J. Jpn. Bot. 84: 197–223 (2009)

A Revision of Lespedeza Subgenus Macrolespedeza (Leguminosae) in China

a b c Hiroyoshi Ohashi , Tomoyuki Nemoto and Kazuaki Ohashi

aBotanical Gardens, Tohoku University, Sendai, 980-0862 JAPAN; E-mail: [email protected] bDepartment of Basic Sciences, Faculty of Science and Engineering, Ishinomaki Senshu University, Ishinomaki, Miyagi, 986-8580 JAPAN; cSchool of Pharmacy, Iwate Medical University, Yahaba, Iwate, 028-3694 JAPAN (Received on March 5, 2009)

Chinese members of subgenus Macrolespedeza in the genus Lespedeza are revised. Eight species are recognized in China. A key to the species, bibliography of the species, and synonyms are provided. Lespedeza dunnii Schindl. and L. fordii Schindl. are newly accommodated in the section Heteroloespedeza. Lespedeza thunbergii is divided into newly circumscribed subsp. thunbergii, subsp. formosa (Vogel) H. Ohashi and subsp. elliptica (Benth. ex Maxim.) H. Ohashi (comb. nov.). Lespedeza formosa (Vog.) Koehne, L. patens Nakai, L. pubescens Hayata, L. viatorum Champ. ex Benth., and L. wilfordii Ricker in Flora Reipublicae Popularis Sinicae (FRPS) vol. 41 (1995) are regarded as synonyms with L. thunbergii (DC.) Nakai. Of the unknown species in FRPS L. hupehensis Ricker and L. merrillii Ricker are considered as synonyms of L. davidii and L. veitchii Ricker as a synonym of L. bicolor.

Key words: China, classification, Desmodieae, Leguminosae, Lespedeza, Macrolespedeza, taxonomy.

This paper is intended as a complement (Ohashi et al. 2009a). to the account of subgenus Macrolespedeza The present circumscription of the genus of the genus Lespedeza for the Flora of Lespedeza was proposed by Schindler (1913) China treatment (Flora of China vol. 10. who modified the subgenus Lespedeza in the Fabaceae. Editors: Z. Y. Wu, P. H. Raven sense of Maximowicz (1873). Schindler’s and D. Y. Hong in preparation). We provide generic concept has been followed in the here an introductory note on the subgenus in recent general systems of the tribe Desmodieae China, a key to the species, bibliography of in Hutchinson (1964), Ohashi et al. (1981) and all the species and synonyms, and taxonomic Ohashi (2005). notes especially on the species described by Maximowicz (1873) created section Ricker (1942, 1946) and L. thunbergii (DC.) Macrolespedeza under subgenus Lespedeza. Nakai. Most of these items are not included Schindler (1913) adopted the section under in the Flora of China treatment. This is also a genus Lespedeza. Nakai (1939) divided continuous paper from our previous revision section Macrolespedeza into two sections of Chinese Lespedeza subgenus Lespedeza Macrolespedeza s.s. and Heterolespedeza.

—197— 198 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月

Ohashi (1982, 2001, 2005) adopted the generic paper (Table 1). concept of Schindler (1913), but raised the Meanwhile, Ricker (1942, 1946) described section to subgenus: subgen. Macrolespedeza 10 new species of Macrolespedeza of the (Maxim.) H. Ohashi, and accommodated genus from China: Lespedeza albiflora section Heterolespedeza Nakai in the subgenus. Ricker from Kwangtung (Guangdong); L. Li and Chen (1995) adopted sect. anhweiensis Ricker from Anhwei (Anhui); L. Macrolespedeza Maxim. for the Chinese bracteolata Ricker from the USA originated in Lespedeza in Flora Reipublicae Popularis China or Korea; L. chekiangensis Ricker from Sinicae (FRPS), but Ohashi’s system is Chekiang (Zhejiang); L. hupehensis Ricker followed in this paper. from Hupeh (Hubei); L. merrillii Ricker from Chekiang; L. metcalfii Ricker from Anhwei; Subgen. Macrolespedeza of China L. paradoxa Ricker from Anhwei; L. veichii Schindler (1913) recognized eight species of Ricker from Hupeh; and L. wilfordii Ricker Macrolespedeza in his revision, of which seven from Hongkong. These species were described were recorded from China. Akiyama (1988) based usually on a single herbarium specimen. recognized nine species of Macrolespedeza of His circumscription of the species is often which six were found in China. Li and Chen difficult to reconfirm, because his new species (1995) adopted 12 species in FRPS volume were distinguished from the known species 41 that is the most recent comprehensive often on the basis of such variable characters treatment of Macrolespedeza in China. A list as degree of hairs on branches or leaves, shape of the species of Macrolespedeza in these or size of leaflets, or size of calyx or flowers. three works is compared with our result in this Of the 10 species of Macrolespedeza

Table 1. Chinese species of Lespedeza-Macrolespedeza recognized by Schindler (1913), Akiyama (1988), Li and Chen (1995) and the present study

