with fusiform tuberous roots), rhizome and an inflorescence. C. Flower showing characteristic large anther crest with variable apex. D. Fruit and red seeds capped with white membranous aril. E. Lower part of a leaf showing a red ligule and petiole. F. Leaves with several silvery markings. Photographed by Chayan Picheansoonthon. and worldwide markets. Taxonomic treatments In Thailand and Laos, there are previously 1. Kaempferia udonensis Picheans. & Phokham, three known “spring-blooming” taxa, i.e., sp. nov. [Figs. 1, 2] L., K. grandifolia Saensouk Type: THAILAND. Changwat Udon Thani, & Jenjitt., and K. lopburiensis Picheans. Amphoe Nong Wua So, Tambon Mak Ya, Khao (Picheansoonthon 2010). In this paper, we Nokyoong Thong, 17°12.287′N 102°38.261′E, further recognize two new “spring-blooming” alt. 360 m, 31 March 2011, C. Picheansoonthon species, from Thailand and Lao PDR. In this & B. Phokham 310311-1 (holotype–BKF; paper, a new unifoliate Kaempferia taxon from isotype–BK, SING). Thailand is also added. This new species is morphologically similar to Kaempferia lopburiensis Picheans., but 300 植物研究雑誌 第 88 巻 第 5 号 2013 年 10 月

Table 1. Morphological comparison between Kaempferia lopburiensis Picheans. and K. udonensis Picheans. & Phokham Characters K. lopburiensis K. udonensis Bladeless sheaths glabrous pubescent Leaves Sheath glabrous pubescent Shape suborbicular to orbicular elliptic to orbicular Upper surface pale green with light purple band along the green with several white markings, light reddish margin, sparsely hairy band along the margin, glabrous Lower surface pale green reddish brown Petiole – 1.5–2 cm Inflorescence Peduncle 0.5–1.3 cm long 1.1–3 cm long Number of flowers 7–10 5–30 Flowers Calyx tube apex 3-lobed apex 2-lobed Anther crests rectangular to broadly obovate, 0.7–1 cm × rectangular, 4–9 × 7 mm, apex acute to trifid 3–5 mm, apex tri-dent to crenate Stylodial gland 1 2 Seeds greenish to brownish reddish differs in the following characters: (1) petiolate 1.7–3 cm × 4–5 mm, apex acute, hooded; lateral leaves [1.5–2 cm long], (2) hairy leaf sheaths, corolla lobes oblong to narrowly ovate, 1.5–2.8 (3) glabrous upper leaf surfaces with abundant cm × ca. 4 mm, apex acute; staminodes broadly silvery markings, (4) two stylodial glands, and obovate, light purple, 1.3–2.5 × 1.3–1.8 cm., (5) red seeds with white membranous aril. apex rounded; labellum light purple, deep purple Perennial herb. Rhizomes short, erect, with at base, broadly obovate, 1.9–2.7 × 2.2–2.9 fusiform tuberous roots. Leaves 3; petiole cm, apex divided almost to the base, each lobe 1.5–2 cm long, hairy; blades horizontal near the broadly obovate, 1.2–1.5 × 1–1.3 cm, apex ground, elliptic to orbicular, 10–30.6 × 7.1–22.1 rounded; anther 4–6 mm long, anther crest white cm; base cuneate to obtuse; apex cuspidate to to violet, rectangular, 4–9 × 4–7 mm; ovary acuminate; margin slightly undulate, reddish; rectangular, 3–6 mm long, pubescent; stylodes upper surface green with several silvery 2, filiform, ca. 5 mm long. Fruits fleshy, ovate, markings, hairy at the base of the midrib, oblong to obovate, 1.2–3.3 cm × 0.8–1.3 cm. lower surface reddish