qUERCUSMONTANA(FAGACEAE),NEWTOMISSOURI MarianSmith NancyParker SouthernIllinoisUniversity SouthernIllinoisUniversity Edwardsville,Illinois62026,U.S.A. Edwardsville,Illinois62026,U.S.A. [email protected] [email protected] ABSTRACT Quercusmontana(Fagaccac)isanewspecieslorMissouri,extendingthewesternedgeoltherange lorthespeciesinNorthAmerica. RESUMEN Qucirusmontana(Fagaceac)esunanucvacspecieparaMissouri,queextiendeelextremooccidental desuareaenNorteAmerica, QuercusmontanaWilld.,rocl<chestnutoak,iscommonintheNEUS,andknown PtAo,ocmc,urSCi,nTANk,,CVTT,,DVEA,,GWA,Vli(.,NiIN.,xoKnY,&MEM,ulMlDer,M19A9,7).MkThMeS,spNeHc,ieNsJ,alNsYo,hNaCs,bOeHe,n calledQ.prinusk.insomeoftheNorthAmericanbotanicalliterature,butbe- causeofpersistentproblemswiththetypificationandapplicationol thatepi- thet,wearefollowingNixonandMuller(1997)musingthenameQ.montana. TherehasbeenarecentproposaltorejectthenameQ.prinus(Whittemore6? Nixon2005).WereportitfromfoursitesinWayneCoinsouthernMissouri,on landownedandmanagedbytheUSArmyCorpsofEngineers(USACE)sur- roundingkakeWappapello.Thelakewascreatedin1941bytheUSACEtocon- trol floodingof farmland on the St.FrangoisRiver(USACE 2002).The WappapelloProjectconsistsof44,000acresoflandandwater;thelakevaries insizefrom5,200to23,200acresinsurfacearea,dependingupontheseason. Theoriginalvegetationoftheareaconsistedol woodlandsthatwereparto( theeasterntemperatedeciduousforest(Yatskievych1999).Thisisthefirstre- portofQ.montanainMissouri,andarangeextensionofca.50kmforthespe- ciesonitswesternboundary.BecauseoftheproximityoftheQ.montanapopu- lationsinsouthernIllinois(Nixon&Muller1997;seedistributionmapinFNA, Vol.3,pg.476)andthenumberofpopulationsdiscoveredinWayneCo,MO, thecurrentreportsuggeststhatforestedareasincountieslyingbetweenthe MissouriandIllinoispopulationsshouldbesurveyedforthespecies. Thepopulationsreportedbelowwerefromthreegladesandanoak-hickory forest.Inallcases,thespecimenswerecollectedfromsaplings(1-1.5m)grow- inginwell-drainedrockysoil.AllspecimenswereverifiedbyAlanWhittemore (USNationalArboretum,Washington,DC).Althoughsaphngsappearedtobe abundantintheareas,theparenttreeswerenotidentified.Atglade1,associ- SIDA21(3):1921-1922.2005 1922 BRIT.ORG/SIDA21(3) arcdspeciesincludedAcersaccharum Michx.,Caryaovaiu(Miller)K.Koch, PhiiaiiusoccidcniaUsL.,QucirusalhaL.,Q.unbricanaMichx.,Q.marilaudka Moench.,Q.rubraL.,Q.xtridentataEngelm.andUlmusaniericanaL;atglade 2,A.negundoI-.,CerciscanadensisL.,Q.alba,Q.imbricaria,Q.muehlenbcrgii Hngelm.,Q.rubra,andQ.xtridentata\and A.saccharum,Q.marilandica.Q. muehlcnbergii,Q.rubraandL'.alataMichx.atglade3.Associatedspeciesat theoak-hickorysiteinchidedA.saccharum,CckisoccidcntalisL.,C.canadensis, Q.imbncaria,Q.marilandica,Q.stcllataWangvarstcllata,Q.xiridcnlala,Q. rubraandIJ.alata. Voucherspeciiiicn:MISSOURI.WayneCo.:\:,oSonUSbTto1Iwy34;go•-1iniWaiitlturnNonRebel Cavel^el{Ca>RclMD):goca,O.l"^ini,tal<erightforkonCoRd311antlcontinueNca.1.25mitoIh'st USACHparkinglot:gothroughgatelorca.0.3mi;limestoneglatieonleholroadtgladc1);N37.12.35 W090,29.4y;7Aug2004,M,Smith04-151(MO). ACKNOWLHDGMFNTS ThisstudywasfundedbyaUSAGE,StLouisDistrict,contract(DACW4.3-02- P-10.10)awardedtoM.Smith.WethankJamesGraceyandthestaffatUSAGE WappapelloLakeProjectOfficeforlogisticalsupport;AlanWhittemore,US NationalArboretum,forverificationoftheoaks;GeorgeYatskievych,Floraof MissouriProject,forhelpinspecimenidentification;PaulMcKenzie,USFWS, loreditingsuggestions,andPaigeMettler,LindenwoodUniversity,andGenneth Wells,SIUE,forhelpinthefield.GeorgeYatskievychandRobinC.Kennedy reviewedanearlierdraltofthemanuscript. RHFF.RENCnS NixoN,K.C.andC,H.MuiirR.1997.0uercL/s,Linnaeussect.Qucrcus.In:FloraofNorthAmerica EditorialCommittee,eds.FloraofNorthAtnerica,Vol.5.Magnoliophyta:Magnoliidae andHamamelidae.OxfordUniversityPress,NewYork.Pp.471-506. USACF.2002.LakeWappapelloMasterPlan.[Online]Availablewww.mvs.usace.army.mil/ pm/wappapelloplan/masterplan.html.January10,2002. Wi-iifTEMORF,A.T.andK.CNixon.2005.(1683)ProposaltorejectthenameQuercusprinus (Fagaceae).Taxon54:213-214. Yatskievych,G.1999.Steyermark'sfloraofMissouti.Revisededition.Vol.1.MissouriDe- partmentofConservation,JeffersonCity.Pp.51-76.