Schindler (1913) Akiyama (1988) Li and Chen (1995) Present study

L. bicolor Turcz. L. bicolor L. bicolor L. bicolor L. buergeri Miq. L. buergeri L. buergeri L. buergeri L. cyrtobotrya Miq. L. cyrtobotrya L. cyrtobotrya L. cyrtobotrya L. davidii Franch. L. davidii L. davidii L. davidii L. dunnii Schindl. L. dunnii L. dunnii L. fordii Schindl. L. fordii L. fordii L. formosa (Vogel) L. formosa L. formosa L. thunbergii (DC.) Nakai Koehne L. friebeana Schindl. L. maximowiczii L. maximowiczii L. maximowiczii C. K. Schneid. L. patens auct. non Nakai (= L. thunbergii) L. pubescens Hayata (= L. thunbergii) L. viatorum (= L. thunbergii) Champ. ex Benth. L. wilfordii Ricker (= L. thunbergii) August 2009 Journal of Japanese Botany Vol. 84 No.4 199 described by Ricker from China, Akiyama Subgen. Macrolespedeza (Maxim.) H. (1988) listed seven species as imperfectly Ohashi in J. Jap. Bot. 57: 29 (1982); H. Ohashi known in her revision, and did not treat in K. Iwats. & al., Fl. Jap. IIb: 260 (2001). L. hupehensis, L. veichii and L. wilfordii. L. sect. Macrolespedeza Maxim. in Trudy Akiyama and Ohba (1988) regarded L. Imp. S.-Peterburgsk. Bot. Sada 2: 346 (1873) wilfordii as a synonym of L. formosa. Li as “Macro-lespedeza” sub subgen. Lespedeza; and Chen (1995) accepted L. wilfordii as Schindl. in Bot. Jahrb. Syst. 49: 574 (1913); correct species and regarded four species: L. S. Akiyama in Univ. Mus. Univ. Tokyo Bull. anhweiensis, L. chekiangensis, L. metcalfii (33): 91 (1988); Li & Chen in FRPS 41: 131 and L. paradoxa as synonyms of the known (1995). species in China. They treated four (L. L. sect. Archilespedeza Taub. in Engl. & albiflora, L. hupehensis, L. merrillii and L. Prantl, Nat. Pflanzenfam. 3, 3: 332 (1891), p. veitchii) as unknown and did not treat L. p. incl. A.[unranked] Macrolespedeza Maxim. bracteolata. ex Taub., cet. excl. Most of the type specimens of Ricker’s species were missing in A, GH and NY when Key to the species of China one of the author, H. Ohashi, had worked on 1a. Flowers chasmogamous and cleistogamous Chinese Lespedeza for the Flora of China (except L. forrestii), usually less than project in the Harvard University Herbaria 10 mm long (except L. gerardiana), in 2006 and 2007. He examined types of L. in more or less elongated racemes of anhweiensis, L. bracteolata and L. metcalfii chasmogamous flowers with basal and also examined fragmental specimens fascicles of cleistogamous flowers, or of a few flowers, fruits or leaflets of L. composed only of fasciculate racemes of chekiangensis, L. hupehensis, L. veitchii and cleistogamous flowers; standard white L. wilfordii kept in US. These fragmental to yellowish or reddish purple; loments specimens were considered as isotypes of sessile or subsessile; herbs to subshrubs the four species separated by Ricker from [subgenus Lespedeza] the holotype in his studies. Each of them is 1b. Flowers all chasmogamous, usually more packed in a small packet with Ricker’s memo than 10 mm long, in simple or compound and mounted with photographs of the type racemes; standard usually rose-purple specimen. Lespedeza merrillii was examined or reddish purple, rarely yellowish or only as a photograph of the type in NY. white; loments shortly stipitate; shrubs to Lespedeza albiflora and L. paradoxa were not subshrubs [subgenus Macrolespedeza] ... examined. Lespedeza bracteolata was referred ...... 2 to L. buergeri Miq. (Ohashi et al. 2009b). 2a. Peduncles almost sessile, inflorescences In the present study, however, examinations not longer than subtending leaves; lateral of some of Richer’s species are insufficient and lowermost calyx-lobes acuminate to and further study is necessary for the missing caudate ...... 3 specimens at the moment. 2b. Peduncles distinct, inflorescences usually longer than subtending leaves; lateral and Taxonomic treatment lowermost calyx-lobes obtuse or acute to Lespedeza Michaux, Fl. Bor.-Amer. 2: 70 acuminate ...... 4 (1803); Li and Chen in FRPS 41: 131 (1995); 3a. Leaflets ovate, elliptic, or obovate to H. Ohashi & al. in J. Jpn. Bot. 84: 145 (2009). broadly obovate; bracteoles nearly half 200 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月

as long as calyx-tube; wings longer than Sect. 1. Heterolespedeza Nakai in J. Jap. keel; pods globose, less than 7 mm long .. Bot. 15: 531 (1939); H. Ohashi in K. Iwats. & ...... L. cyrtobotrya al., Fl. Jap. IIb: 260 (2001). Type: Lespedeza 3b. Leaflets ovate-oblong; bracteoles as long buergeri Miq. as calyx-tube; wings equal to keel; pods L. ser. Heterolespedeza (Nakai) S. oblong, 13–15 mm long ...... L. fordii Akiyama & H. Ohba in Univ. Mus. Univ. 4a. Winter buds depressed, scales distichously Tokyo Bull. (33): 142 (1988). arranged; leaflets sharply acute, rarely We observed distichously arranged obtuse; branches woody ...... 5 winter bud scales in Lespedeza dunnii and 4b. Winter buds thickened, scales spirally L. fordii (Fig. 1). These two species are, arranged; branches herbaceous or therefore, newly accommodated in sect. herbaceous-woody; leaflets rounded, Heterolespedeza. obtuse or acute ...... 7 5a. Corolla pale yellow; calyx-lobes 1. Lespedeza buergeri Miq. in Ann. acute and not spine-pointed at apex Mus. Bot. Lugduno-Batavi 3: 47 (1867) & ...... L. buergeri Prolus. Fl. Jap.: 235 (1867); Schindl. in Bot. 5b. Corolla red-purple; calyx-lobes acuminate Jahrb. Syst. 49: 580 (1913) & in Sargent, Pl. to caudate and spine-tipped at apex ...... 6 Wilson. 2: 106 (1914); Nakai, Lespedeza Jap. 6a. Leaflets acute and sharply pointed Kor. 31 (1927); Momiyama in J. Jap. Bot. 9: at apex; standard longer than keel 127 (1933); Ohwi, Fl. Jap. 678 (1953); Hatus...... L. maximowiczii in Mem. Fac. Agr. Kagoshima Univ. 6: 6 6b. Leaflets obtuse to rounded or retuse (1967), excl. subsp. praecox (Nakai) Hatus. at apex; standard shorter than keel et subsp. tricolor (Nakai) Hatus.; S. Akiyama ...... L. dunnii in Univ. Mus. Univ. Tokyo Bull. (33): 142 7a. Lateral calyx-lobes ovate or triangular (1988); Li & Chen in FRPS 41: 135, pl. 33: to narrowly ovate, apex acute to 1–7 (1995); H. Ohashi in K. Iwats. & al., Fl. slightly acuminate, rarely obtuse, less Jap. IIb: 260 (2001); P. H. Huang in P. Q. Li than 2.5 mm long; keel-claw nearly & al., Higher Pl. China 7: 184, fig. 275 (2001); as long as keel-lamina; pods orbicular H. Ohashi & al. in J. Jpn. Bot. 84: 187 (2009)...... L. bicolor [Fig. 2] 7b. Lateral calyx-lobes narrowly ovate to L. buergeri f. angustifolia Makino in Bot. narrowly triangular, apex acuminate, Mag. (Tokyo) 20: 41 (1906); Hatus. in Mem. longer than 4 mm long; keel-claw nearly Fac. Agr. Kagoshima Univ. 6: 6 (1967); S. the half as long as keel-lamina; pods Akiyama in Univ. Mus. Univ. Tokyo Bull. globose-ellipsoid to ellipsoid ...... 8 (33): 149 (1988). 8a. Stems distinctly angled, densely spreading L. bracteolata Ricker in Lingnan Sci. J. tomentose; leaflets thickly papery, 20: 201 (1942). broadly ovate-elliptic; calyx-lobes long Distr.: China and Japan. Li and Chen acuminate; pods ovoid ...... L. davidii (1995) recorded this species erroneously in 8b. Stems terete or striate, appressed sericeous; Taiwan and Korea. leaflets papery, usually ovate-elliptic; calyx-lobes acute to acuminate; pods 2. Lespedeza dunnii Schindl. in Bot. ellipsoid ...... L. thunbergii Jahrb. Syst. 49: 585 (1913); Li & Chen in FRPS 41: 142, pl. 35: 9 (1995). [Figs. 1a, 3, 4] August 2009 Journal of Japanese Botany Vol. 84 No.4 201 3 1 5 L. fordii Schindl. Hunan: 4 2 b 4 6 2 Lespedeza dunnii Schindl. Zhejiang: Suichang. 9 May 1959. Zhejiang Pl. Exped. 25958 (PE). b. 3 5 1 Jianghua. 26 Sep. 1993. Ohashi et al. (TUS). 926118 Numbers 1 to 5 indicate orders of bud scales borne on lateral shoot. Number 6 in a indicates the leaf borne on the lateral shoot. Scale bars = 1 mm. node of the first foliage a Fig. 1. Disticous bud scales. a. 202 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月

