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EIlclJSnVu:a1sa16 ut Suurnrco 'wnropotod -7 (aeecelJqri'l)wt1trfi,t7 3o sarcedseq1 ({]O0:.)Z8Z-t LZ:(O tl DISt{.nN trouooecgldf,l 'Ertersnv Surpnlcur uralsei6 ur (eEecEJqr,{'I)wru1{7 snueBeqt Jo ,tor^al y rqcsdel 1g trsrtsqv 't092 'erequP) r?rrErrr^nv IJv 0091 xos odD 'ulnurqreH 'qr?cs.d Itrsra^lporgtuEId rol crlu.J lEUorlENwllellsnV:sserPPE lursord '.rtucJ 'fol t869 nrlxltsnv ojotsc/A Ae^rloc,{rltuag tpg palco'I 'luoru.Seu?l 'tunuEqreH puEI pur uorrE^rasuo]Jo tuoluuedac uelllrlsnV uretsar^A rqcsdel 19 "I MnxopD.rDd Io uollergld,{l 3u!pnlJu! 'eJprlsny urelse6 q (eeersrq1f,1) uruqlt7 snua8aql Jo ^re!^ar Y \oodz\z-ELz. (Z)Er D! st h N Nrttria vol. 13, No. 2 (2000) 274 of (reconstitutedwhere necessary).Conservation codes used are those adoptedby the Depaftment ConservationandLandManagement(Seetheendofthisissuefordefinitionsofconservationcodes). Introducedtaxa are denotedwith an asterisk' Taxonomictreatment InformationpresentedhereforpreviouslydescribedSpeciesiSlestrictedtonewdataregalding paradoxum)' However' morphology,distribution and affinities (and typification in the caseof Lythrum Australia afuli aesciiptionof L wilsoniiisprovided, as recent collections of thisspecies from Westem (e.g.Hewson h"uee*pani"d th" ,angeof morphologicalvariation previously known for this taxon 1990,Highet & Wilson1991). LythrumL., Gen.Pl.I:446 (1753). SeeKoehne (1903) and Hewson (1990) for genedcdescriptions' Key to the speciesof Lythrumin V'lestern Australia I Inflorescencea single flower (very rarely some 2-flowered inflorescences mayoccur) 2 Hypanthiumwith pigmentedspots at base,petals 4-6 mm long' 10-12,5-6 includedand the remainder exserted' Sramens *L'junceum stoloniferousperennial ............... " 2' 2: Hypanthiumwithout pigm€nted spots at base,petals 2+ mm long Stamens4-6 andincluded, or rarely8-12 (with 4-6 includedand the remainderbarelyexseded)..........'..'''.... 1: Inflorescenceof (1)2-7flowers paradoxum 3 Stamens8-12, exserted. Plants glabrous........... " 3' L' 4' L' wilsonii 3: Stamens4-6, includedto exserted.Plants frequently minutely scabrous "" 1. *Lythrum hyssopifoliaL., Sp.Pl. 1:447 (1753)' (1990:Figure 33 Illustftttions.Jessop (1986: Figrtre 461 B); Rye(1987: Figure 132 A-D); Hewson G-I); Jeanes(1996: Figure 185 J-I). notesbelow' Descriptions.Jessop (1986); Rye (198?); Hewson(1990); Jeanes(1996) See also under 17 Nov' 1982' Selectedspecimens exQmined. WESTERN AUSTRALIA: OxbowLake' Warriup' Roadhouse' G.J.Keigiery 5117(PERTH);base of YellowdineRock, c 500m WNW of Yellowdine roadto Ravensthorpe' t Oec.iSSl , nJ. Zepsclri3854 (PERTH); 19 4 km ENE of Jerramungupon ofEsperanceon road 27 Oct.lggl,8.J.laischi &B.A-Fuhrer3732(CANB,PERTH);c' 29kmWNW GrassPatch on toMunglinup,2g O it. t997,B.t t"ptrhi & B.A'Fuhrer3807 (PERTH); 16 1kmSof km WNW of roadto-Scadian, 30 oct.1997, B.J.Lepschi & B.A.Fuhrer 3808 (AD, PERTH);c. 11.5 ptllv c 1 km NE of Shackleton,9 Feb. 1997,B.l. I'epscii & T R. 3392(AD, CANB, PERTH); s'n' HowatharraHill Reserve,21 miles[c. 34 km] N of Geraldton,22 Qct 1976'D' & N McFarlnnd (PERTH);Yanchep (PERTH04362497); Belleview fBellevue], 26 Nov 1953,R D' Royce4500 'uorssnJSrp d 'L requnJ roJ uoxel luql repun ees :sernl€eJ[€:og pue e,r4e1e8e,r;o JequJnuel.Jlrj'1rlldoss,q ? ruo{ sreJJrp '(sjel3u]?qr nuoslufi T elrrl/ o,rl lsJrJerl ur dEIJe^oeruos eq ,{uuteteq qSnoqtle)uoluesxo uaruels su J( Ila,ll sEJeqrunu ueru€ls pu? 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Russell,Nat. Hist. Aleppo,2nd edn '2:253 (1794)' Illustrqtions.Jessop (1986: Figure 461 C); Hewson(1990: Figure 33 D-F); Jeanes(1996: Figure 185 G_TD. Descriptions.References as for L hyssopfolia Seealso under notes below- Selectedspecimens examined. WESTERN AUSTRALIA: EastPerth, Oct' 1902,C' Andrewss'n' (PERTH). SOUTHAUSTRALIA: Tantanoola,Nov 1991,R' Bates26328(AD); nearMclaren Vale,c' 25 km SSWof Adelaide,4Mar. 1956,R.M Oram s.n' (AD96413093;E' MEL' NSWn.v.)' VICTORIA: 10.5miles [c. 17km] NW ofPetersborough,21Jan. 1969,J Anderson34l (AD;MEL n'v ); condahSwamp area, Macarthur-Myamin road, 1l Feb.1969,A.C. Beauglehole &A.E. orchard3o52o (AD; MEL z.v.);Bridgewater Lakes, 21 Jan.1993, J.M. Dalby 93/06 (AD; MEL z v )' Distribution.Known in WestemAustralia from a singleold collection. This species does not appear to havebecome established in westemAustralia, and should be excluded from theflola recoldfol the state. Naturalizedin SouthAustralia and Victoria, and also recorded flom New SouthWales and indigenousto the Queenslandon the basisof single,old specimens(Hewson 1990). Apparently Mediterraneanregion and south-western Europe, and widespread elsewhere (Holm et al.1979,Hewson 1990). Notes.AswithL hyssopifolia,the ifilorescence in L janceamhas been described in theAustlalian literatureas a Solitaryflower in the axil of a leaf,but two-floweredinflolescences a-re occasionally produced(Koehne 1903, Webb 1968). Like L hyssopifolia,s\ch\nflorescences would appear to be rare,but havebeen observed in Australianmaterial (e.g. Bates 26328). \N Lythrumjunceum can easily be distinguished from all otherLythrum species ln estemAusffalia by its stoloniferoushabit, the presence ofdark-pigmented spots at the base ofthe hypanthium and large Petals.