brown, pubescent; ligules Seeds numerous, ovate, reddish, ca. 2 × 3 mm; broadly triangular, 0.7–2.5 cm long, apex capped with whitish membranous aril. obtuse, hairy. Inflorescences produced toward Distribution: This new species is so far only end of the dry season from leafless rhizomes, known from the type locations in Changwat peduncle 1.1–3 cm long, hairy. Flowers 5–30; Udon Thani, Thailand. sterile bracts 3, broadly ovate to ovate, 1–4.9 × Ecology: In lowland dry deciduous forest at 0.8–3.1 cm; bracts ovate, 2.9–4.2 × 0.6–1.5 cm, an altitude around 360 m. It grows along with apex acute, hairy; bracteoles lanceolate, 1.1–2.1 other gingers, e.g., Kaempferia aff. angustifolia cm × 4–5 mm, apex 2-lobed, apex of each lobe Roscoe, K. aff. siamensis Sirirugsa, Curcuma acute, hairy; calyx tubular, 2.8–6 cm long, split parviflora Wall., Boesenbergia baimaii on one side, 1.3–1.5 cm long, hairy, apex bifid; Saensouk & K. Larsen. corolla tube, 5–8.5 cm long, whitish, glabrous; Vernacular name: Wan Pro Lai (วานเปราะลาย่ ), dorsal corolla lobe oblong to narrowly ovate, Wan Toobmoob Bai Lai (วานตูบหมูบใบลาย่ ). October 2013 The Journal of Japanese Botany Vol. 88 No. 5 301

Fig. 3. Kaempferia picheansoonthonii Wongsuwan & Phokham. A. Habit. B. Bracts. C. Bracteole. D. Ovary and calyx tube. E. Flower (top view). F. Dorsal corolla lobe. G, H. Lateral corolla lobes. I, J. Lateral staminodes. K. Labellum. L. Anther and anther crest. M. Ovary, stylodial glands and lower part of the style. N. Fruit with persistent calyx tube. O. Seeds. Drawn by Bordin Laowwongsar. 302 植物研究雑誌 第 88 巻 第 5 号 2013 年 10 月

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Fig. 4. Kaempferia picheansoonthonii Wongsuwan & Phokham. A. Habit in its type location. B. Close- up view of a (showing the single leaf and a flower). C. Flower showing corolla lobes, staminodes, labellum and anther crest. D. Side-oblique view of a flower. E. Inflorescence (showing bracts, a flower and a peduncle). F. Fruit and seeds. Photographed by Chayan Picheansoonthon (A, C, D, F) and Boonmee Phokham (B, E).

Note: This new species is morphologically K. lopburiensis. The larger rectangular anther closed to Kaempferia lopburiensis Picheans. in crest with variable apex is characteristic. its habitat, habit and floral structure.Kaempferia Character comparison of these two taxa is lopburiensis grows on the lime stone forest while shown in Table 1. K. udonensis are found in the dry deciduous Other materials studied: THAILAND. Type location, forest. Both taxa are spring-blooming, following 16 June 2011, C. Picheansoonthon & B. Phokham 160611- 1 (BKF). by 2–3 large prostate leaves. However, the whole population of this new species shows pubescent 2. Kaempferia picheansoonthonii Wongsuwan leaf sheaths and petiolate leaves with numerous & Phokham, sp. nov. [Figs. 3, 4] silvery markings on upper surface and reddish- Type: THAILAND. Changwat Udon Thani, brown lower leaf surface. The floral structure of Amphoe Nong Wua So, Tambon Mak Ya, Khao this new species somewhat resembles those of Nokyoong Thong, 17°12.303′N 102°38.275′E, October 2013 The Journal of Japanese Botany Vol. 88 No. 5 303