Fig. 2. Lespedeza buergeri Miq. Hunan: Nanyuehengshan Nature Preserve. 7 June 2002. Hu 256 (TUS). August 2009 Journal of Japanese Botany Vol. 84 No.4 203

Fig. 3. Lespedeza dunnii Schindl. Fujian. Dunn (collected on Mr. Dunn’s expedition to central Fukien, April to June 1905). Hongkong Herbarium, No. 2560 (A–holotype). 204 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月 a . Lespedeza metcalfii Anhui. Ricker. 24 June 1936. Fan and Li 215 (A–holotype). b. Zhejiang. Ching 1560 (A). Schindl . Lespedeza dunnii Scale bar = 10 mm. Fig. 4. August 2009 Journal of Japanese Botany Vol. 84 No.4 205

L. stottsae L. H. Bailey in Gentes Herb. 1: but is distinguishable from the latter by 32 (1920). inflorescences shorter than the subtending L. metcalfii Ricker in Amer. J. Bot. 33: leaves, larger pods (15 mm long in L. fordii 258 (1946). while ca. 8 mm long in L. dunnii), sessile Distr.: Endemic to China (Anhui, Fujian pedicels, and puberulent, not pubescent, on and Zhejiang). lower surface of leaves. Moreover, leaves of Bailey (1920) described Lespedeza the specimens of L. fordii usually become stottsae as a member of the subgenus blackish, but not in L. dunnii. Flowerings of Lespedeza and as being allied to L. formosa in L. fordii is June to August, but April to May in lacking panicled racemes. Li and Chen (1995) L. dunnii. Some specimens of L. fordii have considered that the species is close to L. more or less elongated inflorescences that are floribunda Bunge of the subgenus Lespedeza. confusingly similar to L. dunnii in this point, However, L. stottsae matches L. dunnii of but are distinguishable from each other by the subgenus Macrolespedeza in leaflets, other characters mentioned above. inflorescences, calyx and corollae, hence we Lespedeza anhweiensis Ricker was regard the species as a synonym of L. dunnii. described as having axillary, few flowered Lespedeza metcalfii Ricker was separated racemes up to 2.5 cm long, short pedicels from L. dunnii based on a single specimen nearly as long as the calyx, acuminate calyx- in having much larger leaflets (up to 5.5 cm lobes about three times the length of the tube long, 2 cm wide) and flowers (calyx 7–8 mm and oblong pods about 13 mm long. These long, corolla 10–12 mm long), apex of leaflets characters indicate the species as identical with not retuse but mucronate, fewer-flowered and L. fordii. shorter raceme 2–3 cm long (Ricker 1946). Lespedeza paradoxa Ricker collected in Both species have long acuminate calyx- Anhui in 1933 was noted by Ricker (1946) as lobes. The holotype was collected in Anhui in follow: “Not closely related to any described 1936, and differs from L. dunnii in leaflets and species but in pod character approaching slightly larger flowers. Lespedeza metcalfii that of L. thunbergii, the pods of both appears to be included in L. dunnii as Li and species resembling those of Campylotropis Chen (1995) regarded both as conspecific. rather than those of any other species of the Macrolespedeza section”. The characteristic 3. Lespedeza fordii Schindl. in Bot. features of L. paradoxa match those of L. Jahrb. Syst. 49: 586 (1913); Li & Chen in fordii. We follow Li and Chen (1995) who FRPS 41: 135 (1995); P. H. Huang in P. Q. Li regarded L. paradoxa as a synonym of L. & al., Higher Pl. China 7: 184, fig. 274 (2001). fordii. [Figs. 1b, 5, 6] L. anhweiensis Ricker in Lingnan Sci. J. 4. Lespedeza maximowiczii C. K. 20: 200 (1942). Schneid., Illust. Handb. Laubh. 2: 113 (1907); L. paradoxa Ricker in Amer. J. Bot. 33: Nakai, Lespedeza Jap. Kor. 38 (1927); 258 (1946). Kitagawa, Neo-Lineam. Fl. Manshuricae 406 Distr.: Endemic to China (Anhui, Fujian, (1979); S. Akiyama in Univ. Mus. Univ. Tokyo Guangdong, Guangxi, Hunan, Jiangsu, Bull. (33): 149 (1988); Li & Chen in FRPS 41: Jiangxi, and Zhejiang). 139 (1995); H. Ohashi in K. Iwats. & al., Fl. Lespedeza fordii resembles L. dunnii Jap. IIb: 260 (2001); P. H. Huang in P. Q. Li in general features, leaflets and calyx, & al., Higher Pl. China 7: 185, fig. 277 (2001). 206 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月

Fig. 5. Lespedeza fordii Schindl. Kwangsi (= Guangxi): Kwei-lin. 13 Aug. 1937. Fung 21189 (A). August 2009 Journal of Japanese Botany Vol. 84 No.4 207 Lespedeza fordii Schindl. a. Jiangxi: Xiu-shiu. 16 Sept. 1989. Liu 890090 (A). Anhui: b. Chiu Hwa Shan. Aug. 13 1934. Fan and Li 212 (A). Scale bars = 10 mm. Fig. 6. 208 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月

