J. Jpn. Bot. 93(6): 384–388 (2018) New Combinations in the Desmodium Group of Leguminosae Tribe Desmodieae Hiroyoshi Oa,* and Kazuaki Ob aHerbarium TUS, Botanical Garden, Tohoku University, Sendai, 980-0862 JAPAN; bSchool of Pharmacy, Iwate Medical University, Yahaba, Iwate, 028-3694 JAPAN *Corresponding author: [email protected] (Accepted on July 7, 2018) New combinations in the Desmodium group of Leguminosae tribe Desmodieae are proposed for the following four species based on morphological evidence: Grona retrofl exa (L.) H. Ohashi & K. Ohashi, Pleurolobus flexuosus (Wall. ex Benth.) H. Ohashi & K. Ohashi, P. pryonii (DC.) H. Ohashi & K. Ohashi and Tateishia bolsteri (Merr. & Rolfe) H. Ohashi & K. Ohashi. The lectotype of Hedysarum capitatum Burm. f. is designated. Key words: Desmodium, Grona, Pleurolobus, Tateishia. The Desmodium group of the tribe Heteroloma (Ohashi 1973), but was represented Desmodieae of Leguminosae has recently by a distinct clade and separated from the been reorganized based on morphological Desmodium clade on our phylogenetic trees (cf. and palynological evidence with results of figs. 1–3 in Ohashi et al. 2018b). Desmodium molecular phylogenetic analyses and comprises gangeticum is, therefore, recognized as 28 genera at present (Ohashi et al. 2018a, b). representing an independent monotypic genus Grona, Pleurolobus and Tateishia of the group Pleurolobus. The genus Tateishia was created to are treated in this paper. The genus Grona was accommodate Desmodium concinnum DC. The resurrected from Desmodium for inclusion of species was placed in the section Heteroloma the members of Desmodium sections Nicolsonia (Ohashi 1973), but forms an independent clade and Sagotia (Ohashi and Ohashi 2018). Nine distinct from the typical Desmodium clade as species representing the two sections were well as that of Pleurolobus as indicated in our phylogenetically analyzed, and, consequently, phylogenetic analyses (Ohashi et al. 2018b). the species constituted one clade that is entirely Tateishia includes two species at present. different clade from the Desmodium clade including D. scorpiurus (Sw.) Desv., the type 1) Correct name of Grona capitata of the genus (Ohashi et al. 2018b). Grona is Grona capitata (Burm. f.) H. Ohashi & K. now including 42 species (Ohashi and Ohashi Ohashi was proposed based on Hedysarum 2018, Ohashi et al. 2018b). Pleurolobus was capitatum Burm. f. in Flora Indica (Burman rejected for conservation of Desmodium, but 1768) (Ohashi and Ohashi 2018), but the was resurrected by Ohashi et al. (2018a) to basionym is regarded as identical with H. accommodate Desmodium gangeticum (L.) retroflexum L. in Systema Naturae, ed. 12, DC. This species was placed in the section 2 (Burman 1767) and Mantissa Plantarum —384— 388 植物研究雑誌 第 93 巻 第 6 号 2018 年 12 月 Distribution: Sri Lanka and southern India. Ohashi H. 1998. The taxonomic position of Desmodium bolsteri (Leguminosae), a species endemic to the Tateishia bolsteri (Merr. & Rolfe) H. Ohashi Philippines. J. Jpn. Bot. 73: 259–263. Ohashi H. 2004. Taxonomy and distribution of Desmodium & K. Ohashi, comb. nov. and related genera (Leguminosae) in Malesia (I). J. Jpn. Desmodium bolsteri Merr. & Rolfe in Bot. 79: 101–139. Philipp. J. Sci., C 3: 102 (1908) [Lectotype Ohashi H. and Ohashi K. 