—301—

1. The correct name of Duchesneachrysantha (Zoll. & Moritzi) Miq. inPotentilla

Duchesnea chrysantha (Zoll. & Moritzi)Miq. (Rosaceae) is a perennial herb widelydistributed in southeastern Asia extendingnorthward to Japan. It is closely related toD. indica (Andrews) Focke (�Potentillaindica (Andrews) Th. Wolf). These specieshave sometimes been treated as conspecific(e.g., Kitamura 1954, Mizushima 1957,Kalkman 1968). They are, however, distin-guished by morphological differences inleaves, fruits and achenes (Hara andKurosawa 1959, Sugimoto et al. 1991,Naruhashi 2001) and presence of accessorybuds in axils of leaves in D. chrysantha orabsence in D. indica (Ogura and Kimura1980). Naruhashi (2001) showed a differencein rhizomes between D. chrysantha and D.indica as often thickened in the former butnever in the latter. We confirmed that thick-ened rhizomes are found in young individu-als but are usually not observed in fully

grown ones in D. chrysantha, but not in D.indica (Fig. 1).

The two species are different from eachother in chromosome numbers and karyo-morphology (Hara and Kurosawa 1959,Naruhashi and Iwatsubo 1991a, 1991b).Moreover, the nectar guide near the base ofpetals is visible under UV light in D. indica,but not in D. chrysantha (Naruhashi andIwatsubo 1991c). From these facts, D.chrysantha and D. indica are considered asdistinct species from each other.

Recently, Ohashi and Ohashi (2008) trans-ferred taxa of Duchesnea into Potentilla fol-lowing recent generic revision (Kurtto andEriksson 2003) inferred from phylogeneticstudies (Eriksson et al. 1998). However,they regarded Potentilla chrysantha Trevir.(1818) as identical with Duchesneachrysantha (Zoll. & Moritzi) Miq. that isbased on Fragaria chrysantha Zoll. &Moritzi (1846) described from Java.Potentilla chrysantha Trevir. is distributed inEurope: Balkan peninsula, Romania, Ural,

植物研究雑誌J. Jpn. Bot.83: 301–305 (2008)

Potentilla hebiichigo Yonek. & H. Ohashi (Rosaceae) and Its Distribution

Koji YONEKURAa, Hiroyoshi OHASHI

b and Kazuaki OHASHIc

aBotanical Gardens, Tohoku University, Sendai, 980-0862 JAPAN;E-mail: yonekura@mail.tains.tohoku.ac.jp

bHerbarium TUS, Botanical Gardens, Tohoku University, Sendai, 980-0862 JAPAN;cSchool of Pharmacy, Iwate Medical University,

Yahaba, Iwate Prefecture, 028-3694 JAPAN

(Received on 10 May 2008)

Following the recent generic concept of Potentilla including Duchesnea, a newname P. hebiichigo Yonek. & H. Ohashi is proposed as the replacement name of D.chrysantha (Zoll. & Moritzi) Miq. in the genus Potentilla. The epithet is based on theJapanese name of the species. Distribution area of P. hebiichigo is reconfirmed, becauseit has been ambiguous by difficulty of correct identification of the species.

Key words: Distribution, Duchesnea, nomenclature, Potentilla, Potentilla hebiichigo,replaced name, Rosaceae.

Bulgaria, Yugoslavia, and Central region ofRussia (Ball et al. 1968). Thus Potentillachrysantha Trevir. is different from F.chrysantha Zoll. & Moritzi indicatingPotentilla chrysantha (Zoll. & Moritzi)Trevir. used by Ohashi and Ohashi (2008) isillegitimate and cannot apply to Asian F.chrysantha Zoll. & Moritzi. A new combina-tion based on F. chrysantha Zoll. & Moritziwould produce a later homonym of P.chrysantha Trevir.

Duchesnea formosana Odash. (1935) de-scribed from Taiwan is a name next to F.chrysantha Zoll. & Moritzi in priority for theAsian plant, but the epithet cannot be usedunder Potentilla because of the existence ofPotentilla formosana Hance (1866), al-though it is now considered as a synonym ofP. discolor Bunge. Duchesnea indica var.japonica Kitam. (1954) is a name proposed

for the Asian plants in comparison withNepalese species Fragaria indica Andrewsand Potentilla wallichiana DC., but usage of“japonica” the epithet at the rank of specieswill make another homonym of P. japonicaBlume (1826). Since no combinations areavailable based on Duchesnea chrysantha(Zoll. & Moritzi) Miq. in Potentilla, we pro-pose here a new name, Potentilla hebiichigoas follows:

Potentilla hebiichigo Yonek. & H.Ohashi, nom. nov.

