ISSN 1346-7565 INSTRUCTIONS TO AUTHORSActa Phytotax. Geobot. 68 (3): 129–144 (2017) doi: 10.18942/apg.201708 Acta Phytotaxonomica et Geobotanica (Revised October, 2017)

Editor-in-Chief Members of the Japanese Society for Systematics Matsumura, J. 1912. Index Plantarum Japonicarum, vol. TAMURA, Minoru N. (Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan) are encouragedMorphological to submit manuscripts pertinentand Molecular to plant 2.Phylogenetic Maruzen, Tokyo. Analyses of , systematic botany, phytogeography and close- Ridder-Numan, J. 1997. The continuing story of Spatho- Editors ly related disciplines for Geraniumpublication in Acta yesoense Phytotaxo -()lobus (Leguminosae-Papilionoideae) in Japan and its allies. In: BOUFFORD, David E. (Boston, U.S.A.) MAKI, Masayuki (Sendai, Japan) nomica et Geobotanica. Contribution from non-members Dransfield, J., M. J. E. Coode & D. A. Simpson (eds.), abroad is also welcome, and if accepted, may be entitled Plant Diversity in Malesia III, pp. 205–217. The Royal EBIHARA, Atsushi (Tsukuba, Japan) NAIKI, Akiyo (Taketomi, Japan) free of charge for publication. Botanic Gardens, Kew. FUSE, Shizuka (Kyoto, Japan) TAKAMIYA, Masayuki (Kumamoto, Japan) 1 2,† 3 1,4,* Yuki Wakasugi , Hiroshi Azuma , AkiWain,yo R.N aikiP., W. T. a Hallernd S &ac D.h F.iko Maktin. Nis h1985.ida Isozymes IKEDA, Hiroshi (Tokyo, Japan) TSUBOTA, Hiromi (Hiroshima, Japan) Manuscripts should be written in English. in studies of aquatic . J. Aquatic Pl. Managem. KUROSAWA, Takahide (Fukushima, Japan) WATANO, Yasuyuki (Chiba, Japan) Full original papers are limited to 20 printed pages in 23: 42–45. length including tables and figures. Short communi- Tables should be included the heading, a lucid legend to 1Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan; Editorial Board cations2 are limited to 4 printed pages. With the approv- explain the meaning of the† content. al ofGraduate the Editorial School Board, of Science, additional Kyoto pages University, may be Sakyo-ku,pub- Figures Kyoto 606-8502,should be preparedJapan; Present as follows: Name (a) Size& Address: for figures FUJII, Shinji (Okazaki, Japan) OHMURA, Yoshihito (Tsukuba, Japan) Hiroshi Suzuki; Liberal arts and Sciences, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, lished only at the author’s expense 3(3,000 Yen per as published should be less than 135 × 180 mm for a KAWAKUBO, Nobumitsu (Gifu, Japan) PAK, Jae-hong (Taegu, Korea) page).Imizu-shi, Monographs Toyama 939-0398,exceeding Japan; 30 printed Iriomote pages Station, may Tropicalwhole Biosphere page. (b) LegendsResearch for Center, figures University should be of grouped the MURAKAMI, Noriaki (Hachioji, Japan) PENG, Ching-I (Taipei, Republic of China) Ryukyus, Taketomi-cho, Yaeyama-gun 907-1541, Japan; be compiled in 4supplementary issues. 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NISHIDA, Harufumi (Tokyo, Japan) YAMADA, Toshihiro (Kanazawa, Japan) Preparation of Manuscripts: Whether or not the manuscript is accepted and the or- Cover sheet should contain (a) full name(s) of author(s) der of publication is to be decided by the Editorial NISHIDA, Sachiko (Nagoya, Japan) YONEKURA, Koji (Sendai, Japan) yesoense (Geraniaceae) includes several varieties that are mainly discriminated by two mor- and address, (b) the corresponding author’s name, un- Committee after peer reviews by two or more referees. abbreviatedphological complete features, address, namely, phonethe degree and offacsimile leaf incision andThe the positions density andof spreading scale of figureshairs on and the tablessepals, in pub- numberbut andthese e-mail features address, have never(c) title, been (d) objectivelynumbers of quantified.fig- lished To clarify page maywhether be changed these features from the can author’s truly dis designa- - Acta Phytotaxonomica et Geobotanica (APG) is an international peer-reviewed journal published ures andcriminate tables, varieties, and (e) running we analyzed title including leaf shape author’s and sepal pubescence,tion. and conducted a molecular phyloge- three times a year by the Japanese Society for Plant Systematics. It is the continuation of the jour- familynetic name analysis with less using than nuclear 50 characters. and chloroplast DNA. OurGalley morphological proof will analyses be sent showed to the correspondingsome trends in author. nal Societas Phytogeographica Kyoto, Japan. APG publishes research manuscripts in the fields of tax- Type inleaf double-space morphology on and one density side of ofA4 hairs, size papers but failed with to identifyThe anyauthors groupings are responsible that could for be reading clearly thedistin first- galley onomy, phylogeny, evolution, conservation, biogeography of plants (including algae and fungi) and marginguished at least on the2.5 basiscm wide.of these Each features. typewritten Our molecular page analysisproof. recognized No change G. of yesoense the content as a distinctof the manuscripttaxon, is but did not support the existence of subgroups within the species. We conclude that G. yesoense must be related disciplines. Contributions devoted to new taxa, nomenclature, monographs, floristic studies usually consists of 25 lines. permitted on the galley proof. If the Editors recognize Arrangetreated the manuscript as a single taxon in the with order some listed tendency below towardand morphologicalthe necessity variation for a change, depending this change on locality may andbe made at and genetic variation are also invited. Instructions to Authors are on cover page 3. All manuscripts habitat. should be sent to the Editor-in-Chief. number all pages consecutively, including tables and the author’s expense. figures. Offprints. The authors will receive free of charge 50 off- Title ofKey paper words:, name(s) Geranium of author(s) yesoense and, molecular affiliation phylogeny, with morphology,prints. Additional taxonomy copies can be obtained at author’s Application of admission for membership of the society should be addressed to the Treasurer, Dr. Ha- addresses. cost. jime Ikeda (Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, Abstract should be a lucid digest of the paper, not ex- Copyright. The articles published in APG are subject to Okayama 710-0046, Japan) and other correspondences the Secretary, Dr. Nobuyuki Tanaka (Depart- ceeding 200 words for a full paper. copyright. All rights are reserved by the Japanese Soci- ment of Botany, National Museum of Nature and Science, Amakubo 4-1-1, Tsukuba, Ibaraki 305-005,Ja- Key words not more than 10 words are arranged in an al- ety for Plant Systematics. The authors should submit pan). The annual fee is 5,000 Yen for Japanese members, 3,000 Yen for student members and 3,000 Yen phabeticalGeranium order. L., the largest of Geraniace- longingthe agreement to four that of thesethe copyright species for have their been article de is- for foreign members resided in abroad. APG is available by subscription for 8,000 Yen per year by the ae,Text comprises containing aboutIntroduction 420 species (without and heading), a worldwide Materi- scribedtransferred (Akiyama to the Japanese 2001). SocietyThe species for Plant of SystematGerani- Treasurer. distributionals and Methods, (Aedo Results, et al. Discussion,1998). Intensive and Acknowl taxo- umics in when Japan the arearticle usually is accepted clearly to publication. distinguished on edgments is suggested. Scientific names are written in Submit all manuscripts by an e-mail or a registered mail nomic studies have been conducted mainly by the basis of objective categories or numeric scales Reprographic Reproduction outside Japan Italic. Scientific names that appear firstly in each para- to Editor-in-Chief, Dr. Minoru N. Tamura, Graduate Aedograph and should his colleaguesbe unabbreviated. (e.g., AedoVoucher et specimensal. 1998, (e.g.,School Shimizu of Science, 1982, KyotoAkiyama University, 2001). Sakyo,In contrast, Kyoto Making a copy of this publication 2002,should Aedo be cited. 2008), Abbreviations but the taxonomy of herbaria of should Gerani fol- varieties606-8502, are Japan. often discriminated only by relative Please obtain permission from the following Reproduction Rights Organizations (RROs) to which the copyright low Index Herbariorum. E-mail: [email protected] holder has consigned the management of the copyright regarding reprographic reproduction. um is still far from being completely resolved, measurements of some morphological trait (Shi- presumablyReferences cited owing in the to text the should large benumber arranged of alphabet species- mizu 1982, Akiyama 2001), with the result that it Obtaining permission to quote, reproduce; translate, etc. ically according to the name(s) of author(s). Text refer- Please contact the Secretary of the society. andence the should limited be made morphological by the author’s variation names followed among by is difficult to identify specimens as belonging to speciesthe year (Pax of etpublication. al. 1997). Molecular[for example: phylogenetic Matsumura a particular variety. In particular, this is the case Users in countries and regions where there is a local RRO under bilateral contact with Japan Academic Associa- studies(1912), have or (Matsumura begun to 1912)].uncover If therelationships number of authors with- for varieties of G. yesoense Franch. & Sav. We tion for Copyright Clearance (JAACC). in isGeranium three or more, and use with Takamiya related et taxa al. (1997), (e.g., orPrice (Taka &- focus here on the varieties of G. yesoense as a Users in countries and regions of which RROs are listed on the following website are requested to contact the re- Palmermiya et 1993, al. 1997). Pax Each et al. reference 1997, Fiz should et al. be 2008),given in but the step toward clarifying the taxonomy of Geranium spective RROs directly to obtain permission. following form: manySheh, M.