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A New Species of Caulokaempferia (Zingiberaceae) from Manipur, India

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A New Species of Caulokaempferia (Zingiberaceae) from Manipur, India J. Jpn. Bot. 92(2): 82–86 (2017) A New Species of Caulokaempferia (Zingiberaceae) from Manipur, India Biseshwori THONGAM* and Bipin KONSAM Plant Systematics and Conservation Laboratory, Institute of Bioresources and Sustainable Development, Takyelpat, Imphal, Manipur, 795001 INDIA *Corresponding author: [email protected] (Accepted on December 21, 2016) A new species, Caulokaempferia dinabandhuensis Biseshwori & Bipin (Zingiberaceae) is described. This is the first report of the genus from Manipur, India. Caulokaempferia dinabandhuensis is characterized by tubular calyx widened in the middle and tapering towards the apex and suborbicular, deeply split labellum with elongated, obtuse tips. Full description and a photographic plate of this new species and comparative analysis among three Caulokaempferia are presented. Key words: Caulokaempferia dinabandhuensis, India, Manipur, new species, Shirui Hill. The genus Caulokaempferia K. Larsen The combination of floral features is unique; was established by Larsen (1964). It belongs calyx tubular, apex often 2–3-toothed; corolla to the pantropical monocotyledonous family tube long, narrow, widened at mouth; lobes 3, Zingiberaceae containing about 53 genera central one slightly longer and wider than lateral and over 1200 species, mostly occurring from ones; lateral staminodes petaloid, large; labellum India to New Guinea (Kress et al. 2002). orbicular or broadly ovate, large, concave, Caulokaempferia comprises about 30 species apex entire or 2-lobed; filament very short or (WCSP 2013) or about 25 species (Intharapichai absent, borne on the adaxial side of the corolla 2015), distributed from the Himalayas through tube; anther basifixed; connective forming a South China, Vietnam, Laos and Thailand. conspicuously reflexed crest; ovary -3 loculed. Thailand is the centre of diversity (Roy and In India, so far three species are reported viz., Barbhuiya 2013), having the highest number Caulokaempferia linearis (Wall.) K. Larsen, C. of species, 21 species are reported so far. Five secunda (Wall.) K. Larsen and C. sikkimensis species in Laos, three species in South China (King ex Baker) K. Larsen. In this paper, a new and two species in Vietnam (Chaiyoot 2007). species is described and comparative studies are Recently two new species, Caulokaempferia presented with three species recorded in India kayinensis Picheans. & Sangnark and C. (Table 1). This is the first report of the genus monensis Picheans. & Sangnark, have been from Manipur, India. described from south Myanmar (Sangnark et al. 2016) Material and Methods These are small perennial herbs with terminal During a fieldtrip to Shirui Hill, in Ukhrul inflorescences. Pseudostems are erect and leafy. district, Manipur, India which is about 90 km —82— 86 植物研究雑誌 第 92 巻 第 2 号 2017 年 4 月 Note: This new species can be easily Intharapichai K. 2015. The medicinal plants genus characterized by its terrestrial habit, short ligules, Caulokaempferia K. Larsen (Zingiberaceae) in India, China and Vietnam. Master thesis. The Graduate pubescent leaves, calyx broadening in the middle School, Mahasarakham Univeristy, Maha Sarakham. and tapering towards apex, and labellum deeply Kress W. J., Price L. M. and Williams K. J. 2002. splitting with elongated tips. Caulokaempferia The phylogeny and new classification of Gingers pubescens was the only species known to have (Zingiberaceae): Evidence from molecular data. Amer. hairs on both sides of leaf-surface as reported J. Bot. 89: 1682–1696. Larsen K. 1964. Studies in Zingiberaceae IV. earlier (Pokham et al. 2015), however, the new Caulokaempferia, a new genus. Bot. Tidssk. 60: 165– species shares the same character with that 179. species. Phokham B., Intharapichai K., Wongsuwan P. and Picheansoonthon C. 2015. Caulokaempferia pubescens (Zingiberaceae)—a new species from northern The authors thank Department of Thailand. Taiwania 60: 77–80. Biotechnology, Government of India for Roy D. K. and Barbhuiya H. A. 2013. Taxonomy of supporting the research work. Caulokaempferia (Zingiberaceae) in India. NeBIO 4: 1–6. Sangnark S., Prasarn S., Phokham B., Wongsuwan P. and References Picheansoonthon C. 2016. The genus Caulokaempferia Chaiyoot A. 2007. Morphology and molecular study of the (Zingiberaceae) in Myanmar Part 1: Two new species genus Caulokaempferia in Thailand and Laos. Master from South Myanmar. J. Jpn. Bot. 91: 133–140. thesis. The Graduate School, Khon Kaen University, WCSP 2013. World Checklist of Selected Plant Families. Khon Kaen. Facilitaed by Royal Botanic Gardens, Kew. Published Dilip Kr. Roy and Barbhuiya H. A. 2013. Taxonomy of on the Internet: http://apps.kew.org/wcsp/ Retrieved on Caulokaempferia (Zingiberaceae) in India. NeBIO 4: 26.09.2013. 1–6. B. Thongam，B. Konsam： イ ン ド・ マ ニ プ ー ル 州 産 Caulokaempferia 属（ショウガ科）の 1 新種 ショウガ科の 1 新種 Caulokaempferia dinabandhuensis をもつことで特徴付けられる．ここでは本新種を詳しく Biseshwori & Bipin を 記 載 し た． こ れ は イ ン ド・ 記載するとともにその図版を示し，近縁な 3 種との比 マニプール州からは本属の初めての報告となる． 較を行った． Caulokaempferia dinabandhuensis は，中部で太く，先端 （インド・Institute of Bioresources and Sustainable Development, に向かって次第に細くなる，円筒状の萼片と，やや円形 Plant Systematics and Conservation Laboratory） で深く切れ込み，伸長して先端が鈍形の裂片のある唇弁.
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