L. buergeri Miq. var. praecox Nakai in Guangxi, Hebei, Heilongjiang, Henan, Hunan, Bot. Mag. (Tokyo) 25: 55 (1911). Jiangsu, Jilin, Liaoning, Nei Mongol, Shaanxi, L. friebeana Schindl. in Repert. Spec. Shandong, Shanxi, Taiwan, and Zhejiang. Nov. Regni Veg. 9: 514 (1911) & in Sargent., However, this species is not distributed in Pl. Wilson. 2: 111 (1914). Taiwan, and, as far as we have examined Distr.: China, Japan and Korea. for specimens in the herbaria listed, Fujian, Guangdong and Guangxi are dubious for Sect. Macrolespedeza Maxim. sens. str.: its distribution. Hsu et al. (1983) listed only H. Ohashi in K. Iwats. & al., Fl. Jap. IIb: 260 Hebei, Heilongjiang, Jilin, Liaoning, and Nei (2001). Type: Lespedeza bicolor Turcz. Mongol for the area of L. bicolor. L. ser. Macrolespedeza (Maxim.) S. Lespedeza veitchii Ricker was described Akiyama in Univ. Mus. Univ. Tokyo Bull. based on a single specimen, E. H. Wilson (33): 91 (1988). 1391 in NY, collected in western Hubei, L. ser. Formosae S. Akiyama & H. Ohba and was considered as nearest to L. elliptica in Univ. Mus. Univ. Tokyo Bull. (33): 116 Benth. from India. Li and Chen (1995) noted (1988). Type: L. formosa (Vogel) Koehne. L. veitchii as similar to L. patens Nakai, probably because Ricker (1942) characterized 5. Lespedeza bicolor Turcz. in Bull. Soc. the species by the spreading pubescence of Nat. Mosc. 13: 69 (1840); Schindl. in Bot. the stems and petioles and somewhat larger Jahrb. Syst. 49: 583 (1913) & in Sargent, Pl. leaves and flowers. However,L. patens, which Wilson. 2: 112 (1916); Hatus. in Mem. Fac. they described in FRPS is considered to be Agr. Kagoshima Univ. 6: 14 (1967); Kitagawa, L. thunbergii subsp. thunbergii in this study. Neo-Lineam. Fl. Manshuricae 405 (1979); Ohashi had examined this species on four S. Akiyama in Univ. Mus. Univ. Tokyo Bull. flowers and leaflets taken by Ricker from the (33): 92 (1988); Li & Chen in FRPS 41: 143, holotype and L. veitchii is identical with L. pl. 34: 1–8 (1995); H. Ohashi in K. Iwats. & bicolor. al., Fl. Jap. IIb: 261 (2001); P. H. Huang in P. Ricker referred some specimens of Q. Li & al., Higher Pl. China 7: 187, fig. 281 Lespedeza bicolor or L. elliptica with patent (2001). [Fig. 7] hairs on stem among the collection in A to L. L. ionocalyx Nakai in J. Jap. Bot. 15: 532 patens, e.g., Smith 6683 (A). (1939); X. Y. Zhu & al., Leg. China Checklist: Li and Chen (1995) recognized a white 182 (2007) [Lectotype: Yabe s.n. 14 Aug. 1928 flowered variety, L. bicolor var. alba Bean, (TI), lectotypified by Akiyama (1988) and Zhu but this name is a synonym of L. japonica L. et al. (2007)]. H. Bailey ‘Japonica’ (Akiyama 1988). The L. veitchii Ricker in Lingnan Sci. J. 20: correct name of the white flowered form is L. 203 (1942); X. Y. Zhu & al., Leg. China bicolor f. niveoflora S. Akiyama & H. Ohba Checklist: 186 (2007). (in Univ. Mus. Univ. Tokyo Bull. no. 33, 103. L. bicolor f. pendula S. L. Tung & Z. Lu 1988). in Bull. Bot. Res. in Harbin 8(4): 102 (1988). Distr.: China, Japan, Korea and Russia (E. 6. Lespedeza cyrtobotrya Miq. in Ann. Siberia and Far East). Mus. Bot. Lugduno-Batavi 3: 48 (1867) & Li and Chen (1995) listed the following Prolus. Fl. Jap.: 236 (1867); Schindl. in Bot. 18 provinces as the area of Lespedeza bicolor Jahrb. Syst. 49: 582 (1913) & in Sargent, Pl. in China: Anhui, Fujian, Gansu, Guangdong, Wilson. 2: 112 (1916); Kitag., Neo-Lineam. August 2009 Journal of Japanese Botany Vol. 84 No.4 209

Fig. 7. Lespedeza bicolor Turcz. a. Beijing: Xiao Long Men. 16 July 1996. Boufford & al. 27099 (TUS). b. Inflorescence, enlarged. Scale bar = 5 mm. 210 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月