-L. species 1992. are Peucedanum. still unexamined. In: Shan, R.-H. & M.-L. in Japan. Japan Academic Association for Copyright Clearance (JAACC) ShehIn Japan, (eds.), Flora12 native Reipublicae species Popularis of Geranium Sinicae, have vol. In recent Japanese literature, three varieties of Address 9-6-41 Akasaka, Minato-ku, Tokyo 107-0052 Japan been55 (3), reported, pp. 123–175. and Science a total Press, of nine Beijing varieties (in Chinese). be- G. yesoense have been recognized: var. yeso- Website http://www.jaacc.jp/ E-mail [email protected] Fax: +81-3-3475-5619 130 Acta Phytotax. Geobot. Vol. 68 sense, var. nipponicum Nakai, and var. pseudo- cence with spreading hairs, and examined wheth- palustre Nakai (Akiyama 2001; see Ikeda et al. er these features could be used to recognize the 2015 regarding the alternative varietal name locality-based groupings. In addition to these fea- pseudopalustre). These varieties have been dis- tures, we examined petal lobing, because this fea- criminated mainly on the basis of the relative de- ture was once used to distinguish var. lobatoden- gree of leaf incision or the relative density of tatum Takeda [later treated as var. yesoense f. lo- spreading hairs on the sepals (note well that they batodentatum (Takeda) Tatew.]. We also conduct- are not appressed hairs), but these features have ed a molecular phylogenetic analysis using chlo- never been objectively quantified. Shimizu (1982) roplast and nuclear DNA, not only of G. yesoense distinguished var. yesoense from the other variet- but also of other major species of Geranium in ies by its sepals, which are densely pubescent Japan. Based on our results, we discuss the valid- with spreading hairs, and recognized var. nippon- ity of the morphological features for distinguish- icum as having few spreading hairs on the sepals ing groupings within G. yesoense and propose a and var. pseudopalustre as having both shallowly taxonomic treatment for the species. incised leaves and sparse spreading hairs on the sepals. Akiyama (2001) first discriminated var. nipponicum from the other two varieties on the Materials and Methods basis of its pedicels having retrorse or sometimes sparse spreading hairs, then identified var. ye- Plant materials soense by its deeply incised leaves and its densely We analyzed the leaf morphology of 266 pubescent spreading hairs on the sepals, and var. specimens in the herbaria KYO, NUM, P, TI, pseudopalustre by its shallowly incised leaves SAP, TNS, and TUS (Appendix 1) and 143 living and sparse spreading hairs on the sepals. Al- individuals in the field. We analyzed sepal pubes- though both Shimizu (1982) and Akiyama (2001) cence of 236 herbarium specimens (Appendix 2) emphasized leaf incision and pubescent sepals and 619 living individuals in the field. The num- with spreading hairs, they did not clearly differ- ber of plants examined by locality and the vouch- entiate between ‘shallowly’ and ‘deeply’ incised er specimen numbers of the living plants are leaves, or between ‘sparse’ and ‘dense’ sepal pu- shown in Table 1. In addition, we analyzed the bescence, with the result that it can be difficult to petal morphology of 348 living individuals in the recognize these varieties. field (it is difficult to determine petal lobing in The purpose of this study was to evaluate the pressed herbarium specimens). For molecular taxonomy of Geranium yesoense by analyzing its analyses, we used 72 samples from 12 species of morphology and molecular phylogeny. In a pre- Japanese Geranium from 36 localities (Table 2). liminary survey, we found that groups of speci- We first conducted the morphological exami- mens identified as different varieties mostly have nations and molecular analyses without discrimi- different distributions (Fig. 1). It is possible that nating the samples by locality, but afterward we this geographical separation only reflects the ten- analyzed the results by referring to three regions: dency to identify specimens according to the lo- an eastern coastal region, a western coastal re- cality in which they were found when they cannot gion, and a mountain region (Fig. 1). Specimens be clearly distinguished by morphology. Never- from these regions are usually identified as var. theless, this separation by locality provides a pre- yesoense, var. pseudopalustre, and var. nipponi- liminary means of identifying varieties that is in- cum, respectively. dependent of morphology. We therefore per- formed quantitative analyses of the morphology Morphological analysis of leaf shape of Geranium in Japan, focusing on the two fea- We used a PIXUS MG6330 scanner (Canon, tures emphasized by both Shimizu (1982) and Inc.) to produce digital images of the leaves of the Akiyama (2001), leaf incision and sepal pubes- herbarium specimens and of leaves collected October 2017 Wakasugi & al.— Taxonomy of Geranium yesoense 131 from plants on Mt. Mahiru. In addition, we used specimens. photographs of leaves from Hakusan and Tane- sashi mountains. The photographs were obtained Examination of petal lobing nondestructively with a digital camera (GX200, We examined the edges of petals on living RICOH) by inserting each leaf between a sheet of plants at localities on the eastern coast of Hok- paper and a non-reflecting glass plate. Distortion kaido (Akkeshi, Shiranuka, Onbetsu, Toyokoro), or tilt of the photographic images was corrected the western coast of Aomori (Fukaura) and Akita by using GIMP software (The GIMP Develop- (Oga) prefectures, and in mountains in Akita (Mt. ment Team). Mahiru) and Ishikawa (Hakusan) prefectures. We To measure the leaves, we first outlined each arbitrarily selected at least 10 and up to about 70 leaf image using ImageJ software (Schneider et blooming plants of Geranium yesoense in each al. 2012) and marked key points: the base (A), the locality (the number of plants depended on the lowest points between the central lobe of the leaf population size and the available searching time) and the two adjacent lobes (B, H), three apices of and identified the petals as either lobed or entire. the central lobe (C, E, G), and the lowest points of the two larger incisions in the central lobe (D, F) Molecular phylogenetic analysis (Fig. 2). We then defined the length of line AE as Total genomic DNA was extracted from leaves ‘full length,’ the ratio of the average of the lengths dried in silica gel by the Saline Tris EDTA (STE) / of CB and GH to AE as ‘incision depth 1,’ and the cetyltrimethylammonium bromide (CTAB) meth- ratio of the average of the lengths of ED and EF to od (Shepherd & McLay 2011). AE as ‘incision depth 2.’ We also defined angle We amplified the trnL intron plus trnL-trnF BAH as ‘angle 1,’ and angle DEF as ‘angle 2.’ (trnL5'-3'-trnF hereafter) and internal transcribed We then conducted a principal component spacer (ITS) regions by polymerase chain reac- analysis (Ringnér 2008) with R version 3.0.3 (R tion (PCR). The PCR mixture (20 µL) contained Core Team 2014). In this analysis, we used the in- 2 µL template DNA, 0.6 µL dNTPs (10 mM each), cision depth 1, incision depth 2, angle 1, and an- 1 µL of each primer (10 µM), 1 µL DMSO, 0.4 µL gle 2 values of each sample. A preliminary analy- BSA, 1.4 µL of MgCl2 (25 mM), 4 µL of 5× Taq sis using only those samples with obviously deep buffer (without Mg2+), and 1.25 U KAPATaq EX- (N = 11) or obviously shallow (N = 22) incisions tra DNA Polymerase (NIPPON Genetics Co. Ltd. confirmed that the selected measuring points Japan), or it contained 2 µL template DNA, 1 µL could be used to clearly discriminate between of each primer (10 µM), 1 µL dimethyl sulfoxide two categories of specimens (Fig. 3). (DMSO), 0.4 µL bovine serum albumin (BSA), 10 µL 2× Ampdirect (Shimadzu Corporation), Analysis of the density of spreading hairs on the and 1.25 U TaKaRa Ex Taq HS (Takara Bio Inc. sepals Japan). We used the same primers for amplifica- We examined sepal pubescence under a ste- tion as Nishida et al. (2012). The PCR analysis reomicroscope (model SZX7, Olympus Corpora- was performed with a MultiGene™ Mini Person- tion). We arbitrarily chose one flower bud from al Thermal Cycler (Labnet International, Inc.), each specimen and counted spreading hairs along starting at 94°C (3 min), followed by 35 cycles of the central vein of a sepal (~1 cm long). We then denaturation at 94°C (40 s), annealing at 50°C (1 defined an individual with at least 15 spreading min), and extension at 72°C (1 min), with a final hairs as having ‘dense’ pubescence, one with 10– extension at 72°C (5 min). After electrophoresis 14 spreading hairs as having ‘moderate’ pubes- on 1% agarose-TAE gel stained with ethidium cence, and one with 9 or fewer spreading hairs as bromide, we checked for a single band and then having ‘sparse’ pubescence. We visualized this purified the rest of the PCR products with an en- feature by mapping the pubescence type of speci- zyme treatment. We added 1 µL Exonuclease (GE mens from localities with at least three examined Healthcare UK Ltd.) and 1 µL alkaline phospha- 132 Acta Phytotax. Geobot. Vol. 68