2018. Grona, a genus separated (Ohashi 1998): PHILIPPINES. Luzon. Cagayan from Desmodium (Leguminosae tribe Desmodieae). J. Jpn. Bot. 93(2): 104–120. Prov., Pena Blanca. F. H. Bolster 181. K]; Ohashi K., Ohashi H., Nemoto N., Abe C., Kotani H., Nata Merr., Enum. Philipp. Flow. Pl. 2: 284 (1923); K., Ohtake H. and Yamamoto K. 2018a. Phylogenetic Meeuwen in Reinwardtia 6: 265 (1962); H. analyses for classifi cation of the Desmodium group of Ohashi, Ginkgoana 1: 250 (1973); H. Ohashi in Leguminosae tribe Desmodieae 2. Two new genera J. Jpn. Bot. 73: 260, fi gs. 1–2 (1998) & 79: 120 separated from Desmodium and two new combinations in Grona and Sohmaea. J. Jpn. Bot. 93(5): 293–306. (2004). Ohashi K., Ohashi H., Nemoto N., Ikeda T., Izumi H., Distribution: Philippines (Luzon Island). Kobayashi H., Muragaki H., Nata K., Sato N. and Suzuki M. 2018b. Phylogenetic analyses for a new References classifi cation of the Desmodium group of Leguminosae Burman N. L. 1768. Flora Indica: cui accedit Series tribe Desmodieae. J. Jpn. Bot. 93(3): 165–189. Zoophytorum Indicorum, nec non Prodromus Florae Pedley L. 1996. Tribe Desmodieae. In: Dassanayake M. D. Capensis. Apud Cornelium Haek, Amstelaedami. and Clayton W. D. (eds.), A Revised Handbook to the Huang P. H. and Ohashi H. 2010. Desmodium. In: Wu Z. Flora of Ceylon. Fabaceae (Leguminosae) subfamily Y., Raven P. H. and Hong D. Y. (eds.), Flora of China. Faboideae (Papilionoideae) (continued). 10: 149–198 Fabaceae. 10: 268–278. Science Press, Beijing and (including 11. Pseudarthria by V. E. Rudd). A. A. Missouri Botanical Garden Press, St. Louis. Balkema, Rotterdam. Meeuwen M. S. Knaap-van 1962. Preliminary revisions of Rugayah 1998. Desmodium capitatum dan Desmodium some genera of Malaysian Papilionaceae V—A census styracifolium. Floribunda 1(8): 29–32. of the genus Desmodium. Reinwardtia 6: 239–276. Sanjappa M. 1992. Legumes of India. Bishen Singh Merrill E. D. 1910. An enumeration of Philippine Mahendra Pal Singh, Dehra Dun. Leguminosae, with keys to the genera and species. Schindler A. K. 1926. Die Desmodiinen in der botanischen Philipp. J. Sci., C 5: 1–136. Literatur bis Linné. Repert. Spec. Nov. Regni Veg. 23: Merrill E. D. 1923. An Enumeration of Philippine 71–127. Flowering Plants. 2. Bureau of Printing, Manila. Turland N. J. and Jarvis C. E. (eds.) 1997. Typification Ohashi H. 1973. The Asiatic Species of Desmodium and Its of Linnaean specific and varietal names in the Allied Genera (Leguminosae). Ginkgoana 1. Academia Leguminosae (Fabaceae). Taxon 46: 457–485. Scientifi c Book, Inc., Tokyo. 大橋広好a，大橋一晶b：マメ科アコウマイハギ連アコウ マイハギ群の新学名 マメ科 Desmodieae の和名は旧称ヌスビトハギ連であ H. Ohashi & K. Ohashi と P. pryonii (DC.) H. Ohashi & K. ったが，連のタイプ属 Desmodium のタイプである D. Ohashi および Tateishia の T. bolsteri (Merr. & Rolfe) H. scorpiurus (Sw.) Desv. の和名アコウマイハギに基づいて Ohashi & K. Ohashi の新学名を発表した．Hedysarum アコウマイハギ連と改称した．アコウマイハギ連はアコ retrofl exum L. は本誌93: 110 で発表したG. capitata ウマイハギ群，ウチワツナギ群，ハギ群の 3 群よりな (Burm. f.) H. Ohashi & K. Ohashi の基礎異名の先行名で り，それぞれ単系統群を構成する．アコウマイハギ連 あることが明らになり，これを基礎異名として Grona は最近の分子系統学的解析に基づいて 28 属よりなると retrofl exa なる新組み合わせを作った．その他の 3 新組 されている (Ohashi et al. 2018a, b)．本論文ではシバハギ み合わせは形態的根拠に基づいている． 属 Grona の G. retrofl exa (L.) H. Ohashi & K. Ohashi, タ （a東北大学植物園津田記念館， マツナギ属 Pleurolobus の P. fl exuosus (Wall. ex Benth.) b岩手医科大学薬学部）.