Arisaema inaense and A. nagiense, Two Diploid Species of the A. ovale Group (Araceae)

2008·1.3 MB·English

by  Kobayashi, Tomiki

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ISSN1346-7565 ActaPhytotaxG.eobot,59(1):3743(2008)

Arisaemainaense A, Two Diploid Species
and nagiense,

of the A. ovate Group (Araceae)
TOMIKI KOBAYASHIi,KAZUYUKI SASAMURA2, KUNIAKI WATANABE3 akd
JIN MURATA2
iZije Societyfor Flora ofIlyq 5g83vL,3a Ookuiacinntshimizu, Ahashi 673-0865, .klpan ;?Botanical Gareiens,
'71ie
Gvadttat eScheot ofScien ce, (J}ziver ,s oifi'j'7bi g3r,7o-,1 Hbkusan, Bunk,i'o-ku,
7bdyo 112-OOOI, Jlu)a nSD;epartment oj'Bio lGavgad)uia,t Sechoo lofSlrienee,
Kbbe U}iivensdyI,mlRokkeuclai?.Vlido-kKtb{b,e 657L850I,krpan

Based on morphology and chromosome nuinbers, AFisaema inaense (Seri Kz,. S)asamura et J .Murata
is newly recognized at the rank ef species and a nersnr species A. ncrgiense 1[ Kobayashi ,K, Sasamura et
J .Murata is describe dB,oth are diploi dwith 2n = 26 and lack the accessory buds that always accom-
pany the axillary buds oftetraploid plant osfA. ovate Nakai .In thc A. ovale group ,A. ncrgi'ense is uniquc
in the infierescen ucfeifblding befbr ethe leafblade.
Key words: Arisaema ovale group ,A. inaense A,. nagiense, chromosome, new spccie$
When Murata (1986 )revised Arisaema inaense. Murata (1993 a)greed with Serizawa's
amunense Maxim. and allied taxa, A, ovate was (1988 o)pinion, but did not change the taxonomic
recognized as a distin csptecies ¢haracteriz ebdy status of var. inaense.
haying axillary buds accompanied by accessery In 20e6 the firs atuthor (Kobayas ohbsier)ved
buds ,the spathe mbe with raised longitudi nstarlipes unusual plant son Nagi-sa nin Okayama Prefecture,
and a chromosome number with multiples of l3 Japan ,whjch were similar to but appeared distinct
(2 n= 26, 39, 52) ,Arisaema ovale, in the sense of from Arisaema ovale. The plant swere included in
Murata (i986 )in,¢luded two varieties, sadoense an extensive study ofthe A, ovale group (equivalent
(Naka DJ .Murata and inaense (Seri zJ., )Murata. to A, oyale in the sense ef Murata (1986 )wh)ic,h
Bascd on it smorphological distinctive nSeesrsi,zawa was revealed te be monophyletic in the ongo{ng
( l988) proposed to raise var. inaense to the rEmk of molecular phylogefie tsitucdy ofArisaema (Ohi-
species, bnt his nomenclatural proposa wlas invalid, Toma et al, unpublished). As a result ofthose stud-
Murata (i99 ere)portedA. ovale (va sxadoense) ies we recogriize two additional taxa of the A, ovale
to be a pentaploi (d2 n= 6S) from Hokkaido andA. group as distinc tspecies.
ovale var, inaense a diploi (d2n =: 26, data shown in Measurements ofmorphological characters
Murata et al, 2006) ,and that accessory buds char- were taken from specimens in the herbari oaf AICH,
acteristic of tetraploid plant sofA. ovale were not TI, and TNS, and from livin gindividll ailn sthe
fbund in diploi pdlant sofeither va: sadoense er var. fiel dRo,ot tips remeved from livin gplants were
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38 Acta Phytotax .Geobot. Nbl, 59
used fbr observing the somatic chromosomes. Root Distributio nJ.apan: Honshu (Nagan aned Gifu
tips were pretreat ewidth cold water at OO C fbr 24 Prefs,),
hours and fixe din 3:1 ethanol-acetic acid for 3 Other ,!pecimen esx'amined, JAIIAN .Nagano Pref:
hours at 40 C. Then they were rnacerated in 1N HCI between Shirabidair aand Kitagosho-dan iDeai, Mt,
fbr 1O minutes at 600C, stained with Schifi ]soslu- Kisokemagatake, Komagane-shi ,alt, ca. 1600 m, 8 Jun.
tion and squashed. 1979, S. Serizawa 29714, 29716 (A[CH) K;isomidai,
Kisokoma-kogen, Kisofukushirna-machi, alt. 1500-1600
Arisaema inaense(SerizS.e)riz.[inGifu-ken m, 27 Jun. 1986, S. Serizaw a4416J (AICH) K;isomidai,