Fl. Manshuricae 405 (1979); S. Akiyama 20: 202 (1942); X. Y. Zhu & al., Leg. China in Univ. Mus. Univ. Tokyo Bull. (33): 104 Checklist: 183 (2007). (1988); Li & Chen in FRPS 41: 133, pl. 32: Dist.: Endemic to China (Anhui, Fujian, 1–7 (1995); H. Ohashi in K. Iwats. & al., Fl. Guangdong, Guangxi, Guizhou, Henan, Jap. IIb: 260 (2001); P. H. Huang in P. Q. Li Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, and & al., Higher Pl. China 7: 183, fig. 273 (2001); Zhejiang). Recently, this species has become H. Ohashi & al. in J. Jpn. Bot 84: 187 (2009). widely naturalized in Japan by greening for [Fig. 8] protection of newly constructed highway or L. kawachiana Nakai, Lespedeza Jap. developed areas (Ohashi et al. 2003, Iokawa Kor.: 47 (1927). and Ohashi 2007). L. anthobotrya Ricker in Amer. J. Bot. 33: Lespedeza hupehensis Ricker was 257 (1946). described by Ricker (1942) based on a single L. cyrtobotrya f. kawachiana (Nakai) specimen as follows: a small erect shrub up to Hatus. in Mem. Fac. Agr. Kagoshima Univ. 1 m tall characterized in having short axillary 6: 10 (1967); S. Akiyama in Univ. Mus. Univ. racemes up to 5 cm long, calyx with acuminate Tokyo Bull. (33): 112 (1988). teeth somewhat longer than the tube and bifid Distr.: N. China, Japan, Korea and Russia dorsal tooth, purple corolla with much shorter (Primorye in Far East). wings than the banner and keel, and broadly This species is recorded from Gansu, elliptic pods about 5 mm long. He considered Guangdong, Hebei, Heilongjiang, Henan, it similar to L. kawachiana Nakai. Lespedeza Jiangxi, Jilin, Liaoning, Shaanxi, Shanxi, kawachiana is, however, merely a form of and Zhejiang in China (Li and Chen in L. cyrtobotrya Miq. with spreading hairs on FRPS 1995). However, distribution in the branches, although it was recognized as southern Provinces among these areas needs distinct at the rank of variety (Ohwi 1951) or reconfirmation on the identification of voucher form (Hatusima 1967). Lespedeza cyrtobotrya specimens, because L. bicolor, L. floribunda has inflorescences shorter than the subtending Bunge or L. thunbergii are sometimes leave and wings longer than or equal to the erroneously referred to as L. cyrtobotrya in keel. On the other hand, judging from the type China. of L. hupehensis (photos in NY and US) fully See a note of L. kawachiana in the next developed inflorescences are longer than the species. subtending leaves and shorter inflorescences appear to be immature and confined on the 7. Lespedeza davidii Franch., Pl. David. upper part of the branches. Observation of 1: 94 (1884); Schindl. in Bot. Jahrb. Syst. 49: fragmental isotype of L. hupehensis in US 580 (1913) & in Sargent, Pl. Wilson. 2: 107 confirmed the species has shorter wings than (1916); S. Akiyama in Univ. Mus. Univ. Tokyo the keel as described by Ricker. Lespedeza Bull. (33):140 (1988); Li & Chen in FRPS 41: hupehensis is, therefore, different from L. 140, pl. 35:1–8 (1995); P. H. Huang in P. Q. Li cyrtobotrya as well as L. kawachiana. & al., Higher Pl. China 7: 186, fig. 279 (2001). Lespedeza hupehensis appears to be [Fig. 9] similar to L. davidii in the calyx, corollae and L. hupehensis Ricker in Lingnan Sci. J. young pods though it differs in having short 20: 202 (1942); X. Y. Zhu & al., Leg. China inflorescences. Considering variation in L. Checklist: 181 (2007). davidii, however, it may be supposed that L. L. merrillii Ricker in Lingnan Sci. J. hupehensis is a poorly developed dwarf form August 2009 Journal of Japanese Botany Vol. 84 No.4 211

Fig. 8. Lespedeza cyrtobotrya Miq. a. Shansi (= Shanxi): Yuan-chu Distr. 16 July 1924. Smith 6324 (A). b. Inflorescences enlarged. Scale bar = 10 mm. 212 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月 of L. davidii or might be a hybrid between L. racemosum; Schindl. in Bot. Jahrb. Syst. 49: davidii and probably L. bicolor. We tentatively 580 (1913). treat the species as a synonym of L. davidii in This species is distributed most widely this paper. in China among the members of the subgenus Lespedeza merrillii Ricker (as “merrilli”) Macrolespedeza and shows wide ranges of was described by Ricker (1942) based on C. morphological variation in stems, leaves Y. Chiao 14377 (NY, US) which was collected and flowers. Many taxa had been described on 21 July 1927 at Yen Tang Shan alt. 2700 on the basis of polymorphic forms of this ft., Zhejiang, China. It was remarked as species. Schindler (1913) recognized first follow: “nearest to L. davidii Franch. but at Lespedeza formosa (Vogel) Koehne as a single once distinguished from it by the sparingly species including such species as synonyms appressed, instead of velvety, pubescence of as Desmodium penduliflorum Oudem., L. the stems and longer calyx teeth (calyx teeth 3 sieboldii Miq., L. viatorum Champ. ex Benth. times longer than the tube)”. This species has and L. elliptica Benth. ex Maxim. This broad been treated by Akiyama (1988) and Li and concept of the species has generally been Chen (1995) merely as an imperfectly known adopted in China. However, Schindler (1913) species. We regard this species as identical overlooked Desmodium thunbergii DC. as with L. davidii, although only one photo of the a species of Lespedeza, which is based on isotype in NY was available in 2006. However, Hedysarum heterocarpon L. in the sense the characterization of the calyx teeth seems to of Thunberg (1784a, 1784b) recorded from be uncertain, because the photo of the isotype Japan. seems to have no mature flowers. Under Schindler considered Thunberg’s Hedy- the circumstance, we tentatively regard L. sarum heterocarpon as it was correctly merrillii as a somewhat glabrous form of L. referred by Thunberg, because he treated the davidii in this paper. However, there remains a name recorded by Thunberg as a synonym possibility that it is a hybrid between L. davidii of Desmodium heterocarpon (L.) DC. and L. thunbergii. (Schindler 1928). The single specimen of H. heterocarpon collected by Thunberg in Japan 8. Lespedeza thunbergii (DC.) Nakai, is in UPS. This is the voucher specimen of Lespedeza Jap. Kor.: 15 (1927); Rehder, Man. Thunberg’s H. heterocarpon L. and is the type Cult. Tr. Shr. ed. 2, 520 (1940); Ricker in of D. thunbergii DC. The specimen is referable Amer. J. Bot. 33: 257 (1946); H. Ohashi in K. to Lespedeza thunbergii (DC.) Nakai (Nakai Iwats. & al., Fl. Jap. IIb: 262 (2001). 1927). Schindler’s treatment, unfortunately, [Figs. 10–13] produced nomenclature confusions for Hedysarum heterocarpon auct. non L.: Lespedeza thunbergii in China. Moreover, Thunb. in Murray, Sp. Pl. ed. 14, 673 (1784), L. thunbergii has often been regarded as a & Fl. Jap.: 287 (1784). synonym of the later synonym L. formosa in Desmodium thunbergii DC., Prodr. 2: 337 China (Fu 1955, Li and Chen 1995, Zhu et al. (1825). 2007). Desmodium formosum Vogel in Nov. Acta Analytical studies on the morphological Acad. Caes. Leop.-Carol. Nat. Cur. 19 (Suppl. variation of L. formosa and L. elliptica were 1): 29 (1843). made by Hsu et al. (1983) in comparison with L. formosa (Vogel) Koehne, Deuts. L. bicolor Turcz. in China. They showed a Dendr. 343 (1893), excl. syn. Desmodium morphological distinction in relative length August 2009 Journal of Japanese Botany Vol. 84 No.4 213

Fig. 9. Lespedeza davidii Franch. a. Guizhou: Jiangkou Xian. 11 Sep. 1986. Bartholomew & al. 1180 (TUS). b. Hunan: Baishazhen. 22 Oct. 2003. Liu 271 (TUS). Scale bar = 10 mm. 214 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月

