J. Jpn. Bot. 95(2): 111–114 (2020)

Kenji Sa,*, Hirokazu Fb and Tian-Chuan Hc : Clarifi cation of the Type of kiusiana (Vanilleae, , ) aDepartment of Biology, Graduate School of Science, Kobe University, 1-1, Rokkodai, Nada-ku, Kobe, 657-8501 JAPAN; b3-35, Tokushima-cho, Tokushima, 770-0852 JAPAN; cBotanical Garden Division, Taiwan Forestry Research Institute, No. 53, Nanhai Rd., Taipei, 10066 TAIWAN *Corresponding author: [email protected]

(Accepted on October 16, 2019)

Summary: We found that the sheet TNS111013 genera by its numerous long, thick, horizontal that has been treated as the holotype of roots that extend from a short rhizome; by a Lecanorchis kiusiana Tuyama (Orchidaceae) cup-like structure (i.e., calyculus) that is located comprises more than one gathering and even between the base of the perianth and apex of the more than one taxon. The fruiting individual ovary; and by an elongate column that possesses on the left side of the sheet, with larger habit, distinctly longer capsules and thicker stems, can a small wing on either side of the anther be identified as L. japonica Blume. Therefore, (Seidenfaden 1978, Hashimoto 1990). However, the fruiting individual are excluded from the the precise identifi cation of Lecanorchis species type material. The fl owering stalks and dissected is often hindered by their morphological flowers on the sheet also do not belong to the similarity and brief fl owering periods (Suetsugu gathering that Tuyama (1955) cited as the type, et al. 2016, 2017a, b, 2018a, b) and, in herbarium since they were collected on a different date. specimens, by the absence of important Nonetheless, since the figures and description diagnostic characters, since Lecanorchis fl owers of floral parts in the protologue are based on are easily lost or damaged during preservation the specimen of flowering and dissected (Suetsugu et al. 2016, 2017a, b, 2018a, b). flowers, flowering plants and dissected flowers could be considered as paratypes. Consequently, During the taxonomic study of Lecanorchis the center- and right-hand fruiting individuals on in Japan, we found that the sheet TNS111013 the sheet TNS111013 should be designated as the that has been treated as holotype of L. kiusiana holotype. Tuyama is problematic. When describing L. kiusiana, Tuyama (1955) cited a gathering The mycoheterotrophic genus Lecanorchis by Daisuke Shimiz u in Zissodani, Yamano, Blume (Orchidaceae) comprises ca. 30 widely Isa-gun, Kagoshima Prefecture on 14 April distributed species, with taxa reported from 1954. This information corresponded with many regions including Cambodia, China, India, the label of the sheet numbered TNS111013, Indonesia, Japan, Korea, Laos, Malaysia, New and Tuyama himself also noted “type spec.” Guinea, the Pacific islands, the Philippines, on the label. However, the specimen actually Taiwan, Thailand, and Vietnam (Seidenfaden contains two diff erent taxa (Fig. 1). Lecanorchis 1978, Lin 1987, Hashimoto 1989, 1990, Pearce kiusiana is the smallest Lecanorchis species and Cribb 1999, Szlachetko and Mytnik 2000, in Japan (Tuyama 1955, Fukunaga et al. 2014, Pridgeon et al. 2003, Averyanov 2005, 2011, Suetsugu et al. 2017b), and the left-hand 2013, Suddee and Pedersen 2011, Suetsugu and fruiting individual on the sheet with larger habit, Fukunaga 2016, Suetsugu et al. 2018a, c). The distinctly longer capsules and thicker stems does genus can be distinguished from other orchid not fall within the size variation of L. kiusiana.