Fragaria chrysantha Zoll. & Moritzi,Syst. Verz. Ind. Archip.: 7 (1846), nonPotentilla chrysantha Trevir. (1818).

Duchesnea chrysantha (Zoll. & Moritzi)Miq., Fl. Ind. Bat. 1: 372 (1855); H. Hara &T. Kuros. in J. Jpn. Bot. 34: 165 (1959);Ohwi, Fl. Jap. ed. Engl.: 523 (1965); Hatus.,

植物研究雑誌 第83巻 第5号 平成20年10月302

Fig. 1. Potentilla hebiichigo (left two) and P. indica (right three) collected in theAobayama Botanical Garden of Tohoku University, Sendai, Japan, showingthickened rhizomes in the former. Photo by Yonekura on 16 May 2008. Voucherspecimens: Yonekura 15360, 15361 (TUS).

Fl. Ryukyus: 307 (1971); T. S. Liu & H. J.Su in H. L. Li & al., Fl. Taiwan 3: 63, t. 479(1977); K. C. Kuan in T. T. Yü, Fl. Reipubl.Popul. Sin.37: 360 (1985), p. p., excl. syn.

Potentilla indica var. wallichiana; Momiy.in Satake & al., Wild Flow. Jap. Herb. Pl. 2:177, t. 167, 4 & 5 (1982); Ohwi & Kitag.,New Fl. Jap.: 832 (1983); H. Ohashi, Fl.Taiwan ed. 2, 3: 75, t. 40 (1993); Naruh., Fl.Jap. 2b: 192 (2001); C. L. Li & al., Fl. China9: 339 (2003), p.p., excl. syn. Potentillawallichiana.

Duchesnea formosana Odash. in J. Soc.Trop. Agric. Taiwan 7: 79 (1935), nonPotentilla formosana Hance (1866).

Duchesnea indica (Andrews) Focke var.japonica Kitam. in Acta Phytotax. Geobot.15: 160 (1954).

Duchesnea indica (Andrews) Focke var.leucocephala Makino f. japonica (Kitam.)M. Mizush. in Misc. Rep. Res. Inst. Nat.Res. (45): 68 (1957); Kitam. & Murata, Col.Ill. Herb. Pl. Jap. 2: 131 (1961).

f. hebiichigof. leucocephala (Makino) Yonek. & H.

Ohashi, comb. nov.Duchesnea indica (Andrews) Focke var.

leucocephala Makino in J. Jpn. Bot. 7: 6(1931).

Duchesnea indica (Andrews) Focke f.leucocephala (Makino) M. Mizush. in Misc.Rep. Res. Inst. Nat. Res. (45): 68 (1957), asvar. leucocephala Makino f. leucocephala.

Duchesnea chrysantha (Zoll. & Moritzi)Miq. f. leucocephala (Makino) H. Hara in J.Jpn. Bot. 34: 166 (1959); Naruh., Fl. Jap.2b: 192 (2001).

Potentilla chrysantha Trevir. f.leucocephala (Makino) H. Ohashi in J. Jpn.Bot. 83: 60 (2008).

2. Distribution of Potentilla hebiichigoYonek. & H. Ohashi

Distribution area of Potentilla hebiichigoYonek. & H. Ohashi (� Duchesnea

chrysantha (Zoll. & Moritzi) Miq.) is some-what ambiguous due to difficulty of identifi-cation of the species. Kalkman (1968), as‘Group a’ of a part of P. indica, recorded theplant from India, China, Japan, Taiwan,Luzon, Java, Bali and Timor. Kuan (1985)and Li et al. (2003) listed regions of D.chrysantha (Zoll. & Moritzi) Miq. as China,India, Indonesia, Japan, Korea and Malaysia.Li et al. (2003) cited P. wallichiana Ser.(1825) described from Nepal as a synonymof D. chrysantha, but the type of P.wallichiana is actually P. indica (D. indica)(Hara and Kurosawa 1959, Hara 1979).Naruhashi and Iwatsubo (1991c) reportedonly dodecaploid plants referable to P.indica from Nepal.