Kunashiri Koshimizu Iturup Tomakomai Eastern coastal region Nemuro Shiraoi Akkeshi Western coastal region Hakodate Kushiro Shiranuka Kazamaura Onbetsu Mountain region Hidaka Taiki Toyokoro Fukaura Higashidori

Oga Tanesashi

Mt. Chokai

Mt. Naeba Mt. Mahiru

Mt. Hakusan Senjogahara

Mt. Ibuki Kirigamine Mt. Yatsugatake Elev. (m) Utsukushigahara 2900

750 300

Fig. 1. Distribution of Geranium yesoense and localities at which morphology of at least three specimens was analyzed. Most specimens from the eastern coastal region (blue) have usually been identified as var. yesoense, most from the western coastal region (green) as var. pseudopalustre, and most from the mountain region (red) as var. nipponicum.

tase (GE Healthcare UK Ltd.) to 10 µL of each based on Bayesian information criteria (BIC) val- PCR product, and heated the mixtures at 37°C for ues of 24 possible combinations of substitution 15 min and then at 80°C for 15 min to degrade re- models and rate descriptions, and then analyzed maining primers and dephosphorylate any re- the selected model, also with MEGA6. We finally maining dNTPs. chose Tamura’s three-parameter model as having After applying the BigDye Terminator ver- the lowest BIC value for all data sets, including sion 3.1 Cyclic Sequencing Ready Reaction Kit the combined data set (trnL5'-3'-trnF + ITS). We (Applied Biosystems Japan Ltd.), the PCR prod- used nearest-neighbor interchange (NNI) as the ucts were put through direct sequencing of both ML heuristic method, by which the initial tree strands using an ABI 3100 Genetic Analyzer was automatically obtained. We performed 500 (Applied Biosystems) at the Nagoya University bootstrap replications using the same settings. Center for Gene Research. The same primers Accession numbers of sequences obtained and were used for sequencing as for amplification. We used in this study are listed in Table 2. then aligned the DNA sequences obtained by us- ing MEGA6 (Tamura et al. 2013) and MUSCLE software (Edgar 2004). Results Using the MEGA6 software, we conducted maximum likelihood (ML) analyses of the se- Principal component analysis of the leaf mor- quences and selected the best substitution model phology October 2017 Wakasugi & al.— Taxonomy of Geranium yesoense 133

In the examined samples, we recognized no distinct groupings with respect to leaf morpholo- E gy. The distributions of incision depth 1, incision depth 2, angle 1, and angle 2 values were all uni- G modal and more or less bell-shaped (Fig. 4). In C samples from the western coastal region (western F Hokkaido, Aomori and Akita), incision depth 1 D and incision depth 2 tended to be shallower and angle 2 tended to be wider in comparison with H many samples from other regions (Fig. 4A, B, and B D). In fact, angle 2 was greater than 28° in many of the western coastal samples, but in few sam- A ples from the other regions. Nevertheless, the dis- tribution of angle 2 values was continuous, and in some samples from the eastern coastal and moun- Fig. 2. Leaf diagram showing key points used for measure- tain regions angle 2 was between 21° and 27°. ments used to characterize leaf shape in the morpholog- The principal component analysis results for ical analysis. Parameters: full length, AE; incision depth 1, [(CB + GH)/2]/AE; incision depth 2, [(ED + EF)/2]/ these four parameters considered together showed AE; angle 1, angle BAH; angle 2, angle DEF. no distinct groupings (Fig. 5). 4 4 2 2 2 ) (

n t

Incision depth 2

p o n e Angle 2 0 0 o m c

l p a i n c i r P 2 - 2

- Incision depth 1 Angle 1 4 - 4 -

-4-4 -2-2 00 22 44 Principal component (1) Fig. 3. Preliminary principal component analysis results for leaf shape. Eleven samples with obviously shallow incisions (red squares) and 22 with obviously deep incisions (blue circles) were used. 134 Acta Phytotax. Geobot. Vol. 68

Table 1. Localities from which materials used for morphological analyses were obtained and list of vouchers for living mate- rials studied. Localities at which at least three samples were examined for either leaf incision or sepal pubescence are listed (see Fig. 1); results for other localities are summarized by prefecture. Voucher specimens were deposited at NUM. Other herbarium specimens are listed in Appendices 1 & 2.