Shokubutsu Kenkyu Kaishi 5: 7 (l988 c)om,h. nud,] KSiesrofiuzkausw4hai5m7a3-1m-a4ch5i7,38 a(ltA IcaC, H1)5A5;z0u mm,i- g3u1 nM,ayNa k1a9b8u7s,a S,.

ex K. Sasamura & J. Murata, stat. nov (Fi g1.A-C) Jun. 1992, ,1 vatrat as,n. (TI) ,-Gifu Pref. :Oshiklji
Bastonym: Arisaema amui?nse Maxim. var. inaense Nationa lForest N,iugawa-mura, alt. ca. 1500 m, 6 Jun.
Seriz i.n Acta Phytotax G.eobot. 32: 25, t 2 (1981). 1986, S, Seri.7.a w4a4023-a ,44023-b ,44024 (AICH);
unArisaema ovale Nakai var, inaens e(Seri zJ.,) Sengendaru National Forest ,Hiwada-kogen, Takane-
M6u6 r(a1ta9 i8n 6 JA) .rF;oaicd, eSacnia .U 1n3i:v 3 7[,I b'kf yi8o (se1ct.9 93,0 B)ro.t [,[ Y1p4e:: m4u4ra0,63 a l(t.A 1I5C2H0-)1,580 m, 7 Jun .1986, S. Serizaw a44052r
JAIIAN, Near Shirabi-daira ,E. foot ef Mt. Kiso-
Komagatake ,Komagane-shi a,l tc,a, 1600 m, June 8, As suggested by Serizawa (1988 A)r,isaema
1979, S. Serizawa 297J5 (hol oA-ICH). inaense (Fi g1,D) is distin cftromA, ovale in having
Paradieecio huesibs ,25-50 cm ta11 .71ibe rdeprcssed a purplis hspathe with clear white longitudinal
globose, 1.5- 5cm wide; phyllotax isspirodistic- stripes, a narrowly auriculate mouth, pcntagonal
hous; tuberlet onc in each leaf axil, Leof 1, pseu- ovate blad eand thic ksubcapitate spadix appendagc.
dostem 1O-25 cm long ,mouth narrowly expanded Arisaema i.naens eis scattered in the upper fugus
collar-like; petiol neearly as long as pseudostem; ione in Nagano and Gifu Prefecture sin central
beelnlltiaipdrteie c, d,g irbgeaiestnea ;cttueen erloamrtyej ,npae l dalpaeetxaefl l ayec 5tuu-msifunaballtleyi,o lpa et6te -i;l2oe5lau flcmlateet,sH(tohten ensathtuurre aa pnofdl tbh oeuoict cdiaaxt s)iili,los adnraiytsl btyuid n gscf r(trotowmus tb hweei trlh alt teAht.at et adslorsvo)oa Zn eoitn
buds.
long ,1 .5" 10 cm wide, Iizfioresc eunnfcoelding after aecempany accessory
leafblade ;peduncl emuch shorter than pseudostem
dustybrownish Arisaema nagiense T. Kobayashi, K. Sasamura &
and petiole ;spathe purple, with
white veins; tube 4.5-5, 5cm long ,cylindrica] ,grad- J. Murata ,sp. nov. (Fi gI.D-E)
ually opening to narrowly auriculate mouth, longi- Simile Arisaemat iovati sed gemmis solitariis ,pedun-
tudinal white veins distinct rlaiysed outside; blade culis longioribu ssp,athae limbo atropurpureo angustiore
differt,
curved forward obovate, apex acuminate, 8-9 cm
long, 3,5-4.5 cm wide, S2)a duniisxexual; appendage Mt . NaZbiepgau tsaJ,AnRigyXaNm. aHa,ylto .g1o2 0P0r'e 1f,2 5S0i ms,o C MiatyM C2h3i, g2u00s7a,c hT,o,
pale green ,thickly cylindrical, upright, 3.5m4. 5cm Kobayashi 42827(holoTI-,Fig2).