Fig. 5. Kaempferia xiengkhouangensis Picheans. & Phokham. A. Habit. B. Roots, rhizome and an inflorescence. C, D. Bracts. E. Bracteole. F. Flower (top view). G. Calyx tubes. H. Dorsal corolla lobe. I, J. Lateral corolla lobes. K, L. Lateral staminodes. M. Labellum. N, O. Anthers, stigma and anther crests. P. Ovary with part of the style and the stylodes. Q. Fruit with persistent calyx tube. R. Seeds. Drawn by Bordin Laowwongsar. 304 植物研究雑誌 第 88 巻 第 5 号 2013 年 10 月

Table 2. Morphological comparison between Kaempferia picheansoonthonii Wongsuwan & Phokham and K. siamensis Sirirugsa Characters K. picheansoonthonii K. siamensis Leaf Bladeless sheath 2–3, 0.5–7.1 cm long none report Leaf-sheath 2.5–8 cm long 2–3 cm long Inflorescence Peduncle 1–4.5 cm long sessile Flower Bract cuneate, 1.3–1.6 cm × 3–5 mm, reddish brown keeled, lanceolate, ca. 2 cm × 4 mm, ciliate spot, glabrous Bracteole 1–1.3 cm long ca.1.5 cm long Calyx tube 1.6–2.2 cm long, apex acute ca. 3 cm long, apex bifid Corolla tube 2.9–4.5 cm long, reddish brown spot; dorsal ca.3 cm long, lobes linear, white; dorsal corolla corolla lobe 1.8–3.0 cm × 5–7 mm, reddish lobe ca. 2.3 cm × 3.5 mm, white; lateral corolla brown spot; lateral corolla lobes 1.5–2.6 cm × lobes ca. 2 cm × 3 mm, white 3–6 mm, reddish brown spot Staminode obovate, 1.4–2.2 cm × 7–10 mm, apex rounded oblong, ca. 2 cm × 5 mm, apex rounded, slightly undulate Labellum broadly obovate, 1.5–2.3 × 1.7–2.3 cm obovate–cuneate, ca. 2 × 1.5 cm Anther crest 3–4 × 4–6 mm, deeply bilobed, each lobe ca. 5 × 2.5 mm, deeply bilobed, each lobe lanceolate, overlapped, orbicular, 2–4 × 2–4mm, apex equal or rarely unequal, apex acute rounded alt. 382 m, 16 June 2012, C. Picheansoonthon & flowers 5–17. Bracts cuneate, 1.3–1.6 cm × 3–5 B. Phokham 160612-1 (holotype–BKF; isotype– mm, apex acute, reddish brown spot, glabrous. BK, SING). Bracteole, lanceolate, 1–1.3 cm × 2–3 mm, This new species is morphologically similar apex 2-lobed, acuminate, reddish brown spot, to Kaempferia siamensis Sirirugsa, but differs glabrous. Calyx tubular, 1.6–2.2 cm long, split in the following characters: (1) inflorescence on one side, 4–6 mm long, reddish, glabrous, pedunculate [1–4.5 cm long], (2) shorter calyx apex acute. Corolla tube, 2.9–4.5 cm long, tube (1.6–2.2 vs. ca. 3 cm), (3) reddish corolla reddish brown spot, glabrous; dorsal corolla tube, (4) white corolla tubes and lobes with lobe broadly lanceolate, 1.8–3 cm × 5–7 mm, brown-spotted, (5) larger obovate staminodes, reddish brown spot, apex hooded, acuminate; and (5) larger obovate labellum (see table 2 for lateral corolla lobes broadly lanceolate, 1.5–2.6 comparison). cm × 3–6 mm, reddish brown spot, apex acute. Perennial herb, rhizome bearing several roots Staminodes obovate, purple, 1.4–2.2 cm × 7–10 in a fascicle. Leaf 1, sessile, blade horizontal near mm, apex rounded. Labellum purple, deep the ground, broadly elliptic to orbicular, 7.8–15.7 purple at base, broadly obovate, 1.5–2.3 × 1.7– × 4.3–13.8 cm, base rounded, apex mucronate to 2.3 cm, divided to the middle, each lobe broadly acute, margin entired, upper surfaces glabrous, obovate, 1.2–1.8 × 0.7–1.2 cm, apex rounded. lower