A NOTE ON THE GEOGRAPHIC RANGE OF ANTENNARIA AROMATICA EVERT (ASTERACEAE: INULEAE)

2 Pages·1991·0.83 MB·English

by  R J Bayer

NOTES
A NOTE ON THE GEOGRAPHIC RANGE O—F ANTENNARIA
AROMATICA EVERT(ASTERACEAE: INULEAE) In thespringof
1980, LedyardStebbinsandIdiscoveredaherbariumspecimencollected
byArthurCronquistatQuadCreek,BeartoothPass,Montanathatappea-
red to be different from any other Antennaria known to us. Later that
summer, avisit to the herbariumofMontanaStateUniversity(MONT)
turnedupseveralotherspecimensofthetaxon, identifiedvariouslyasA.
alpina(L.)Gaertner,A. mediaE. Greene,andA.umhrinellaRydberg. We
wereabletocollectandstudyspecimensfromQuadCreek{Bayer&Stebhins
8092),TigerButtesouthofGreatFalls,Montana{Bayer&Stebbins8113),
and Mt. SacajaweanorthofBozeman, Montana{Bayer&Stebbins8104),
the first two collections being eventually cited as paratypes ofthe new
species. It was immediately obvious to us that this very glandular,
aromatic,plantwasanundescribedspeciesoiAntennaria. Aboutthesame
timewebecameawarethat ErwinEvert, whowasworkingonafloristic
treatmentofParkCounty, Wyoming, hadcometothesameconclusion,
after collecting the species on limestone talus near Cody, Wyoming. In
collaborationwithus,hepublishedthenewspecies,callingitA.aromatica
Evert(1984). EvertdescribedtherangeasParkCo.,WyomingtoCascade
Co., Montana(Evert 1984).
Asaresultofasearchthroughallareaherbaria,adistributionmapwas
presented recently, showing the approximately 30 known sites for the
speciesinWyoming,Montana, withtwoslightlydisjunctpopulationsin
Alberta(Bayer 1989B). My ideaofthegeographical distribution ofthe
specieshaschangedlittlefromEverts(1984)firstdescription;itsprimary
geographical distribution is the front ranges ofthe Rockies from near
Cody, Wyoming north to the Alberta/Montana border (Bayer 1989B).
Somedisjunctpopulationsoccurinpreviouslyunglaciatedportionsofthe
AlbertafrontrangenorthtonearMountainPark,Alberta(Bayer 1989B).
InarecentdiscussionoftherangeoftherecentlydescribedA.aromatica
Chmielewski & Chinnappa(1988) accepted it as adistinct species, but
someoftheeightspecimenstheycitedasA.aromaticaaremisidentified. I
havebeenabletodeterminebyinspectionordeducethatmostofthefive
specimenscited by Chmielewski &Chinnappa(1988) from Montanaare
A.aromatica(sensuBayer1989B).Threeofthespecimensrepresentcollec-
tionsfromsitespreviouslyknowntome;Cronquist8092(whichoriginally
ledustothetypelocality),Neeley&Smith1663(atornearthetypeloca-
lity), and Daubenmire48231 (sameasBayeretal. MT-734citedinBayer
Sh)a 14(3):5()5. 1991.
506
1989A).IhavenotseenFonellas.n.,butitislikelytobeA.aromaticasensu
Bayer, 19H9B)asitisfromthepeakadjacenttoMt. Sacajawea,whereA.
aromatica is abundant. One specimen, Suksdorf 1063 is clearly non-
glanckilarwith light brown phyllariesand upsurgent stolons and in my
opiniontypicalA. /nuhrinellaRydberg(sensuBayer 1988). Thespecimen
fromsouthernAlbertacouldpassforA.aromatica(Stebbins,pers.comm.)
and iswithintheextendedrangeofthespeciesrecentlypresented byme
(Bayer 1989B). I was unable to obtain the British Columbiacollection
{Selhy289)forverification.
The most significant and controversial range extension they
Chmielewski&Chinnappa 1988)reportisBeli&Johnson766fromMono
Co.,California. Afterexaminationofthisnon-glandular, black-phyllaried
specimen, IconcludeitisalpineA. mediaE. Greene(sensuBayer 1988).
StebbinsandEvert,afterexaminingthisspecimen,concurthatitisclearly
A. media(Stebbins, pers. comm.).
In my opinion, two oi the eight specimens that Chmielewski &
Chinnappa(1988)havesitedasA. aromatica, including themajorrange
extension toCalifornia, aremisidentified. Consequently, I stillmaintain
thatA. aromaticaisanarrowlyrestrictedendemic, basedonthesizeofits
rangeandtheratheruniquehabitatrequirem—entswhencomparedtoother
sexually reproducingspeciesoiAntennaria. ^^-j Bayer, Departmentof
Botany, UniversityofAlberta, Edmonton, AlbertaT6G2E9, CANADA.
refhrhnc;f.s
BAYER, R. j. 1988. Typification ofwestern North Amenciin Antennaria Gaertncr
(Asreraceae: Inuleae). I. Sexual species of sections Aipinae, Dioicae, and Plan-
taginitoliae.Taxon37:292-298.
1989A.PatternsofisozymevariationinwesternNorthAmericanAntennaria
(Asteraceae:Inuleae).I.DiploidandpolyploidspeciesofsectionAlpmae.Amer.J.Bot.
76:679-691.
1989B.Asystematicandphytogeographicstudyq{Antennariaaromaticaand
A.demifdlia(Asteraceae:Inuleae)inthewesternNorthAmeticanCordillera.Madrono
36:248-259.
CHMliIcaELEvEeWrtSK(AIs,teJr.acGe.ae:C.ICnu.leCaHe)I.NSNiAdaPP1A3:.25169~88.258R.angeextensionofAK/OTW^n^r/raw^-
EVERT,E. 1984.AnewspeciesoiAntennaria(Asteraceae)fromMontanaandWyoming.
Madrono31:109-112.
TWO WEEDY SPECIES, AMMOSELINVM BUTLERI (UM-
BELLIFERAE)AND—LEPIDIUMAUSTRINUM(CRUCIFERAE),NEW
TO MISSISSIPPI. The following notes on two species, Ammoselinum
butleri (S. Wats.) Coult. & Rose and Lepidium anstrmnm Small, are
SiHA 14(3):5()6. 1991.