No. of plants Vouchers for the study of living Locality Leaf incision Leaf incision materials Iturup 10 10 Kunashiri 5 5 Koshimizu 8 5 Akkeshi 8 8 Nishida 2013025–2013028 Nemuro 9 9 Kushiro 7 7 Shiranuka 3 75 Nishida 2013018–2013024 Hokkaido Onbetsu 0 40 Nishida 2013029, 2013030 Toyokoro 0 74 Nishida 2013033–2013035 Taiki 5 106 Nishida 2013036–2013038 Hidaka 4 4 Shiraoi 4 4 Tomakomai 13 108 Nishida 2013012–2013017 Hakodate 3 3 others 29 25 Kazamaura 4 4 Higashidori 4 2 Aomori Tanesashi 41 42 Fukaura 5 54 Nishida 2013054–2013063 others 3 4 Oga 17 57 Nishida 2013039–2013053 Akita Mt. Mahiru 22 22 Nishida 2014057–2014063 others 1 1 Iwate others 2 2 Fukushima others 2 1 Mt. Chokai 4 4 Yamagata others 3 1 Miyagi others 4 4 Mt. Naeba 4 4 Niigata others 9 6 Gunma others 15 13 Senjogahara 4 2 Tochigi others 5 4 Mt. Yatsugatake 6 6 Yamanashi others 3 2 Kirigamine 3 2 Nagano Utsukushigahara 7 7 others 28 20 Toyama others 8 7 Ishikawa Hakusan 66 73 Nishida 2014051–2014056 Fukui others 2 2 Shiga Mt. Ibuki 29 26 Total 409 855 October 2017 Wakasugi & al.— Taxonomy of Geranium yesoense 135

Table 2. Materials used for the molecular analyses. Accession number Species Regions Locality No. of Voucher specimen no. name plants (herbarium) ITS trnLF Eastern coastal Akkeshi, Hokkaido 1 Nishida 2013028 (NUM) LC125478 LC143834 Eastern coastal Koshimizu, Hokkaido 1 Tsuda s.n. (Gifu Univ.) LC125479 LC143835 Eastern coastal Onbetsu, Hokkaido 1 Nishida 2013030 (NUM) LC125477 LC143833 Eastern coastal Shiranuka, Hokkaido 1 Nishida 2013021 (NUM) LC125468 LC143824 LC125469, Eastern coastal Taiki, Hokkaido 2 Nishida 2013036, 2013037 (NUM) LC125473 LC143825 LC125470- LC143826- Nishida 2009042, 2013012, LC125472, LC143828, Eastern coastal Tomakomai, Hokkaido 5 2010314, 2013015 (NUM); LC125488, LC143844, Yokoyama s.n. (Yamagata Univ.) LC125504 LC143860 LC125474- LC143830- Eastern coastal Toyokoro, Hokkaido 3 Nishida 2013033–2013035 (NUM) LC125476 LC143832 Eastern coastal Tanesashi, Aomori 5 Nishida 2014085–2014089 (NUM) LC125480- LC143836- Geranium LC125484 LC143840 yesoense Eastern coastal Lake Ogawara, Aomori 1 Nishida 2014090 (NUM) LC125485 LC143841 Franch. et Nishida 2013054–2013058, LC125524- LC143880- Sav. Western coastal Fukaura, Aomori 6 2013062 (NUM) LC125529 LC143885 Nishida 2013042, 2013043, LC125530- LC143886- Western coastal Oga, Akita 10 2013045, 2013047–2013053(NUM) LC125539 LC143895 Nishida 2014057, 2014058, LC125517- LC143873- Mountain Mt. Mahiru, Akita 4 2014061, 2014063 (NUM) LC125520 LC143876 LC125521- LC143877- Mountain Chino, Nagano 3 Nishida 2010006 (NUM) LC125523 LC143879 Cultivated (originally from Mountain Nagano) 1 Nishida s.n. (2010) (NUM) LC125506 LC143862 Nishida 2014051, 2014053-2014056 LC125512- LC143868- Mountain Hakusan, Ishikawa 5 (NUM) LC125516 LC143872 Murase s.n. (2008 Oct. 4) (Lake Mountain Mt. Ibuki, Shiga 1 Biwa Museum) LC125501 LC143857 Murase s.n. (2008 Oct. 13) (Lake Mountain Mt. Ibuki, Shiga 1 Biwa Museum) LC125486 LC143842 G. erianthum DC. Minamifurano, Hokkaido 1 Nishida 2009046 (NUM) LC125493 LC143849 Fujiyoshida, Yamanash 1 Nishida 2009063 (NUM) LC125497 LC143853 Mt. Aso, Kumamoto 1 Nishida 2011012 (NUM) LC125510 LC143866 G. krameri Franch. et Sav. Fujii & Oshita s.n. (2010 9 21) Takamori, Kumamoto 1 (NUM) LC125503 LC143859 Tateshina, Nagano 1 Nishida 2010005 (NUM) LC125505 LC143861 Minamimaki, Nagano Yokoyama s.n. (Yamagata Univ.) LC125499 LC143855 G. onoei f. onoei Mt. Ibuki, Shiga 1 Murase s.n. (2008 Oct. 4) LC125487 LC143843 Franch. et Sav. f. yezoense (H. Hara) Yonek. Sapporo, Hokkaido 1 Nishida 2009041 (NUM) LC125492 LC143847 Murase s.n. (2008 Oct. 9) (Lake G. robertianum L. Mt. Ibuki, Shiga 1 Biwa Museum) LC125502 LC143858 G. shikokianum Matsum. Mt. Tsurugi, Tokushima 1 Nishida s.n. (2009 Sep. 4) (NUM) LC125490 LC143846 Memuro, Hokkaido 1 Nishida 2009051 (NUM) LC125495 LC143851 G. sibiricum L. Minamifurano, Hokkaido 1 Nishida 2009044 (NUM) LC125494 LC143850 G. sobo- var. hakusanense liferum kom. (Matsum.) Kitag. Minamimaki, Nagano 1 Nishida 2009058 (NUM) LC125498 LC143854 var. kiusianum LC125509, LC143865, (Koidz.) H. Hara Mt. Aso, Kumamoto 2 Nishida 2011011 (NUM) LC125511 LC143867 Chitose, Hokkaido 1 Nishida 2009011 (NUM) LC125489 LC143845 G. thunbergii Siebold yoko, Niigata 1 Nishida 2010013 (NUM) LC125508 LC143864 Yamagata, Yamagata 1 Nishida s.n. (2009 Sep. 19) (NUM) LC125491 LC143848 G. tripartitum R. Knuth Fujiyosida, Yamanashi 1 Nishida 2009060 (NUM) LC125496 LC143852 G. wilfordii Maxim. Nagahama, Shiga 1 Nishida 2008060 (NUM) LC125500 LC143856 Cultivated (originally G. yoshinoi Makino from Okayama) 1 Nishida s.n. (2010) (NUM) LC125507 LC143863 Total 72 136 Acta Phytotax. Geobot. Vol. 68

A B E E 60 50 G G C C

F F D D 50 H H B 40 B

A A

40 30

30 Frequency 20 20

10 10

0 0 0.4 0.6 0.8 0.2 0.4 0.6 0.8 ← shallow Incision depth 1 deep → ← shallow Incision depth 2 deep →

C D

50 E 80 E

G G C C 70 F F D D 40 H H B 60 B

A A 50 30 40

30 Frequency 20 20 20

10 10 10

0

← narrow “Angle 2” wide → 0 0 30 40 50 60 70 80 10 20 30 40 50 60 ← narrow Angle 1 wide → ← narrow Angle 2 wide →

Fig. 4. Distributions of (A) incision depth 1; (B) incision depth 2; (C), angle 1; and (D) angle 2. Blue, green, and red bars indi- cate samples from eastern coastal, western coastal, and mountain regions, respectively.

Analysis of sepal pubescence pubescence, although samples from Iturup, To- Percentages of the three pubescence types in makomai, and Tanesashi often had sparse pubes- the localities (Fig. 6) showed some correspon- cence. Interestingly, at Tanesashi, most samples dence to region. Many samples from localities in from plants growing along the seashore had dense the eastern coastal region of Hokkaido had dense pubescence, whereas those growing on slopes October 2017 Wakasugi & al.— Taxonomy of Geranium yesoense 137 6 4 2 ) (

n t Angle 1 .2"] p o n e 2 Incision depth 1 o m c

l p a i n c i r Angle 2 0 P 024 6

LLPCA[, "Comp Incision depth 2 -2 −2

-2 0 2 4 6 −2 P024rincipal component (1) 6

Fig. 5. Principal component analysis results for leaf morphology. Values of samples from eastern coastal, western coastal, and mountain regions are shown as blue circles, greenLLPCA[, triangles, and "Comp red squares,.1"] respectively.