surface reddish brown, glabrous; leaf- Stamen sessile, anther 4–5 mm long, anther crest sheaths 2.5–8 cm long, glabrous; bladeless orbicular, 3–4 × 4–6 mm, deeply bilobed, each sheath 2–3, 0.5–7.1 cm long, apex rounded; lobe overlaped, orbicular, 2–4 × 2–4 mm, apex ligule inconspicuous. Inflorescence, peduncle rounded. Stigma funnel-shaped. Ovary oblong, 1–4.5 cm long, enclosed by the leaf sheaths; 3–4 × ca. 2 mm, glabrous, 3-locular, placentation October 2013 The Journal of Japanese Botany Vol. 88 No. 5 305

Table 3. Morphological comparison between Kaempferia rotunda L. and K. xiengkhouangensis Picheans. & Phokham Characters K. rotunda K. xiengkhouangensis Leaf Number 2–4 5–6(–8) Petiole 1–2 cm long, hairy sessile Leaf sheath 6–10 cm long 4.5–23.5 cm long Shape and size elliptic to lanceolate-oblong, (7–)12–25 (–36) × broadly elliptic to lanceolate, (10–) 22.5–42.5(–55) 4–6(–11) cm long × 7.6–12.2(–17) cm long Inflorescence Peduncle shortly pedunculated 0.9–2.9 cm long Flower Bracteole keeled, lanceolate,1.8–2.3 × ca. 1cm long, apex broadly lanceolate,1.1–1.5 cm × 2–6 mm, apex 2 acute, ciliate lobes acuminate, reddish, hairy Calyx tube ca. 3 cm long, glabrous 5.1–5.5 cm long, reddish, hairy Staminodes white or light purple, oblong, ca. 2 × 0.5 cm, purple, obovate, 2.5–3 × 1–1.6 cm, apex rounded to apex rounded, slightly undulate apiculate Labellum purple, obovate-cuneate, ca. 2 × 1.5 cm, divided deep pink at base, broadly obovate, 2.5–3 × 2.8–3.7 to the middle cm, divided to the base axile, ovules many; stylodes 2, filiform, very This new species is morphologically closed slender, ca. 2 mm long. Fruits fleshy, obovate, to Kaempferia siamensis Sirirugsa in its habitat reddish brown, 1–1.5 cm × 6–8 mm. Seeds and habit, particularly the unifoliate habit, but many, broadly ovate, reddish at cap, ca. 3 × ca. 2 different in its floral shape and form. mm; capped with whitish aril. Character comparison of these two taxa is Distribution: This new species is so far only shown in Table 2. known from the type locations in Changwat Other materials studied: THAILAND. Type location, 2 Udon Thani, Thailand. June 2012, C. Picheansoonthon & B. Phokham 020612-1 Ecology: In lowland dry deciduous forest at (BKF). an altitude around 382 m. It grows along with other gingers, e.g., Kaempferia udonensis, K. aff. 3. Kaempferia xiengkhouangensis Picheans. & siamensis Sirirugsa, Curcuma parviflora Wall., Phokham, sp. nov. [Figs. 5, 6] Boesenbergia baimaii Saensouk & K. Larsen. Type: LAO PDR. Xiengkhouang District, Vernacular name: Wan Pro Bai Diew Mueang Kham, 19°33.139′N 103°44.384′E, alt. (ว่านเปราะใบเดี ่ยว). 600–720 m, 25 March 2011, C. Picheansoonthon Note: Based on the form and shape of & B. Phokham 250311-1 (holotype–BKF; the flowers, the genus Kaempferia can be isotypes –BK, SING). classified into two groups: the K. galanga group This new species is morphologically similar (staminodes and labellum large and planar, to Kaempferia rotunda L., but differs in the generally perpendicular or almost perpendicular following characters: (1) 5–6(–8) sessile leaves, to corolla tube) and the K. angustifolia group (2) much longer peduncle (0.9–2.9 