J. Jpn. Bot. 95(4): 235–237 (2020)

Sarayut Ra, Charun Ma, Piyaporn Sb and Surapon Sc,*: Cornukaempferia larsenii (Zingiberaceae)—A New Record for Lao PDR aQueen Sirikit Botanic Garden, The Botanical Garden Organization, Chiang Mai, 50180 THAILAND; bPlant and Invertebrate Taxonomy and Its Applications Unit Group, Department of Biology, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150 THAILAND; cPlant and Invertebrate Taxonomy and Its Applications Unit Group, Walai Rukhavej Botanical Research Institute, Mahasarakham University, Maha Sarakham, 44150 THAILAND; *Corresponding author: [email protected]

(Accepted on Feburuary 12, 2020)

Summary: Cornukaempferia larsenii P. District and deposited in Queen Sirikit Botanic Saensouk (Zingiberaceae) was previously Garden Herbarium (QBG). Later, consulting known as endemic to Thailand. A specimen from relevant literature (Saensouk et al. 2007, Xayaburi Province is reported from Lao PDR. Yupparach et al. 2019), it was identified as Color photographs of the species are provided. C. larsenii. Cornukaempferia larsenii is easily The genus Cornukaempferia Mood & K. distinguishable by having green lower leaf Larsen is belonging to family Zingiberaceae, surface, upper leaf surface without or with very order Zingiberales. It was established by Mood few silvery markings, inflorescences with 3–5 and Larsen (1997) based on C. aurantiflora flowers with bracteoles and glabrous corolla Mood & K. Larsen from Phetchabun Province tube. For Lao PDR, Newman et al. (2007a, b) in northeastern Thailand. This type species for published a preliminary checklist of 15 genera Cornukaempferia is undoubtedly a rare species of Zingiberaceae such as Alpinia L., Amomum and is endemic to northern and northeastern Roxb., Caulokaempferia K. Larsen, Laosanthus Thailand. Mood and Larsen (1999) described K. Larsen & Jenjitt and Zingiber Mill. Later, Lee the second species, C. longipetiolata Mood & K. (2016) published “A Checklist of Plants in Lao Larsen, based on the specimen from Phetchabun PDR” including 14 genera of Zingiberaceae. Province, Thailand. Later, Saensouk et al. (2007) However, Cornukaempferia has never been published C. larsenii P. Saensouk from Loei reported before from Lao PDR. Therefore, Province, Thailand. Recently, Yupparach et al. C. larsenii is not only a new specific record, (2019) published two new species, C. chayanii but a new generic record for the Flora of Lao Yupparach & Wongsuwan and C. kamolwaniae PDR. This article provides distribution and color Picheans., Yupparach & Wongsuwan from photographs based on the Lao PDR material for northern Thailand. Therefore, this genus their easier identifi cation. comprises fi ve species namely, C. aurantifl ora, C. chayanii, C. kamolwaniae, C. larsenii and Cornukaempferia Mood & K. Larsen in C. longipetiolata. Nat. Hist. Bull. Siam Soc. 45: 217 (1997). During field exploration in Xayaburi The name of Cornukaempferia is a Province, northern Lao PDR in May–June combination of the Latin word for horn. Cornu 2019, Cornukaempferia plant was discovered refer to “horn-shaped” of the anther crest, that and collected in Phu Pha Daeng, Botane shows a striking resemblance with the anther

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Vongxana Mouaxayvaneng and Ms. Phizar Cornukaempferia in Thailand with description of a Xaiyalath, staff from Pha Tad Ke Botanic second species. New Plantsman 6: 196–205. Newman M., Thomas P., Lanorsavanh S., Ketphanh S., Garden for field assistance. The authors would Svengsuksa B. and Lamxay V. 2007a. New records of like to thank Pha Tad Ke Botanic Garden angiosperms and pteridophytes in the Flora of Laos. for requesting permission in collection and Edinburgh J. Bot. 64(2): 225–251. exportation of sample from Lao government. Newman M., Ketphanh S., Svengsuksa B., Thomas P., Sengdala K., Lamxay V. and Armstong K. 2007b. A This work was supported by The Botanical Checklist of the Vascular Plants of Lao PDR. Royal Garden Organization, Thailand. Botanic Garden, Edinburgh. Saensouk P., Theerakulpisut P. and Chantaranothai P. 2007. References Cornukaempferia larsenii sp. nov. (Zingiberaceae): a Lee Y. M. 2016. A Checklist of Plants in Lao PDR. Korea new species from Thailand. Nat. Hist. J. Chulalongkorn National Arboretum of the Korea Forest Service, Univ. 7(2): 115–119. Gyeonggi-do. Yupparach P., Wongsuwan P., Phokham B., Sangnark S. Mood J. and Larsen K. 1997. Cornukaempferia, a new and Picheansoonthon C. 2019. Two new species of genus of Zingiberaceae from Thailand. Nat. Hist. Bull. Cornukaempferia (Zingiberaceae) from Thailand. J. Siam Soc. 45: 217–221. Jpn. Bot. 94(2): 82–89. Mood J. and Larsen K. 1999. New to cultivation: the genus

S. Rakarchaa，C. Maknoia，P. Saensoukb，S. Saensoukc： ラオス新産の Cornukaempferia larsenii（ショウガ科） ショウガ科のCornukaempferia larsenii P. Saensouk 欠く（Kaempferia には 2 裂する小苞がある）点で異なる． はタイの固有種として知られていたが，ラオスの （aタイ・Queen Sirikit Botanic Garden, b Xayaburi Province から新たに発見された．これはこ タイ・Mahasarakham University, の属としてもラオスで初めての報告となる．なお， Faculty of Science, Department of Biology, c Cornukaempferia は 5 種からなり，近縁な Kaempferia タイ・Mahasarakham University, からは，葯隙 anther crest が角形で（Kaempferia では平 Walai Rukhavej Botanical Research Institute） らでしばしば 2 歯がある），C. larsenii を除いて小苞を