long ,7-9 mm wide, basall tyruncate and stipitate,
apex weakly capitate. Staminate,flow eorfs 2 or 3 Paradioec{o huesrbs ,10-40 cm ta11 T.itbe rdepressed
fused stamens, anther cells globose, dehiscin gby globose, 1-3 cm wide; phyllotax sipsirodistichous;
short slits to pores .Ovarie scongestcd, green ,bottle-tuberlet one per leaf axil. Leqf 1, seldem 2, pseu-
shaped. dostem usually purplish ,6r28 cm long ,mouth nar-
jLipanese naFne. Ina-hireha-ten'nansho, rowly expanding, collar-like; petiol e4' 15 cm long;
Chromosome number, 2n = 26 (Murat eat al. blade digitate lory pedately 5-foliolate ;leafiets
2006). entire, green ;terrninal leafle ptetiolu)a tnaer,rowly
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F
Fia.1. Habit and undergreund stems of Arisaema ovale group, A-B: Arisaema nagiense ftom viclnity of
Nabegatmiyama, Hyogo Pref C: Tlibe orfA, nagiense fron iNagisan ,Okayarna Pref D-E: Arisaeni ainaense
fror nAriake-eho ,Nagaiio Pre£ F: Iletraplo iinddivid uoafArlisaema vvate ftom Nagisan ,Olcayatn aPrefi
(K Sdsamuni et al. 529, TI) .Axillar ybuds ofdiploid species (C ,E) and diploi dp]ant sofA. ovale are soli-
tary while they are always accompanicd by accessory buds (F) in polyploi dplants.
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40 Acta Phytbtax.Geobot. NQ)1 5,9
.t
nerbetuUtiIeersitatle

t"t t.stes.ns'.
Tekvoe-sig

PLANTS O}: jAPAN
HerbariumIjnti tvtetr stti tttattlit s'trtohtX:ee:ilptsst
pt t}'U/:f.f)e)...ve Araa,f.3S2)
sua ,nd2Fen"-X4K7.k. ,lris"otx/asv.
K . S ; s " - " ･ sX v/ h t . tBlet.L pgmr9 nMV･lZ.-,,,,.}xee i . oo, H.vog: oig v( al 'pre, .e. c,S nits o- y Cgivt am yr Te 'ei ei-n spystc ･hot ihjM'tt. sN;st h･v"ag ]a-ta "v/a yeaemo]
3if']n'N ,,3g'24'E nLt,?200-12･Setn
Petiia Habtt"t nioe//･tthi,t･ ridge :t /l/e Hvogo'Ok-yamti bvree[

MatemmLtegzi.td is.. pm7 Du/e 20e7.5.Z3

Co!1.'l'oJn:'Kkull,m)ush[C'1.#diM) liO. 4!8L'T
FJG.2. Holetype ofAmsaema naglense(TI).
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elliptic to elltptic, base cuneate, apex acuminate, 4-
13. 5cm long ,O.7-7 cm wide. fi/LfloFes cuenfnbcled-
ingbeforeleafblade; than
peduncle much shorter
pseudostem and petiol e1,,5-1 1¢m long ;spathe
tube 2.2-4.5 cm long, pale greenis hpurpIe ,with
longitudi nraalised white stripes, cylindricai, slight-
ly reflexed and expanded at mouth to base of blade;
blade curved fbrwar dto declinin ogu,tside greenish,
insid etotall ydark purple ,narrowly triangular to
narrowly triangular ovate, apex long acuminate,
3.5-7 cm long ,i,3-3. c0m wide, EPadi uxnisexual;
dark
appendage purplish ,ye]lowish apicallM cylin-
drica] ,upright, <1-)2r m5m wide, slightly exceed- FiG. 3. Somatic chremosemes ofArisaema nqgiense (2n == 26).
ing spathe tube, basall ytruncate and stipitate. Scale bar indicatc 5s um
Staminat efiowers of 2 or 3 fused stamcns, anther
cells globose, dehiscin gby short slits to pores. and A. nagiense, they are significantly differen tin
Ovaries congested green, bottle-shaped, the pedunciefpeti olieengt hratio, widthllefi gratthio
lapanesename. Nagi-hiroha-teR'nansho ofthe spathe blade and widrhllength ratie ef the ter-
Chromosome number, 2n x' 26. minal leafi citn both pistill aantde staminate indi-
Distributio n,Japan: Honshu (Hyog eand viduals, respectively ('fab l1)e ,In pjstill aitnedi-
Okayama Prefs), viduals the differen cien the blade!tu bleengt hratio
Other specime enxasmined. JA}}AN. Hyogo Pref.: ofspathe is also significarr tI.n the A. ovale group A.
Siso CitM Chigusa-cho a,round Mt. Nabegataniyama a,lt. nagiense is unique in the inflorescen ucnefolding
I200- l350 m, 23 May 2007, r Kbbayashi 428Iq 4282a befbre the leafblad e(Fi gi,B).
42826 (TI)-,'Okayama Pref: Katsuta-gun,Nagi-cho,