Fig. 10. Lespedeza thunbergii (DC.) Nakai subsp. thunbergii. Kiangsi (= Jiangxi): Kiukigang. Allison 5 (A). August 2009 Journal of Japanese Botany Vol. 84 No.4 215

Fig. 11. Lespedeza thunbergii subsp. thunbergii. W. Hubei: Shennongjia Forest District. 25 Aug. 1980. Bartholomew & al. 1980 Sino-Amer. Exped. No. 56 (A). 216 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月 in the calyx and corolla among these species 2a. Lateral calyx-lobes usually 1.5–3 times as and the differences were correlated with long as the calyx-tube...... subsp. elliptica geographical distribution in China. They 2b. Lateral calyx-lobes usually 1–1.5 times as long regarded the former two species as subspecies as the calyx-tube ...... subsp. thunbergii of L. bicolor as subsp. elliptica (Benth. ex Maxim.) Hsu et al. and subsp. velutina 8-1. subsp. thunbergii: H. Ohashi in (Nakai) Hsu et al. Akiyama and Ohba (1988) K. Iwats. & al., Fl. Jap. IIb: 262 (2001). also compared morphological variation of L. [Figs. 10–13] formosa with L. elliptica and L. bicolor var. Desmodium thunbergii DC., Prodr. 2: 337 velutina Nakai and got a similar result to Hsu (1825). et al. (1983) among the species. They made Desmodium penduliflorum Oudem. in the new combination of L. formosa subsp. Neerl. Plantent. 2: t. 2 (1866). elliptica (Benth. ex Maxim.) S. Akiyama & H. Lespedeza sieboldii Miq. in Ann. Mus. Ohba and subsp. velutina (Nakai) S. Akiyama Bot. Lugduno-Batavi 3: 47 (1867). & H. Ohba. L. japonica L.H. Bailey, Encyc. Am. Ohashi (2001) made the concept of Hort. 2: 904 (1901); S. Akiyama in Univ. Mus. the species of Schindler (1913) broader Univ. Tokyo Bull. (33): 154 (1988). by inclusion of Lespedeza thunbergii and L. japonica var. albiflora Schindl. in Bot. recognized L. formosa as an infraspecific Jahrb. Syst. 49: 582 (1913). taxon of L. thunbergii. In this paper, our L. bicolor Turcz. var. velutina Nakai in concept of L. thunbergii is similar to Ohashi Bot. Mag. (Tokyo) 37: 74 (1923). (2001), but with a modified circumscription L. penduliflora (Oudem.) Nakai in Bot. of infraspecific taxa. We recognize subsp. Mag. (Tokyo) 37: 79 (1923). thunbergii, subsp. elliptica and subsp. formosa L. japonica var. angustifolia (Nakai) in China. Subsp. thunbergii was circumscribed Nakai, Lespedeza Jap. Kor.: 25 (1927). first probably on cultivated plants growing in L. japonica var. albiflora Nakai, Nagasaki, but has been expanded to include Lespedeza Jap. Kor.: 25 (1927), nom. superfl. wild ones occurring widely in China, Japan L. thunbergii (DC.) Nakai (1927) sens. and Korea. Subsp. formosa is confined to str.: Ohwi, Fl. Jap. ed. Engl.: 559 (1965) & Fl. southern China and Taiwan. Subsp. elliptica is Jap. ed. rev.: 790 (1965); Hatus. in Mem. Fac. a western form of subsp. thunbergii. Agr. Kagoshima Univ. 6: 11 (1967); H. Ohashi The morphological distinctions between in Satake & al., Wild Flow. Jap. Herb. 2: 205 subsp. thunbergii, subsp. elliptica and subsp. (1982); S. Akiyama in Univ. Mus. Univ. Tokyo formosa are as follows: Bull. (33): 158 (1988). L. liukiuensis Hatus. in Mem. Fac. Agr. Key to the subspecies of Lespedeza Kagoshima Univ. 6: 11 (1967). thunbergii L. formosa (Vogel) Koehne subsp. 1a. Flower three to four times as long as velutina (Nakai) S. Akiyama & H. Ohba in calyx; lateral calyx-lobe nearly equal to Himal. Pl. 1: 227 (1988); S. Akiyama in Univ. or slightly shorter than the calyx-tube Mus. Univ. Tokyo Bull. (33): 127 (1988)...... subsp. formosa L. formosa auct. non (Vogel) Koehne: X. 1b. Flower two to three times as long as calyx; F. Gao in Fl. Yunnan. 10: 571 (2006). lateral calyx-lobe longer than or equal to Distr.: Japan, Korea, Taiwan, China the calyx-tube ...... 2 (Anhui, Gansu, Hebei, Henan, Hubei, Hunan, August 2009 Journal of Japanese Botany Vol. 84 No.4 217

Fig. 12. Lespedeza thunbergii (DC.) Nakai subsp. thunbergii. Hupeh (= Hubei): Chienshih Hsien. Chow 1361 (A). 218 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月

