DOCUMENTED CHROMOSOME NUMBERS 2005:1. MISCELLANEOUS COUNTS FROM WESTERN TEXAS, MOSTLY TRANS-PECOS

2005·0.73 MB·English

by  A Michael Powell

DOCUMENTEDCHROMOSOMENUMBERS2005:L
MISCELLANEOUSCOUNTSEROMWESTERNTEXAS,
MOSTLYTRANS-PECOS
A.MichaelPowell BL.Turner
Herbarium PlantResourcesCenter
SulRossStateUniversity UniversityofTexas
Alpine,Texas79832,U.S.A. Austin,Texas78712-0471,U.S.A.
ABSTRACT
Twenty-sevenmeioticchromosomecountsarereportedtor20speciesinninelan^iiliesoiplantsfrom
westernTexas,mostlytheTrans-Pecosregion.ThecountsforPackeratexensis,Chamaesycestictospora,
AstragalusargiUophilus,A.higeJovii,andA.marcidusarefirstreports.
RESUMEN
Sepublicanveintisieterecuentoscromosomaticosenmeiosisde20especiesdenueve(amiliasde
plantasdelOestedeTexas,lamayoriadelaregiondeTrans-Pecos.LosrecuentosdePackeratcxensis,
Chamaesycestrictospora,AstragalusargiIlophilus,A.bigelovii,yA.rnarcidiissonlosprimerosrealizados.
Budcollectionswereobtainedandthefollowingchromosomenumberdeter-
minationsweremadeduringthecourseoffloristicfieldworkinTrans-Pecos,
Texas,andnearbyareasofthestate.Meioticchromosomecountswereproduced
bythefirstauthor,orinsomecasesinitiatedbythecollectorcitedandverified
byAMP,usingtechniquesdescribedinTurnerandJohnston(f96f);thesecond
authoralsoverifiedmanyofthecounts.Weacknowledgethecollectionsand
chromosomalobservationsofE.F.McRae,W.Jacobs,D.Foster,andS.A.Powell.
VouchersareinSRSCand/orTEX.
Asteraceae
BahiaabsinthijoliaBenth.In=2411.BrewsterCo.:11.2kmF.NEofLajitasalongHwy170,B.L.
Turner24-45.
Pac)?eratexensi,sO'Kennon&Trock.2n=23II.CjillespieCo.:2.4kmNolKeese-SagebeilRoad,ca.
1.3kmNoltypelocality,B.L,Turner24-7.5.
PsathyrotopsisscaposaiA.Gray)H.Rob.2n=1911.HudspethC~o.:ca.5.1kmSEofintersect,ofHwy
192(toIndianHotSprings)withQuitmanPassroad,B.L.Turner24-358.
SolidagogiganteaAlton.2n=911.PresidioCo.;ca.3.5kmNNEofRuidosa,B.L.Turner23-18T
Brassicaceae
StreptanthusplaytcarpusA.Gray.2n=1411.CrockettCo.:ca.12.9kmEofSheffield,roadsidepark
alongU.S.90,whereitdropsoffintoPecosRiverValley,B.L.Turner21-202.
Cactaceae
OpuntianmcrocentraEngelm.In=11II.CulbersonCo.:3.2kmNofKent,B.L.Turners.n.
SIDA21(3):1663-1664.2005
1664 BRIT.ORG/5IDA21(3)
Euphorbiaceac
(!i(imiit'sv(fslii1(is/'(irijU-i\i;clm)Small.2m=(iIIPecosCo.:40kmNofU.S.&7andU.S.'-)0junct.,
alongU.S.^)0,l:J:\URac!4.
OnnudcsytcthciuiLdU..C,W'heclcrJShinners,In=1411.PresidioCo.:1>-)kmVVolRedlord,l:.li
Fabaceae
/As\tsi(\iri\i\it;.iii/Iiii,tssi/'ni\,\t^tfU/(in>'ipiluAl,uCsirCao)'r,y.2m2f=i-11IIII.11I,lRuedsapgeatnliCoC.^o:.:cac.a.1.*1-2)'k^)mkSmolWBiolgSLiaekrer,a/)B'.l!..an/elau,/l1e1r1.24I-i4i1n]cr
24-12.
Astra^ahisMun(iiliisCivenee\Rydb,2m=11II,PresidioCo.:NolMaria,^.^JkmSolJellOavisCo.
line,H.I..Iiumcp24-l,i4;nearheadolPmto(Canyon,48kmSWolMaria,B.L./urMcr24-104.
AstI'liy^iilusMi(il/i,s,siMiii\Tori".\'<ircai'lci(GreeneexRydb.)Tidestr2n=11IIIluds]x-iliCo.:ca.12
kmI'olSierraBlaiica,/>./..Illruer24-26.
Hydrophyllaceac
II''/hiiuiiieclliIiIIiiionlccnfi^iitijCoriiedenTeo.rr2ii2m==II1I1I.III.ICnrdasnpcetCho.C:o.1:6e.a4.k12m.'-)WkmofWCroafneS,ieBr.rLa.BTluarnneear,l2i4.L-.(i/lurMer24-n.
i'hihclui/'()/'(iTorr.cSrA.Cray,2m=11II.BrewsterCo.:ca.8kmalongAguaFriaroadIromIIwy
118.Rl./k/mci2I-,H,
I'hiiiclitiri)|)i(s((;(|,l',Machr,}l,M,johnsi.2m=IIII,BrewsterCo,:ca,.f2kmalongAgnal-riaroad
Irom11wy118,IJ,I.,Ikriier2i-36.
Liliaceae
Sclh)c/i()((ni(i)M((\(i/iinMScheele,2m=8II,PecosCo:GlassMts„R,WarnockPark,c.i,45kmSol
FortStockton,/>.)../iiiMcr24-/7t2
Raminciilaccac
ntiphiniuiuiMniMMiiR\'dh2m=8IIBrewsterCo.:4.2kmSofAlpine,AM.Powell6427.
Solanaccac
ChamacsiUiuhan'uiihlcsBritton.2n=24II.BrewsterCo:.Alpine,aboveKokernotLodge,A.M.
Povvel/and,SAJMnc/l6281,6282,628.Hcountsfromthreemdividnalplants).
C.hiiinaiSiiuulu;MudidiUniinal)A.Gray.2m=12II.BrewsterCo.:SulRossStateUniversitycainptis,
VV./((col'sand/).l-'ostcr6;sidewalkabo\'eKokernotSprings,B.L.illMier99-9.5;Aliiine,near
fK4o..k5ekrnmotSLIooldgAel,pAin.eM,.AP.oMwe.lPloawenldlSa.nA.dPSo.wAe.lPlow62e7l9l,5652488(.)(countsfromtwoindi\adual[daiits);
ACKNOWl.FiDGMFNTS
WcthankDaleH.Johnsonlorhisreviewcomments.
RHFFRFNCFS
TuRNrR,B.L.andM.C,Johnston.1961,ChromosomenumbersintheCompositae.III.Certain
Mexicanspecies,Brittonia13:64-69,