Mt, Nagisan, alt, 900-llOO m, l9 May 2007, Z We thank D: Hiroshi lkeda ofthe Universit Myuseum,
1<bbayash i42814 (TI )K;atsuta-gun ,Nagi-cho, Mt. The Universi tofy Tbkyo (forme orfl Oykayama University
Nagisan, alt ,UOO m, 25 May 20a7, KL SIzs"mtt r5a3I. ofScience> tbr suggesting the study ofAri,saema nagien-
536(TI), se, This study was suppotted by a Grant-in-A ifdor
SclentrncResearch from the JapanSoeietyforthe
Arisaema nagiense is diploi dwith 2n ": 26 Promotion of Scienc e<no I,737 0032) to J ,Mura ta,
chromosomes (Fi g3.). !t has a narrow distribution
range on mountains near the berder ofHyogo and References
Okayama PrefectureAsr.isaema is dis-
ovale also
tributed in this area but usually occurs at lower ele- Murata ,J ,] 986. A revision ofArisaema amurense group
r[bkye.
vations, In that area, A. ovale is tetraploi dand <Aracea Ie. )F.ac. Sci .Univ. Sect .3, Bot.
always has a green spathe and axillary buds accom- 14(1) :49-68.
panied by accessory buds (Fi gI.F). Arisaema Murata, J. 1990 .New or neteworthy chromosome recerds
bladedark inside in Arisaema (Arace a(e2) )J. .jap. Bet. 65: 1n8,
n(rgiense, with a spathe purple Murata, J, 1993, Differentiati oannd taxonomy of
buds(FigI.E)is dis-
and solitary axillary readily Arisaema ovale Nakai and ailies, Bul1 .Bot, Soc.
tinguishe dfrom A, ovaie. In considering the total Yamanashi 6: 2-8. (i Jnapanese)
range of variation ofA. ovale (includ diinpgloid Murata, J, ,H. Murata, T, SugaM'ar aY,L-R Yang & S.-G.
individua lfsrom Abe-toge ,Shizuoka Prefecture) Wu 2006. New or noteworthy chromosome records
in .4risaema (Arace a<e3) )S. Jap. Bot ,81 :20-25,
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42 Acta　Phvtotax．　Geobot． Vol，59
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　 　 　 霊 　 　 　 　 巽 　 　 　 　 羹
言羃・量・。・、ミ「煽｝o．（卜e≧）冩1o已・1 　　　（N寸寸ON）OD制一°一−。。．．．．　　　　　〔O卜Oこト［刑 笛」，．．．　　　（鶉宀ε判噴O寸O°鬥・．．，，60よOOご【O制900，．，，　　　　（いい寸囚）卜O」N寸ー凵．．．，　　　　粛°いn）斡一刊NO。−．．，．　　　　（O）制いよ一卜OO邑，．．，　（DO囚まO）制卜NOOいH−。．．，．（一一【卜邑O）寸一〔）刑訟O」．．．，　　　　（寸Oよ［）°一刊ひn・．、．．　　　　　　　　　　　　　　　卜り1 　　　（£制頃啗巳O凾m9−．．．．　　　　（。卜O一ご制り寸H−・．．．．（8e鴎OよOO刊寸寸O−，．．．
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髮 　 　 　 雲 　 　 　 冀 　 　 　 　 尊 雲
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轟 串
奮℃齶幕募 二囚）苺≧9己 　　　刑哈嶋い筥．．　　　　刊笛四寸い．．　　　°軸刊゜OHσ。．．霙歪O刊嗣O．．　　　　制OO頃m．，　　　　制αOめい．．　　　　凶O刊ひ一．．　　OO刊聡口N．．蠧ひOO刑卜mO，，　　　　O祠七QNo．．　　　　　　　卜寸− 　　　　りN翌寸α．．　　　　卍寸冖卜N．．霙9O刑勘Op．N．ま［ξ。り§霊．
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詈
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NNI工I工-EElleoetcrotniroonic　 LLiibrbarryary 　SSeerrvivoeice
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March2e08 KOBAYASHI & AL,: New Species ofArisaema 43
Serizawa ,S. 1981. Studie son the genus Arisaema (4). Serizawa,S, 1988, The gcnus Arisaema (Arace aine)
Arisaema amuiense group and A. Iongipeduncula- GifuPrefectur e,Gifu-ken Shekubutsu Kenkyu
turn group .Acta Phytotax .Geobet. 32: 22-30, Kaishi5: 1-14,
Reeeived October i O ,2007; accepted IVbvember 4, 2007
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