~20 m away from the shore had sparse pubes- petal lobing and leaf morphology, or between pet- cence (Fig. 6, blue box by Tanesashi). Most sam- al lobing and sepals with spreading hairs (Table ples from the western coastal region of Hokkaido 3). and north-western Honshu had sparse pubes- cence, although about a quarter of the samples had dense pubescence. Nearly all samples from Molecular phylogenetic analysis the mountain region of central Honshu had sparse The aligned data matrix of trnL5'-3'-trnF was pubescence, except in the southern part of the re- composed of 933 characters, of which 74 sites gion; about 13% of the samples from Hakusan (7.9%) were variable among all operational taxo- had moderate pubescence, and among the sam- nomic units (OTUs). The aligned data matrix of ples from Mt. Ibuki, about 20% had moderate and the ITS region was composed of 659 characters, about 30% had dense pubescence. of which 117 sites (17.8%) were variable among all OTUs. Petal lobing Because no topological discordance was ob- Plants with lobed petals were found in all served between the trnL5'-3'-trnF and ITS phylo- three regions, although in extremely small num- genetic trees, we used a combined data matrix of bers (Table 3). We found no association between the two regions to construct a molecular phyloge- 138 Acta Phytotax. Geobot. Vol. 68 netic tree. The ML tree obtained is shown in Fig. prevented us from placing the plants from differ- 7. ent regions into clear groups based on their mor- In the resulting tree, samples belonging to the phology. Results from our molecular analysis in- same species usually formed a monophyletic dicated that G. yesoense is a distinct taxon, but clade distinct from the clades of the other species; did not support further subdivision within the only Geranium erianthum, G. soboliferum, and species (Fig. 7). G. yoshinoi did not form a monophyletic clade. In Regional trends in leaf morphology and sepal particular, all of our samples belonging to G. ye- pubescence, even without support from the mo- soense formed a single, relatively well-supported lecular analysis, may be explained in two ways: clade (see the arrow in Fig. 7; bootstrap percent- the character trends may represent ecotypes that age 85%). In addition, within the species, most are not genetically differentiated, or plants with samples were non-divergent. different character trends may have diversified We tentatively categorized leaves of the G. ye- recently and the molecular analysis we used could soense samples first according to their angle 2 not detect this recent diversification. values, because that parameter contributed most With regard to the first explanation, we can- to discrimination of the samples (Figs. 4D and 5), not rule out the existence of ecotypes, because and secondarily according to their sepal pubes- the character traits that we examined have some- cence type. We also checked for petal lobing. No times been interpreted as environmental adapta- clades were recognized within the species, how- tions. The eastern coastal region faces the Pacific ever, that were associated with characteristics of Ocean of northern Japan, which experiences cool leaf morphology, density of spreading hairs on winds from the Okhotsk Sea in summer (Inoue & the sepals, or petal lobing. Three samples from Abe 1998), and in alpine meadows of the moun- Chino did form a poorly supported (62%) clade tain region, winds are usually strong (e.g., Saito within the species, but the morphological charac- et al. 2013). Leaf shape is known to reflect envi- teristics of this clade were not distinct from those ronmental differences (Nicotra et al. 2011), and of other samples of G. yesoense. deeply incised leaves may be an adaptation to strong winds (Vogel 2009). In the eastern coastal region, which often experiences heavy fog in Discussion summer (Inoue & Abe 1998), sepal pubescence may be an adaptation that protects the flowers The results of our morphological and molecu- from moisture, because dense pubescence can lar analyses indicate that it is difficult to recog- prevent moisture on the surface from reaching nize distinct groups within Geranium yesoense. the epidermis (Brewer et al. 1991, Brewer & Leaf incision values were continuously distribut- Smith 1997). The sparse pubescence on sepals of ed (Figs. 4 & 5), different densities of sepal pu- samples from Tanesashi, however, where the bescence with spreading hairs were often seen at plants grow close to the seashore, is not consis- the same locality (Fig. 6), and plants with lobed tent with this explanation. Thus far, there is no petals were very rare and intermingled in popula- plausible explanation for the difference in density tions of plants with entire petals (Table 3). Never- of pubescence between the two populations in theless, we recognized certain trends in leaf mor- Tanesashi. Additional studies, including micro- phology and sepal pubescence: plants from the habitat surveys and transplant experiments, are western coastal region tended to have a wider needed to determine whether these morphologi- central leaf lobe (Fig. 4D), and plants from moun- cal differences might be examples of phenotypic tain regions tended to have sparse spreading hairs plasticity, allowing the plants to adapt to various on the sepals (Fig. 6). In each region, however, a environments. certain number of individuals had characteristics With regard to the second possible explana- differing from the trend for that region, which tion, further, higher resolution molecular phylo- October 2017 Wakasugi & al.— Taxonomy of Geranium yesoense 139 genetic studies, such as a RAD sequence analy- Mag. Tokyo 23: 103 (May 1909) ut ‘pseudopratense’; sis, might be able to distinguish genetic groups Bot in Mag. Tokyo 23: 444 (Oct. 1909) ≡ Geranium miyabei Nakai, Bot. Mag. Tokyo 26: 264 (1912) — within Geranium yesoense. We believe that our Type: Japan. Hokkaido, Hakodate, J. Matsumura s.n., molecular analysis method was likely capable of 15 Aug. 1899 (TI!-lecto-, designated by Ikeda et al. in demonstrating any species-level differences, be- J. Jap. Bot. 90: 283. 2015); Shiribeshi, Zenibako, Y. cause our analyses successfully and clearly sepa- Tokubuchi s.n., 15 Sep. 1889 (TI!-syn-); ibid., sea rated out most of the other Geranium species ana- coast, J. Matsumura s.n., 2 Aug. 1899 (TI!-syn-). lyzed. = Geranium yesoense var. lobatodentatum Takeda in Bot. In conclusion, our results do not persuasively Mag. Tokyo 24: 257 (1910) ≡ Geranium yesoense f. support formal recognition of varieties of G. ye- lobatodentatum (Takeda) Tatew. in Trans. Sapporo soense, because such groups cannot be clearly Nat. Hist. Soc. 14: 263 (1936) — Syntypes: Japan. Hokkaido: Nemuro, near the Hanasaki town, H. distinguished on the basis of either morphologi- Takeda s.n., 7 Aug. 1909 (n.v.); around the Kushiro cal or molecular evidence. With respect to mor- town, H. Takeda s.n., 18 Jul. 1909 (n.v.). phology, we studied only leaf incision and sepal pubescence, so we cannot rule out the possibility = Geranium davuricum DC. f. lobulatum Nakai in Bot. that other characters would enable us to discrimi- Mag. Tokyo 25: 53 (1911) ≡ Geranium yesoense f. lobulatum (Nakai) H. Hara, Enum. Sperm. Jap. 3: 6 nate varieties clearly. However, as Takahashi (1954). — Type [illustration in] Yokusai Iinuma, So- (2014) inferred with regard to the difference be- mokuzusetsu vol. 12, t. 47, f. subnom. Geranium stri- tween var. yesoense and var. nipponicum, alter- atum (1856). native characters proposed in the earlier litera- = Geranium yesoense var. nipponicum Nakai in Bot. ture, such as pubescence on the stems or on the Mag. Tokyo 26: 266 (1912) — Lectotype (designated pedicels, vary among plants in the same popula- here). Japan, Honshu, Ishikawa/Gifu pref., Hakusan, tion. Takahashi (2014) also reported that no other 14 Aug. 1909, J. Nikai 1952 (TI!; isolectotype in TNS, distinct characters have been identified that can photo!). Synt-. Japan, Honshu. Akita/Yamagata pref., Mt. Chokai: collector unknown s.n., 28 Jul. 1887 be used to discriminate the varieties. Therefore, (TI!); G. Nakahara s.n., 6 Aug. 1903 (TI!). Niigata/ we suggest that the named varieties be placed in Yamagata pref., Mt. Iide: U. Faurie 1896, 30 Aug. synonymy under G. yesoense var. yesoense. Fur- 1898 (KYO!); G. Nakahara s.n., 10 Aug. 1904 (TI!). ther studies, such as micromorphological studies, Yamagata Pref., Mt. Gassan: collector unknown s.n., ecological studies of adaptations to different en- 23 Jul. 1887 (TI!); U. Faurie 553, 28 Apr. 1897 (KYO!); G. Nakahara s.n., 10 Aug. 1903 (TI!). Ya- vironments, and molecular studies using differ- magata: U. Faurie 4373, Jul. 1889 (2 sheets in P, pho- ent genes or different methodologies, are needed tos!, 2 sheets in KYO!). Fukushima Pref., Yumoto: to determine if additional infraspecific taxa Herb. N. Ichikawa s.n., 16 Aug. 1887 (TI!). Tochigi should be recognized. Pref., Nikko: TNS 12912?, Sep. 1874 (TNS, photo!); collector unknown s.n., 2 Aug. 1878 (TI!). Tochigi Pref., Akanuma: TSU s.n., Aug. 1883 (herbarium un- known, n.v.). Gunma Pref., Mt. Akagi: B. Hayata s.n., Taxonomic treatment 25 Jul. 1903 (TI!). Gunma/Nagano pref., Mt. Asama: C. Owatari s.n., 22 Aug. 1894 (TI?, n.v.); U. Faurie Geranium yesoense Franch. et Sav. 549, 20 Jul. 1897 (herbarium unknown, n.v.); R. Ya- tabe s.n., in 1880 (TI!). Nagano Pref., Komagatake: Geranium yesoense Franch. et Sav., Enum. Pl. Jap. 2: 305 TSU 7558, 25 Jul. 1875 (TNS, photo!); R. Yatabe s.n., (1878) — Type: Japan. Hokkaido, Hakodate, P. A. L. 3 Aug. 1880 (TI!); U. Faurie 6995, Sep. 1905 (KYO!). Savatier 2446, date unknown (P-holo-, photo!). Photo Nagano Pref., Wadatoge: collector unknown s.n., Jul. of type is shown at〈http://coldb.mnhn.fr/catalog- 1875 (herbarium unknown, n.v.). Nagano/Yamanashi number/mnhn/p/p00757979.〉 pref., Yatsugatake: Y. Yabe s.n., 21 Aug. 1902 (TI!). var. yesoense ≡ Geranium yesoense var. genuina Tatew. Nagano/Toyama pref., Mt. Shirouma: Y. Yabe s.n., 26 in Trans. Sapporo Nat. Hist. Soc. 14: 263 (1936), nom. Jul. 1903 (TI!); T. Uchiyama s.n., Aug. 1905 (TI!). Na- invalid. gano/Gifu pref., Mt. Norikura, 2500 m: U. Faurie 6995, 28 Aug. 1905 (P, photo!, 2 sheets in KYO!). Na- = Geranium yesoense var. pseudopalustre Nakai in Bot. gano/Gifu pref., Mt. Ontake: TSU s.n., 1 Aug. 1875 140 Acta Phytotax. Geobot. Vol. 68