Jiangsu, Jiangxi, Shaanxi, Shandong, Sichuan, L. elliptica, L. sieboldii, et L. liukiuensis ut Zhejiang), Japan and Korea. “luchuensis”; P. H. Huang in P. Q. Li & al., Higher Pl. China 7: 184, fig. 276 (2001); X. Y. 8-2. subsp. elliptica (Benth. ex Maxim.) Zhu & al., Leg. China Checklist: 180 (2007), H. Ohashi, comb. nov. [Fig. 14] p.p., excl. Desmodium thunbergii, L. sieboldii, L. elliptica Benth. ex Maxim. in Trudy L. elliptica, L. thunbergii, L. liukiuensis, et L. Imp. S.-Peterburgsk. Bot. Sada 2: 353 (1873). bicolor subsp. elliptica. L. bicolor Turcz. subsp. elliptica (Benth. L. pubescens Hayata in J. Coll. Sci. Univ. ex Maxim.) P. S. Hsu, X. Y. Li & D. X. Gu in Tokyo 30(1): 80 (1911); Li & Chen in FRPS Acta Phytotax. Sinica 21: 315 (1983). 41: 142 (1995); P. H. Huang in P. Q. Li & al., L. formosa (Vogel) Koehne subsp. Higher Pl. China 7: 185, fig. 278 (2001). elliptica (Benth. ex Maxim.) S. Akiyama & H. L. chikiangensis Ricker in Lingnan Sci. J. Ohba in H. Ohba & Malla, Himal. Pl. 1: 226 20: 201 (1942). (1988). L. wilfordii Ricker in Lingnan Sci. J. Distr.: SW. China (Gansu, Guizhou, 20: 203 (1942); Li & Chen in FRPS 41: 143 Hubei, Shaanxi, Sichuan, Yunnan) and E. (1995); P. H. Huang in P. Q. Li & al., Higher India. Pl. China 7: 187, fig. 280: 1–7 (2001); X. Y. Zhu & al., Leg. China Checklist: 187 (2007). 8-3. subsp. formosa (Vogel) H. Ohashi in L. albiflora Ricker in Amer. J. Bot. 33: K. Iwats. & al., Fl. Jap. IIb: 262 (2001), p.p., 257 (1946). excl. pl. ex Japonia, Corea et India. L. penduliflora (Oudem.) Nakai subsp. [Figs. 15, 16] cathayana P. S. Hsu in Acta Phytotax. Sin. 11: Desmodium formosum Vogel in Nov. Acta 193 (1966). Acad. Caes. Leop.-Carol. Nat. Cur. 19 (Suppl. L. hayatae Hatus. in Mem. Fac. Agr. 1): 29 (1843). Kagoshima Univ. 6: 14 (1967), nom. superfl. Lespedeza viatorum Champ. ex Benth. L. bicolor Turcz. subsp. formosa (Vogel) in Hook., J. Bot. 4: 47 (1852); Li & Chen in P. S. Hsu, X. Y. Li & D. X. Gu in Acta FRPS 41: 142 (1995); P. H. Huang in P. Q. Phytotax. Sinica 21: 314 (1983). Li & al., Higher Pl. China 7: 186, fig. 280: 8 L. formosa var. pubescens (Hayata) S. S. (2001); X. Y. Zhu & al., Leg. China Checklist: Ying, Col. Illust. Fl. Taiwan 2: 368 (1987). 187 (2007). L. patens auct. non Nakai: Li & Chen in L. formosa (Vogel) Koehne (1893): FRPS 41: 140 (1995); X. Y. Zhu & al., Leg. Schindl. in Bot. Jahrb. Syst. 49: 580 (1913), China Checklist: 184 (2007). p. p. excl. Desmodium penduliflorum, D. Distr. Southeastern China (Hongkong, racemosum (non DC.) Siebold & Zucc., L. Fujian, Guangdong, Guangxi, Jiangsu, Jiangxi, elliptica et L. sieboldii; & in Sargent, Pl. Zhejiang) and Taiwan. Wilson. 2: 107 (1916); Hatus. in Mem. Fac. Lespedeza thunbergii subsp. formosa Agr. Kagoshima Univ. 6: 7 (1967); S. Akiyama is recognized as a form distributed in & H. Ohba in Himal. Pl. 1: 225 (1988); S. southeastern China and Taiwan. It does not Akiyama in Univ. Mus. Univ. Tokyo Bull. occur in Japan and Korea. (33): 125 (1988); T. C. Huang & H. Ohashi Lespedeza chekiangensis Ricker was in Fl. Taiwan ed. 2, 3: 322, pl. 166 (1993); described from Zhejiang. Although the Li & Chen in FRPS 41: 138 (1995), p.p., holotype of L. chekiangensis Ricker was excl. Desmodium thunbergii, L. thunbergii, missing in NY in 2006, two young flowers August 2009 Journal of Japanese Botany Vol. 84 No.4 219