Potentilla hebiichigo (as Duchesneachrysantha) is reported from mainland China(Li et al. 2003). As far as we examined, wefound only one specimen of true P.hebiichigo collected from Jiujiang County,Jiangxi Prov. (C. M. Tan 98109, TUS);while the other specimens of Duchesneafrom mainland China in TUS are all refer-able to Potentilla indica (as D. indica). Itshould be noted that Jiangxi Province, the lo-cality the specimen collected, is outside ofthe distribution area of the species providedby Li et al. (2003). Although farther exten-sive study would be necessary, P. hebiichigoseems rare in southeastern China.

Potentilla hebiichigo (as Duchesneachrysantha) has been considered as the onlyelement of the Duchesnea group in Koreafloras (T. B. Lee 1980, W. T. Lee 1996),while Hara and Kurosawa (1959) andKalkman (1968) recorded only P. indica (asD. indica) from Korea and did not includethe region as a distribution area of P.hebiichigo. Indeed, photographs or illustra-tions of ‘D. chrysantha’ in Korean Flora(e.g., fig. 934 of Y. N. Lee 1996) seem iden-tifiable as P. indica. In addition, all speci-mens of Duchesnea from Korea we haveexamined in TUS are referable to P. indica.

Journal of Japanese Botany Vol. 83 No. 5October 2008 303

Lee and Lee (2003) showed a thickened rhi-zome of D. chrysantha. Accordingly, this re-port confirms the distribution of the speciesfrom Korea judging together with its leafcharacters observed in their picture.Potentilla hebiichigo seems much rarer thanP. indica in Korea.

Hara and Kurosawa (1959) and Naruhashi(2001) recorded Duchesnea chrysantha fromIndo-China, but Vidal (1968) recorded onlyD. indica from the region. Vidal noted thedistribution area of D. chrysantha in Japan,Taiwan and Java. Thus distribution ofPotentilla hebiichigo in Indo-China seemsuncertain.

Our reconfirmation shows the distributionof Potentilla hebiichigo is at present fromJapan (Hokkaido, Honshu, Shikoku, Kyushuand Ryukyu), Taiwan, Korea (rare), China(rare in southeastern part), Philippines andIndonesia (Java, Bali, Timor).

3. Hybrid between Potentilla hebiichigoand P. indica

The hybrid formula for Potentilla ×harakurosawae (Naruh. & M. Sugim.) H.Ohashi in J. Jpn. Bot. 83: 60 (2008) isemended as follows:

Hybrid formula: Potentilla hebiichigoYonek. & H. Ohashi × P. indica (Andrews)Th. Wolf.

References

Ball P. W., Pawlowski B. and Walters S. M. 1968.Potentilla L. In: Tutin T. G. et al. (eds.), FloraEuropaea. 2: 36–47. Cambridge at the UniversityPress.

Eriksson T., Donoghue M. J. and Hibbs M. S. 1998.Phylogenetic analysis of Potentilla using DNA se-quences of nuclear ribosomal internal transcribedspacers (ITS), and implications for the classifica-tion of Rosoideae (Rosaceae). Pl. Syst. Evol. 211:155–179.

Hara H. 1979. Duchesnea Smith. In: Hara H. andWilliams L. H. J. (eds.), An Enumeration ofFlowering Plants of Nepal 2: 136. Trustees ofBritish Museum (Natural History), London.

Hara H. and Kurosawa S. 1959. On the Duchesnea

indica group. J. Jpn. Bot. 34: 161–166.Kalkman C. 1968. Potentilla, Duchesnea, and

Fragaria in Malesia. Blumea 16(2): 325–354.Kitamura S. 1954. Miscellaneous notes on Himalayan

plants (Himalaya shokubutsu zatsudan). Act.Phytotax. Geobot. 15: 159–160 (in Japanese).

Kitamura S. and Murata G. 1961. Duchesnea.Coloured Illustrations of Herbaceous Plants ofJapan (Choripetalae): 131. Hoikusha Publ., Osaka(in Japanese).

Kuan K.-C. 1985. Duchesnea. In: Yü T.-T. (ed.), FloraReipublicae Popularis Sinicae 37: 357–360.Science Press, Beijing (in Chinese).

Kurtto A. and Eriksson T. 2003. Atlas FloraeEuropaeae notes. 15. Generic delimitation andnomenclatural adjustments in Potentilleae(Rosaceae). Ann. Bot. Fennici 40(2): 135–141.