Kunashiri

Koshimizu Other western Iturup Other eastern coastal locali�es Shiraoi coastal locali�es Tomakomai Nemuro

Hakodate Akkeshi Kushiro Kazamaura Shiranuka Onbetsu Fukaura Hidaka Taiki

Oga Toyokoro

Mt. Chokai Mt. Naeba Tanesashi Mt. Hakusan Mt. Mahiru

On slopes Along Mt. Ibuki seashore Mt. Yatsugatake

Utsukushigahara Other montain locali�es

Sparse Dense

N = 3 – 20 N = 21 – 40 N = 41 – 60 N = 61 – 80 Modarate N > 80

Fig. 6. Percentages of samples with dense (black), moderate (gray), and sparse (white) sepal pubescence with spreading hairs at each locality examined. Size of circle reflects total number of samples from that locality. Blue, green, and red lines in- dicate samples from eastern coastal, western coastal, and mountain regions, respectively. Results for samples from lo- calities with two or fewer specimens are summarized by region.

Table 3. Results of the field surveys for G. yesoense with lobed petals.

Number of Measurements of leaf morphology* Sepal pubes- Locality Regions N plants with Incision Incision cence with Vouchers Angle 1 Angle 2 lobed petals depth 1 depth 2 spreading hairs Akkeshi, Eastern 66 2 0.68 0.46 42.0 23.0 Dense Nishida 2013028 Hokkaido coastal Shiranuka, Eastern 72 0 − − − − − − Hokkaido coastal Onbetsu, Eastern 40 1 0.63 0.46 60.0 19.0 Dense Nishida 2013029 Hokkaido coastal Toyokoro, Eastern 74 <5 0.63 0.48 55.9 18.5 Dense Nishida 2013035, 2013037 Hokkaido coastal Kasose, Western 10 0 − − − − − − Aomori coastal Oga, Akita Mountain 15 2 0.54 0.37 52.6 44.7 Sparse Nishida 2013045, 2013050 Mt. Mahiru, Mountain 21 0 − − − − − − Akita Hakusan, Mountain 50 2 0.57 0.35 40.4 19.8 Sparse Nishida et al. 2014051 Ishikawa *Average of the voucher specimen values. October 2017 Wakasugi & al.— Taxonomy of Geranium yesoense 141

Leaf incision Sepal pubescence

(Koshimizu ) Deep Dense (Onbetsu) Deep Dense (Shiranuka ) Deep Sparse (Hamanaka*) Deep Dense (Toyokoro 1*) Deep Dense (Toyokoro 2) Deep Sparse the east coast region (Toyokoro 3) Deep Dense ( Taiki 1*) Deep Dense ( Taiki 2) Deep Dense (Tomakomai 1) Deep Dense ( Tomakomai 2) Deep Dense ( Tomakomai 3) Deep Dense (Tomakomai 4) Deep Sparse (Tomakomai 5) Deep Sparse (Tanesashi 1) Deep Sparse (Tanesashi 2) Deep Sparse (Tanesashi 3) Deep Dense (Tanesashi 4) Deep Dense (Tanesashi 5) Deep Dense (L. Ogawara) Deep Sparse ( Fukaura 1) Deep Dense G. yesoense ( Fukaura 2) Shallow Sparse ( Fukaura 3) Shallow Sparse the west coast region 85 ( Fukaura 4) Shallow Sparse ( Fukaura 5) Shallow Sparse ( Fukaura 6) Sha llow Sparse (Oga 1) Shallow Dense (Oga 2) Shallow S parse (Oga 3) Shallow S parse (Oga 4*) Shallow S parse (Oga 5) Shallow S parse (Oga 6) Shallow S parse (Oga 7) Shallow S parse (Oga 8*) Shallow S parse (O ga 9) Shallow Sparse (O ga 10) 75 Shallow Sparse (Nagano) Deep S parse (Mt. Mahiru1) Deep S pars e ( Mt. Mahiru2) Deep S parse mountain region the (Mt. Mahiru3) Deep S parse ( Deep Mt. Mahiru4) Sp arse (Mt. Hakusan 1*) Deep S parse (Mt. Hakusan 2) Deep S parse (Mt. Hakusan 3) Deep S parse 50 (Mt. Hakusan 4) Deep S parse (Mt. Hakusan 5) Deep S parse (Mt. Ibuki 1) Deep Dense (Mt. Ibuki 2*) Deep Dense ( Chino 1) Deep S parse 62 ( Chino 2) Deep S parse 71 ( Chino 3) D eep S parse G. shikokianum (Tokushima) G. soboliferum (Nagano) G. soboliferum var. kiusianum (Kumamoto 1) G. soboliferum var. kiusianum (Kumamoto 2) G. yoshinoi (Okayama) G. kramei (Yamanashi) 100 G. kramei (Nagano) G. kramei (Kumamoto 1) G. kramei (Kumamoto 2) G. onoei (Nagano) 100 G. onoei (Shiga) G. onoeir f. yezoense (Hokkaido) G. erianthum (Hokkaido) 100 G. sibiricum (Hokkaido, Minamifurano) G. sibiricum (Hokkaido, Memuro)