Fig. 13. Lespedeza thunbergii (DC.) Nakai subsp. thunbergii. Kiangsi (= Jiangxi). Wilson 1617 (A). 220 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月 (Vogel) (Vogel) formosa (DC.) Nakai subsp. Lespedeza thunbergii H. Ohashi. Hong Kong. Hance 622 (GH). Fig. 15. (Benth. ex elliptica (DC.) Nakai subsp. Lespedeza thunbergii Maxim.) H. Ohashi. a. W. Hubei. Wilson 643 (A). b. Yunnan: West of West Yunnan: b. (A). 643 Wilson Hubei. W. a. H. Ohashi. Maxim.) mm. 10 = bar Scale (GH). 6928 Rock Talifu. Fig. 14. August 2009 Journal of Japanese Botany Vol. 84 No.4 221 (Vogel) H. Ohashi. a. Taiwan. Taoyuan Co.: Fuhsing-village. 14 Co.: H. Fuhsing-village. Sep. Taoyuan Ohashi. a. 1983. (Vogel) Taiwan. Ohashi & Nemoto 16802 formosa formosa (DC.) Nakai subsp. Lespedeza Lespedeza thunbergii (TUS). b. Flowers enlarged of a. c. Taiwan. Taichung Co.: Lishan. 9 Nov. 1988. Nemoto & Hoshi 25428C (TUS). d. Fruits enlarged of c. Scale bars = 5 mm. 5 = bars Scale c. of enlarged Fruits d. (TUS). 25428C Hoshi & Nemoto 1988. Nov. 9 Lishan. Co.: Taichung Taiwan. c. a. of enlarged Flowers b. (TUS). Fig. Fig. 16. 222 植物研究雑誌 第 84 巻 第 4 号 2009 年 8 月 from the holotype used by Ricker suggest Michaux. Trudy Imp. S.-Peterburgsk. Bot. Sada 2: 329– this species may be referable to L. thunbergii 388. Nakai T. 1927. Lespedeza of Japan and Korea. The Forest subsp. formosa, though the flower is about 2.5 Experiment Station of Government General of Chosen, times as long as the calyx. The lateral calyx- Keijo. lobes are as long as the calyx-tube. Nakai T. 1939. Notulae ad plantas Asiae orientalis (IX). J. Jap. Bot. 15: 523–541. We are grateful to the following herbaria Ohashi H. 1982. Nomenclatural changes in Leguminosae of for the loan of specimens in their care or for Japan. J. Jap. Bot. 57: 29–30. Ohashi H. 2001. Leguminosae. In: Iwatsuki K., Ohba H. permission of our examination: A, BM, E, and Boufford D. E. (eds.), Flora of Japan IIb: 213–279. GH, K, PE, TAI, Tl, TNS, TUS, and US. Kodansha Ltd., Tokyo. Thanks are due to Dr. D. E. Boufford and Ohashi H. 2005. Desmodieae. In: Lewis G., Schrire B., Dr. A. R. Brach of the Harvard University Mackinder B. and Lock M. (eds.), Legumes of the World. Herbaria, Professor X. Y. Zhu of Institute of pp. 433–446. Royal Botanic Gardens, Kew. Ohashi H., Nemoto T. and Itoh T. 2003. Four naturalized Botany, Chinese Academy of Sciences, and species of Lespedeza (Leguminosae) in Japan. J. Jpn. Professor J. Murata of the University of Tokyo Bot. 78: 50–54. for offering valuable help during our works in Ohashi H., Nemoto T. and Ohashi K. 2009a. A revision of their herbaria. Lespedeza subgenus Lespedeza (Leguminosae) of China. J. Jpn. Bot. 84: 143–166. Ohashi H., Nemoto T. and Ohashi K. 2009b. Identity of References Lespedeza anthobotrya Ricker and L. bracteolata Ricker Akiyama S. 1988. A revision of the genus Lespedeza section (Leguminosae). J. Jpn. Bot. 84: 143–166. Macrolespedeza (Leguminosae). The University Museum, Ohashi H., Polhill R. M. and Schubert B. G. 1981. The University of Tokyo Bulletin (33): 1–170. Desmodieae. In: Polhill R. M. and Raven P. H. (eds.), Akiyama S. and Ohba H. 1988. Taxonomy of Lespedeza Advances in Legume Systematics. Part 1. pp. 292–300. formosa (Vogel) Koehne. In: Ohba H. and Malla S. B. Royal Botanic Gardens, Kew. (eds.), The Himalayan Plants 1: 217–229, plates 48–51. Ohwi J. 1951. New plants from Japan and its neighbours (1). Bailey L. H. 1920. A collection of plants in China. Gentes J. Jap. Bot. 26: 229–236. Herbarum 1(1). Lespedeza. pp. 31–32. Ricker P. L. 1942. Some Asiatic species of Lespedeza. Hatusima S. 1967. Lespedeza: Sects. Macrolespedeza and Lingnan Sci. J. 20: 199–204. Heterolespedeza from Japan, Corea and Formosa. Mem. Ricker P. L. 1946. New and noteworthy Asiatic species of Fac. Agr. Kagoshima Univ. 6: 1–17. Lespedeza. Am. J. Bot. 33: 256–258. Hsu P. S., Li X. Y. and Gu D. X. 1983. An analysis of the Schindler A. K. 1913. Einige Bemerkungen über Lespedeza topoclinal variation of Lespedeza bicolor Turcz. Acta Michx. und ihre nächsten Verwandten. Bot. Jahrb. Syst. Phytotax. Sin. 21: 306–318. 49: 570–658. Hutchinson J. 1964. Genera of Flowering Plants Schindler A. K. 1928. Die Desmodiinen in der botanischen (Angiospermae) based principally on the Genera Literatur nach Linne. Repert. Spec. Nov. Regni Veg. Beih. Plantarum of G. Bentham and J. D. Hooker. 1. Oxford 49: 1–371. Univ. Press, London. Thunberg C. P. 1784a (May–June). Hedysarum. In: Murray J. Institute of Botany, Academia Sinica (Wang W. T. et al.) A. 1784 (May–June). Systema Vegetabilium ed. 14. Jo. 1955. Flora Illustralis Plantarum Primarum Sinicarum. Christ Dieterich, Göttingen. Leguminosae. Science Press, Bejing. Thunberg C. P. 1784b (August). Flora Iaponica. I. G. Müller, Iokawa Y. and Ohashi H. 2007. Lespedeza davidii Franch. Leipzig. (Leguminosae) naturalized in deeply snowy region of Fu S. H. et al. 1955. Lespedeza Michx. In: Institute of Botany, Japan. J. Jpn. Bot. 82: 175–177. Academia Sinica (ed.), Flora Illustralis Plantarum Li J. Y. and Chen Y. A. 1995. Lespedeza. In: Lee S. K. (ed.), Primarum Sinicarum. Leguminosae. pp. 517–532. Flora Reipublicae Popularis Sinicae 41. Leguminosae (3) Science Press, Beijing. Papilionoideae 2. pp. 131–159. Science Press, Beijing (in Zhu X. Y., Du Y. F., Wen J. and Bao B. J. 2007. Legumes of Chinese). China: a Checklist. ILDIS at the School of Biological Maximowicz C. I. 1873. Synopsis Generis Lespedezae, Sciences, the University of Reading, Reading. August 2009 Journal of Japanese Botany Vol. 84 No.4 223

大橋広好 a，根本智行 b，大橋一晶 c：中国産 マメ科ハギ属ヤマハギ亜属の分類 本論文は先に発表した中国産ハギ属ハギ亜属 種，キハギ節にはこれまでキハギとチョウセン についての論文 (Ohashi, Nemoto and K. Ohashi キハギの２種より成るとされていたが，新たに 2009a) と同じ目的でまとめたもので，中国産ヤ ２種を加えて４種とした．これまでの中国産の マハギ亜属の研究史，種の検索表，正名および ヤマハギ亜属の構成種の扱いとして，Schindler 異名の出典と文献，各種の分布，種の分類学的 (1913)，Akiyama (1988)，中国植物志 (1995) と 扱いの根拠などをまとめたものである．各種の 本論文の結論を比較して，表１に示した． 記載文は近く刊行される予定の Flora of China, Ohashi (2001) は ミ ヤ ギ ノ ハ ギ Lespedeza vol. 10 Fabaceae に含まれるので，ここでは省 thunbergii を日本，朝鮮半島，台湾，中国，イ 略した． ンド東部に広く分布する種とした．本論文で 中国でのハギ属の分類は地方的植物誌の報告 はミヤギノハギの種内分類群の設定を Ohashi は多数あるが全体をまとめたものは中国植物志 (2001) か ら 一 部 変 更 し た．subsp. thunbergii 41 巻 (1995) があるだけで，ここではハギ属（＝ は日本，朝鮮半島，中国に，subsp. formosa 胡枝子属）を胡枝子組 sect. Lespedeza と大胡枝 (Vogel) H. Ohashi は台湾と中国南部に，subsp. 子組 sect. Macrolespedeza とに分けていて，大 elliptica (Benth. ex Maxim.) H. Ohashi は中国西 胡枝子組に 12 種を認めている．われわれはハ 南部とインド東部に分布する地理的亜種とみな ギ属をハギ亜属とヤマハギ亜属に分け，さらに した． ヤマハギ亜属をヤマハギ節 sect. Macrolespedeza （a 東北大学植物園津田記念館， とキハギ節 sect. Hetelolespedeza とに細分した． b 石巻専修大学理工学部基礎理学科， ヤマハギ亜属には８種を認め，ヤマハギ節に４ c 岩手医科大学薬学部）