Lee T.-B. 1980. Illustrated Flora of Korea. Seoul (inKorean).

Lee W.-T. 1996. Lineamenta Florae Koreae 1.Academy Books, Seoul (in Korean).

Lee Y.-N. 1996. Flora of Korea. Kyohak Publ., Seoul.Lee Y.-N. and Lee D.-H. 2003. Additional taxonomic

characters. Bull. Korea Pl. Res. (3): 36–37.Li C.-L., Ikeda H. and Ohba H. 2003. Duchesnea

Smith. In: Wu, Z.-Y. and Raven P. (eds.), Flora ofChina 9: 338–339. Science Press, Beijing andMissouri Botanical Garden Press, St. Louis.

Mizushima M. 1957. Additional notes on the flora ofisl. Aogashima (2). Misc. Rep. Res. Inst. Nat.Resources (45): 64–68.

Naruhashi N. 2001. Duchesnea Sm. In: Iwatsuki K.,Boufford D. E. and Ohba H. (eds.), Flora of Japan2b: 191–193. Kodansha Publ., Tokyo.

Naruhashi N. and Iwatsubo Y. 1991a. Karyologicalstudies of Duchesnea (Rosaceae). Cytologia 56:143–149.

Naruhashi N. and Iwatsubo Y. 1991b. Cytotaxonomicstudy on two putative hybrids in the genusDuchesnea (Rosaceae). Bot. Mag. (Tokyo) 104:137–143.

Naruhashi N. and Iwatsubo Y. 1991c. Comparativemorphology of flowers and chromosome numbersin Duchesnea indica (Rosaceae) from Nepal andJapan. In: Ohba H. and Malla S. B. (eds.),Himalayan Plants 2: 11–15, t. 1–4.

Ogura H. and Kimura C. 1980. The inflorescences intwo species of Duchesnea. J. Jpn. Bot. 55(9): 270–279 (in Japanese).

Ohashi H. and Ohashi K. 2008. New combination inPotentilla with Duchesnea (Rosaceae). J. Jpn. Bot.83(1): 60–61.

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Phytogeogr. Taxon. 39: 87–95.Vidal J. E. 1968. Duchesnea J. E. Smith. Flore du

Cambodge, du Laos et du Vietnam 6: 111–115.Muséum National d’Historie Naturelle, Paris.

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米倉浩司a, 大橋広好b, 大橋一晶c：キジムシロ属ヘビイチゴの学名と分布ヘビイチゴ属は近年の研究の結果キジムシロ属に含まれることが明らかになっていることから,大橋・大橋は本誌83巻 1号においてヘビイチゴ属の諸分類群をキジムシロ属に組み替えた. しかし,その報告でヘビイチゴに対して用いた Potentillachrysantha Trevir.は東ヨーロッパ産の種類に対してつけられた名前で, アジア産のヘビイチゴとは別種であった. 従来ヘビイチゴに使用されてきたDuchesnea chrysantha (Zoll. & Moritzi) Miq.の基礎異名 Fragaria chrysantha Zoll. & Moritziはジャワから記載された種であり, この形容語を使用してキジムシロ属に組み替えると, 同名となることから使用することができない. その他にもキジムシロ属の下で種ランクで使用可能な種形容語を持つヘビイチゴの学名がないため, ここで新名Potentilla hebiichigo Yonek. & H. Ohashiを提案した. 新形容語は和名ヘビイチゴに基づく. この変更に伴って品種シロミノヘビイチゴもその下に組

み替えた.ヘビイチゴは長年近縁のヤブヘビイチゴと混同されてきたため, その正確な分布がはっきりしていない. 中国大陸や韓国においてヘビイチゴは広く分布することになっているが, その標本の大部分はヤブヘビイチゴであり, 中国や韓国の図鑑のヘビイチゴの図も多くは誤っている. 確実な分布域は日本, 台湾, 東南アジアの島嶼部であり, 韓国と中国大陸には産することは間違いないがヘビイチゴはヤブヘビイチゴよりも明らかに稀であるらしい.なお, ヘビイチゴの学名変更にともない, アイノコヘビイチゴ Potentilla ×harakurosawae (Naruh.& M. Sugim.) H. Ohashiの雑種式も訂正した.

(a東北大学植物園,b東北大学植物園津田記念館,

c岩手医科大学薬学部)