71 G. wilfordii (Shiga) 74 G. tripartium (Yamanashi) 47 G. thunbergii (Niigata) 96 G. thunbergii (Hokkaido) 89 G. thunbergii (Yamagata) G. robertianum (Shiga)

0.01

Fig. 7. Maximum likelihood tree obtained by combining the trn L5’-3’-trnF and ITS data for Geranium yesoense and other species of Geranium in Japan. Numbers on branches indicate bootstrap percentages (>40%). Lobes of leaves of samples of G. yesoense with angle 2 ≤ 20° and ≥28° were tentatively categorized as deep and shallow, respectively. Spreading hairs of sepals were tentatively categorized as dense or sparse, as described in text. Asterisks indicate samples with lobed flow- er petals. 142 Acta Phytotax. Geobot. Vol. 68

(TNS, photo!). Ishikawa/Gifu pref., Hakusan: collec- also thank colleagues and fellow students of Y. Wakasugi tor unknown s.n., 8 Aug. 1881 (TI!); TNS s.n., Aug. at the NUM herbarium and the Laboratory of Geobiology 1901 (TNS?); J. Nikai 1952, 14 Aug. 1909 (TNS, pho- at Nagoya University for their invaluable advice and en- to!). Shiga Pref., Mt. Ibuki: U. Faurie 1892, 16 Jul. couragement during her master's course, and Natsuko Yo- 1898 (herbarium unknown, n.v.); J. Nikai 1953 & shino for cultivating the sampled plants. Y. Wakasugi is 1954, 22 Aug. 1909 (TI!); R. Yatabe s.n., 1 Aug. 1881 especially grateful to Keiko Ohnishi for constructive (TI!). comments and warm support during her master's course, and S. Nishida is especially grateful to Hidetoshi Naga- = Geranium yesoense f. albiflorum Tatew. in Trans. Sap- masu for critical comments on the taxonomic treatment. poro Nat. Hist. Soc. 14: 264 (1936). — Type: S. Ku- Direct sequencing was conducted at the Nagoya Univer- rile Isl., Kunashiri, Tomari, M. Tatewaki s.n., 20 Aug. sity Center for Gene Research. This study was partly sup- 1936 (SAP-holo-, photo!). ported by grants from KAKENHI (nos. 22570088 and 26440211) to S. Nishida from the Japan Society for the = Geranium yesoense f. leucanthum Tatew. in Trans. Sap- Promotion of Science poro Nat. Hist. Soc. 14 (1936): 264. — Type: S. Ku- rile Isl., Kunashiri, Tomari, M. Tatewaki s.n., 21 Aug. 1936 (SAP-holo-, photo!). = Geranium yesoense f. intermedium H. Hara in J. Jap. References Bot. 22: 168 (1948).— Type: Japan, Akita Pref., Oga Peninsula, Toga, K. Watanabe 13, 2 Aug. 1938 (TI!- Aedo, C. 2008. RJB Geranium. [accessed 29 Oct., = Geranium yesoense f. ochroleucum Okuyama in J. Jap. 2014] Bot. 30: 43 (1955). — Geranium yesoense f. leucan- Aedo, C., J. J. Aldasoro & C. Navarro. 2002. Revision of thum Mizushima, Sci. Res. Ozegahara Moor 445 Geranium sections Azorelloida, Neoandina, and (1954). nom. illeg., non Tatew. (1936).—Type: Fuku- Paramensia (Geraniaceae). Blumea 47: 205–297. shima Pref., Oze, Mt. Hiuchi (TI?, n.v.). Aedo, C., F. P. de la Hoz & F. M. Garmendia. 1998. World checklist of Geranium L. (Geraniaceae). Anales Jard. Bot. Madrid 56: 211–232. Distribution. Hokkaido and Honshu, south to Akiyama, S. 2001. Geraniaceae. In: Iwatsuki K., T. Shiga Prefecture (Mt. Ibuki). Habitat: mainly Yamazaki, D. E. Boufford & H. Ohba (eds.) Flora of grasslands near the coasts and in alpine meadows Japan. Angiospermae, Dicotyledoneae, Archichla- above 750 m. Japanese name: Ezo-furo. mydeae (b) vol. IIb, pp. 287–293. Kodansha, Tokyo. Notes. Geranium hidaense Makino was once Brewer, C. A. & W. K. Smith. 1997. Patterns of leaf sur- face wetness for montane and subalpine plants. Pl. treated as G. yesoense var. hidaense (Makino) H. Cell Environ. 20: 1–11. Hara. However, the type specimen of G. hidaense Brewer, C. A., W. K. Smith & T. C. Vogelmann. 1991. appear to be G. yoshinoi rather than G. yesoense, Functional interaction between leaf trichome and the as Takahashi (2014) pointed out. We therefore ex- optical properties of water droplets. Pl. Cell Environ. cluded G. hidaense from our taxonomic treat- 14: 955–962. Edgar, R. C. 2004. MUSCLE: multiple sequence align- ment. Further studies are needed to determine the ment with high accuracy and high throughput. Nucl. status of G. hidaense. Acids Res. 32: 1792–1797. Fiz, O., P. Vargas, M. Alarcón, C. Aedo, J. L. García & J. J. Aldasoro. 2008. Phylogeny and historical biogeog- We are deeply grateful to the curators and staff of the her- raphy of Geraniaceae in relation to climate changes baria KYO, SAP, TI, TNS, and TUS for making their and pollination ecology. Syst. Bot. 33: 326–342. specimens available. For their help in collecting samples, Ikeda, H., A. Shimizu & C. Aedo. 2015. Nomenclature we thank Hiroshi Igarashi (Hokkaido), Ryu Sato and Yu- and typification of Geranium yesoense var. pseudo- jiro Horii (Mt. Mahiru), Ichiji Ando (Aomori), Yuzuru palustre (Geraniaceae). J. Jap. Bot. 90: 281–284. Nishimura (Nagano and Yamanashi), Tatsuya Nogami Inoue, K. & H. Abe. 1998. Remote sensing of height of a (Hakusan), Makoto Ogawa (Tsurugi-san), and Naomi fog layer and temperature of fog droplets using infra- Kibe (Mt. Aso). Noriyuki Fujii, Tadayoshi Murase, Sa- red thermometer and meteorological satellite. J. Ag- toshi Tsuda, and Jun Yokoyama kindly offered us samples ric. Meteorol. 54: 55–61. for the molecular analyses, and Atsuishi Ebihara, Hiroshi Nicotra, A. B., A. Leigh, C. K. Boyce, C. S. Jones, K. J. Ikeda, and Hideki Takahashi sent us photographs of type Niklas, D. L. Royer & H. Tsukaya. 2011. The evolu- specimens and copies of the original descriptions. We tion and functional significance of leaf shape in the October 2017 Wakasugi & al.— Taxonomy of Geranium yesoense 143

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Received March 18, 2016; accepted May 25, 2017