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Edinburgh J. Bot. 56: 273–284. 2016. Epitypification, emendation and synonymy Pridgeon A. M., Cribb P. J., Chase M. W. and Rasmussen F. of Lecanorchis taiwaniana (Vanilleae, Vanilloideae, N. 2003. Genera Orchidacearum 3. Orchidoideae (part Orchidaceae). Phytotaxa 265: 157–163. 2), Vanilloideae. Oxford University Press, Oxford. Suetsugu K., Souladeth P., Tagane S. and Yahara T. Seidenfaden G. 1978. Orchid genera in Thailand VI. 2018c. First record of the mycoheterotrophic orchid Neottioideae Lindl. Dansk Bot. Arkiv 32: 1–195. Lecanorchis taiwaniana from Nam Ha National Suddee S. and Pedersen H. Æ. 2011. A new species of Protected Area, Northern Laos. Acta Phytotax. Geobot. Lecanorchis (Orchidaceae) from Thailand. Taiwania 69: 139–141. 56: 37–41. Suetsugu K., Tagane S., Toyama H., Chhang P. and Yahara Suetsugu K. and Fukunaga H. 2016. Lecanorchis T. 2018a. Lecanorchis vietnamica (Orchidaceae), a tabugawaensis (Orchidaceae, Vanilloideae), a new newly recorded mycoheterotrophic genus and species mycoheterotrophic from Yakushima Island, from Cambodia. Cambodian Journal of Natural History Japan. Phytokeys 73: 125–135. 2018: 6–8. Suetsugu K., Hsu T. C. and Fukunaga H. 2017a. The Szlachetko D. L. and Mytnik J. 2000. Lecanorchis identity of Lecanorchis fl avicans and L. fl avicans var. seidenfadeni (Orchidaceae, Vanilloideae), a new orchid acutiloba (Vanilleae, Vanilloideae, Orchidaceae). species from Malaya. Ann. Bot. Fenn. 37: 227–230. Phytotaxa 306: 217–222. Turland N. J., Wiersema J. H., Barrie F. R., Greuter W., Suetsugu K., Hsu T. C. and Fukunaga H. 2017b. Hawksworth D. L., Herendeen P. S., Knapp S., Kusber Lectotypification of Lecanorchis ohwii (Vanilleae, W. H., Li D. Z., Marhold K., May T. W., McNeill J., Vanilloideae, Orchidaceae) with discussions of its Monro A. M., Prado J., Price M. J. and Smith G. F. taxonomic identity. Phytotaxa 309: 259–264. 2018. International Code of Nomenclature for algae, Suetsugu K., Hsu T. and Fukunaga H. 2018b. fungi, and plants (Shenzhen Code) adopted by the Neotypifi cation of Lecanorchis purpurea (Orchidaceae, Nineteenth International Botanical Congress Shenzhen, Vanilloideae) with the discussion on the taxonomic China, July 2017. [Regnum Vegetabile 159] Koeltz identities of L. trachycaula, L. malaccensis, and L. Botanical Books, Glashütten. betung-kerihunensis. Phytotaxa 360: 145–152. Tuyama T. 1955. A new saprophytic orchid, Lecanorchis Suetsugu K., Hsu T. C., Fukunaga H. and Sawa S. kiusiana. J. Jap. Bot. 30: 181–187.

末次健司a，福永裕一b，T.-C. Hsuc：ウスキムヨウラン （ラン科）のホロタイプについて ウスキムヨウラ ンのホロタイプとして，国立科学 る．TNS111013 には，この 日付情報が書かれたラベル 博物館の維管束植物標本室 (TNS) に収められている がついていない．しかし Tuyama (1955) の protologue に TNS111013 の検討を行った．以下にその実態を説明す 採取日の情報，ならびに，花形質に関する記載はこれら る．上部に貼られた果実標本は，ラベルに書かれた採 の標本に基づくことが述べられている．よって，これら 集日，かつウスキムヨウランの記載論文である Tuyama も原資料とみなすことができる．その一方で，タイプと (1955) 中で，タイプ標本の採取日と書かれた 1954 年 4 して引用された日付に標本にされておらず，ホロタイプ 月 14 日に標本にされたものであるが，そのうちの左端 とはみなせない．このためウスキムヨウランのホロタイ の大型の標本は，ウスキムヨウランではなく，ムヨウ プは，上部に貼られた果実の標本のうち，左端のものを ランである．このムヨウランの標本はすでに津山自身 除いたものが該当する． a により TNS111013 に付けられたアノテーションによ （ 神戸大学理学研究科， b り，混合物として除かれており，原資料ではない．ま 徳島県徳島市， c た，開花個体と花の解剖標本は，4 月 14 日に採集され 台湾・林業試驗所） た後，開花を待って 5 月 18 日に標本にされたものであ