cm), (3) (staminoded and labellum slender and not planar, longer hairy calyx tubes, and (4) larger obovate generally not perpendicular to corolla tube). This labellum with bilobe apex (divided to base). new taxon belongs to the first group. However, it Perennial herb, 29.5–58.3(–80) cm tall. is the first and only species with one leaf known Rhizomes short, erect, bearing several roots in this group. in a fascicle. Leaves 5–6(–8), sessile; blade 306 植物研究雑誌 第 88 巻 第 5 号 2013 年 10 月

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Fig. 6. Kaempferia xiengkhouangensis Picheans. & Phokham. A–B. Inflorescences. C. Roots (with fusiform tuberous roots), a rhizome and two inflorescences. D. Flower showing characteristic rectangular anther crest. E. Infructescence (bracts removed to reveal a fruit). F. Habit in the type location. Photographed by Chayan Picheansoonthon. distichous, broadly elliptic to lanceolate, cm long, split on one side, 1.2–1.5 cm long, (10–)22.5–42.5(–55) × 7.6–12.2(–17) cm, reddish, hairy, apex trifid; corolla tube 6.3–7.5 base cuneate, apex acute to acuminate, margin cm long, whitish, glabrous; dorsal corolla lobe slightly undulate, upper surfaces glabrous, narrowly lanceolate, 3–3.4 cm × 3–5 mm, apex lower surface pubescent; leaf-sheaths 4.3–23.5 hooded; lateral corolla lobes narrowly lanceolate, cm long, sparsely hairy; ligules membranous, 2.5–3.2 cm × 2–4 mm, apex acute; staminodes 2 lobes, 4–8 mm long. Inflorescence appearing obovate, deep pink, 2.5–3 × 1–1.6 cm, apex from leafless rhizomes, peduncle 9–29 mm rounded to apiculate; labellum deep pink, violet long. Flowers 10–19; bracts ovate to broadly at base, broadly obovate, 2.5–3 × 2.8–3.7 cm, ovate, 1.4–2.6 cm × 4–9 mm, apex acute, hairy; divided to the base, each lobe obovate, 1.8–2.2 bracteole 1, 1.1–1.5 cm × 2–6 mm, apex 2 lobes, × 1.4–1.9 cm, apex rounded to apiculate; stamen acuminate, reddish, hairy; calyx tubular, 5.1–5.5 sessile, anther 4–7 mm long, anther crest ovate October 2013 The Journal of Japanese Botany Vol. 88 No. 5 307 or rectangular, 6–8 × 2–3 mm, apex bilobe, This research project is part of the five- tri-dent, or variable; stigma funnel-shaped; year project entitled “Studies on fundamental ovary cylindrical, 4–5 × 2 mm, sparsely hairy, botanical knowledge and DNA fingerprints of 3-locular, placentation axile, ovules numerous; the Thai medicinal Wan”, financially supported stylodes 2, filiform, 4–7 mm long. Fruits fleshy, by the Thai Traditional Medical Knowledge obovate-oblong to oblong, 1.2–1.8 cm × 6–9 Fund of the Ministry of Public Health. The mm. Seeds numerous, narrowly ellipsoid to author would like to thank Mr. Hiroyuki ovate, brownish, ca. 3 × 2–3 mm; capped with Wakahara and Ms. Sonephet Phonsavanh from whitish aril. Bionet® Lao Co. Ltd. for leading us to the Distribution: This new species is widely and its type location; staffs of K, P, SING, BK, distributed in the limestone ridges in Mueang BKF, PSU and QBG for herbarium accesses; Kham of Xiengkhouang District, Lao PDR. Mr. Bordin Laowwongsar for line drawing; Several large populations were discovered in the staffs of our research group: Mr. Jeeradej Mayoe, areas 