Appendix 1. Herbarium specimens of G. yesoense ex- Komagatake; Shinano); Z. Tashiro s.n. (4 July 1926); amined for leaf morphology. Collector numbers are M. Wakabayashi et al. 54; R. Yatabe s.n. (20 July listed for KYO, NUM, and P; herbarium numbers are 1880); s.n. (date unknown; from Arashimadake; listed for SAP, TNS, and TUS. Echizen-Ohno); collector unknown s.n. (date un- known; from Mt. Ibuki; Shiga). KYO: D. E. Boufford et al. 19914; K. Deguchi & T. Taka- NUM: S. Nishida 2009039, 2009040, 2009042, 2009077, hashi 6721; K. Deguchi et al. 8174; U. Faurie 172; N. 2010003, 2010004. Fukuoka & Y. Inamasu 603; M. Furuse 54035; M. P: Savatier 2446. Gunba & R. Yoshii s.n. (7 July 1933); M. Hirano s.n. SAPS: 042252, 042253, 042254, 011890, 017262, 017264, (21 July 1954); Y. Hori s.n. (19 Aug. 1951); Y. Horii 040894, 040895, 040903, 040908, 040914, 040918, 1934; M. Ito & H. Nagamasu 3115; K. Iwatsuki 5871; T. 040919, 040921, 040922, 040923, 040924, 040928, Kawasaki s.n. (Aug. 1925); S. Kitamura s.n. (17 July 040930, 040935, 040937, 040939, 040940, 040943, 1963); S. Kitamura s.n. (22 July 1970); G. Koidzumi 040945, 040946, 040948, 040949, 040951, 040952, s.n. (12 Aug. 1921); H. Koyama 5624; T. Makino 040956, 040958, 040960, 040961, 040962, 040968, 70904, 70905, 70906, 70918; E. Miki & T. Yahara 23; 040971, 040974, 040975, 040976, 040978, 040979, G. Murata & T. Shimizu 1966, 2086, 2165; G. Murata 040984, 040986, 040987, 040992, 040994, 040998, 27577, 5926, 6959, 9802, 9804, 70905, 70917; J. Mu- 041000, 041247, 041250, 042261, 042263, 042265, rata & H. Ohba 5341; G. Nakai 3367, 3619; N. Naru- 042266, 042268, 042273, 042274, 042275, 042277, hashi M. Wakabayashi 73; S. Nikai s.n. (22 Aug. 042278, 042279, 042281, 042286, 042293, 042299, 1909); H. Nishimura 834; R. Nishimura 682; S. Oka- 042300, 042301, 042304, 042305. moto s.n. (2 July 1950); M. Shimizu 1126; T. Shimizu TNS: 7560, 14687, 16396, 24322, 29152, 29496, 37164, 85-733; S. Shimo & S. Kira 273; M. Tagawa 1169; H. 47745, 55511, 55514, 55515, 58338, 73110, 79298, Takahashi 3926; D. Tamura s.n. (date unknown; from 80588, 80590, 80591, 80592, 94043, 94046, 94051, 144 Acta Phytotax. Geobot. Vol. 68

103103, 108805, 109325, 147161, 180443, 216078, bayashi 73; S. Nikai s.n. (22 Aug. 1909); H. Nishimura 247787, 249212, 258391, 270035, 272044, 275078, 834; R. Nishimura 682; S. Okamoto s.n. (2 July 1950); 278892, 297528, 304173, 307145, 323486, 339906, M. Shimizu 1126; T. Shimizu 85-733; S. Shimo & S. 339946, 339949, 390485, 405434, 410166, 410167, Kira 273; M. Tagawa 1169; Z. Tashiro s.n. (4 July 410824, 425967, 428318, 502405, 502408, 627910, 1926); M. Wakabayashi et al. 54; R. Yatabe s.n. (20 627911, 662040, 662618, 665444, 702558, 781638, July 1880); s.n. (date unknown, from Arashimadake, 796223, 796224, 796231, 822397, 841011, 872255, Echizen-Ohno); collector unknown s.n. (date un- 872261, 872262, 872263, 872264, 872268, 872270, known, from Mt. Ibuki, Shiga). 872271, 910161, 910181, 910189, 910219, 910243, NUM: Nishida 2009039, 2009040, 2009042, 2009077, 910244, 976408, 976413, 976416, 976417, 988068, 2010003, 2010004. 988069, 988075, 988076, 991409, 01021694, 01056998, SAP: SAPS 017262, 017264, 040894, 040895, 040903, 01070510, 01070531, 01070541, 01070550, 01070564, 040904, 040911, 040914, 040918, 040919, 040921, 9518270. 040922, 040923, 040924, 040930, 040935, 040937, TUS: 15501, 16999, 109290, 115572, 122616, 126512, 040939, 040940, 040943, 040945, 040946, 040948, 126715, 137502, 154651, 154653, 154704, 154710, 040949, 040951, 040952, 040956, 040958, 040960, 164444, 180996, 196036, 200939, 205224, 211404, 040961, 040962, 040968, 040971, 040974, 040975, 22889, 22901, 22915, 22918, 22923, 245613, 254459, 040976, 040978, 040979, 040984, 040986, 040987, 272031, 290259, 303563, 307084, 312729, 321973, 040992, 040994, 040998, 041000, 041247, 042252, 338209, 375897, 40316, 54562, 57434, 66684, 67571, 042253, 042254, 042261, 042263, 042265, 042266, 71766, 71768, 84140, 89265, 99833, TUSG 17001, 042268, 042272, 042273, 042274, 042275, 042277, TUSG 17010. 042278, 042279, 042281, 042286, 042290, 042293, 042297, 042298, 042299, 042300, 042301, 042304, 042305.

Appendix 2. Herbarium specimens of G. yesoense exam- TNS: 14687, 16396, 24322, 29152, 29496, 47745, 55511, ined for pubescence on sepals. Collector numbers are 55514, 73110, 79298, 80588, 80590, 80591, 94043, listed for KYO and NUM, herbarium numbers are 94046, 103103, 109325, 147161, 180443, 216078, listed for SAP, TNS, and TUS. 247787, 249212, 258391, 270035, 275078, 278892, 304173, 323486, 339906, 339949, 405434, 410166, KYO: D. E. Boufford et al. 19914; K. Deguchi & T. Taka- 410167, 410824, 428318, 502405, 502408, 662040, hashi 6721; K. Deguchi et al. 8174; U. Faurie 172; N. 662618, 665444, 702558, 781638, 796223, 796224, Fukuoka & Y. Inamasu 603; M. Furuse 54035; M. 841011, 872261, 872263, 872264, 872270, 872271, Gunba & R. Yoshii s.n. (7 July 1933); M. Hirano s.n. 910181, 910189, 910219, 910243, 910244, 976408, (21 July 1954); Y. Hori s.n. (19 Aug. 1951); Y. Horii 976413, 976416, 976417, 988068, 988069, 988075, 1934; M. Ito & H. Nagamasu 3115; K. Iwatsuki 5871; T. 988076, 991409, 01056998, 01070510, 01070531, Kawasaki s.n. (Aug. 1925); S. Kitamura s.n. (17 July 01070564. 1963); S. Kitamura s.n. (22 July 1970); G. Koidzumi TUS: 15501, 16999, 22889, 22901, 22915, 22918, 22923, s.n. (12 Aug. 1921); H. Koyama 5624; T. Makino 40316, 54562, 57434, 66684, 67571, 71766, 71768, 70904, 70905, 70906, 70918; E. Miki & T. Yahara 23; 84140, 89265, 99833, 109290, 122616, 126512, 126715, G. Murata & T. Shimizu 1966; G. Murata & T. Shimizu 137502, 154651, 154704, 154710, 180996, 196036, 2086; G. Murata & T. Shimizu 2165; G. Murata 5926, 200939, 205224, 211404, 245613, 254459, 272031, 6959, 9802, 9804, 70905, 70917; J. Murata & H. Ohba 290259, 303563, 307084, 312729, 321973, 338209, 5341; G. Nakai 3367, 3619; N. Naruhashi M. Waka- 375897, TUSG 17001, TUSG 17010.