50 kilometers around the type locations. Mr. Kamthorn Intharaphichai, Mr. Methee Ecology: The new species grows on Pholkham, Mr. Piyapong Yupparach, Mr. limestone soils or rocks, under the shade in dry Prathueng Ruengmontri, Dr. Pumin Sumamarn, deciduous forest, at an altitude of 600–720 m. Mr. Somsak Phonsavanh and Mr. Supakorn Vernacular Name: Unknown. Thongmeemar, for field assistances. Note: Concerning the plant habit, the spring- blooming Kaempferia can be classified into two Literature Cited general subgroups: the K. rotunda subgroup Koonterm S. 2008. Kaempferia chayanii (Zingiberaceae), (with erect leaves rising above ground) and the a new species from southern Laos. Folia malaysiana 9: K. lopburiensis subgroup (with 2–3 large leaves 17–22. horizontal to or near the ground). This new Picheansoonthon C. 2009. Kaempferia sawanensis (Zingiberaceae), a new species from southern Laos. species belongs to the prior subgroup. Acta Botanica Yunnanica 31(6): 509–512. However, considering the flowers, particu- Picheansoonthon C. 2010. Kaempferia lopburiensis larly the labellum and staminodes, the spring- (Zingiberaceae), a new species from central Thailand. blooming Kaempferia can also be classified into J. Jpn. Bot. 85(3): 148–152. two subgroups: the K. rotunda subgroup (with Picheansoonthon C. 2011. Two new Kaempferia (Zingiberaceae) from Thailand. J. Jpn. Bot. 86(1): 1–8. erect staminodes and deflexed distal half of the Picheansoonthon C. and Koonterm S. 2008a. Notes on the labellum) and the K. lopburiensis subgroup genus Kaempferia L. (Zingiberaceae) in Thailand. J. (with staminodes and labellum laid on the same Thai Trad. Alt. Med. 6(1): 27–51. plane). The color-drawing labeled “Kaempferia Picheansoonthon C. and Koonterm S. 2008b. A new species of Kaempferia (Zingiberaceae) from southern ovalifolia” in Roscoe’s Monandrian Plants of the Laos. Taiwania 53(4): 406–409. Order Scitamineae (Roscoe 1828) represents the Picheansoonthon C. and Koonterm S. 2009a. Two new prior subgroup, while this new species, together Kaempferia L. (Zingiberaceae) from southern Laos. with K. grandifolia and K. lopburiensis, fits in Taiwania 54(3): 219–225. the latter subgroup. Picheansoonthon C. and Koonterm S. 2009b. A new species of Kaempferia L. (Zingiberaceae) from northeastern Character comparison between K. rotunda Thailand. Taiwania 54(1): 52–56. and K. xiengkhouangensis is shown in Table 3. Roscoe W. 1828. Monandrian Plants of the Order Other materials studied: LAO PDR. same location, 15 Scitamineae, Chiefly Drawn from Living Specimens in July 2011, C. Picheansoonthon & B. Phokham 150711-1 the Botanic Garden at Liverpool, Arranged according (BFK). to the System of Linneaus. George Smith, Liverpool. 308 植物研究雑誌 第 88 巻 第 5 号 2013 年 10 月

B. Phokhama,b，P. Wongsuwana，C. Picheansoonthona,c,d： タイ及びラオス産 Kaempferia 属（ショウガ科）の 3 新種 Kaempferia 属（ シ ョ ウ ガ 科 ） に お い て， タ イ 北 縁種との比較を表示した． 東 部 か ら K. udonensis Picheans. & Phokham と K. （a タイ・Mahasarakham 大学薬学部， picheansoonthonii Wongsuwan & Phokham の 2 新 種，及 b タイ・Sirindhorn 公衆衛生大学製薬工学部， びラオスから K. xiengkhouangensis Picheans. & Phokham c タイ・Khon Kaen 大学薬学部， を記載した．これらの 3 新種のそれぞれについて，近 d タイ・王立研究所科学アカデミー）