Text Appearing Before Image: irablethat further specimens presenting this uncommon appearance should be col-lected by persons having the opportunity of doing so. Plate XXIV.âFig. 1, Fibres of wool and Alga magnified. 2, Alga stillmore magnified. Art. LVI.âOn some of the Naturalized Plants of Otago. By G. M. TnoMSON.(Read before the Otago Institute, Ith April, 1874.)Mr. Kirk has recently called my attention to the fact that no list has yetbeen drawn up of the naturalized plants either of Dunedin or Otago. It is tobe regi-etted that steps have not been taken, ere this, to watch and record theintroduction of all foreign plants, as otherwise it becomes in coui-se of timealmost a matter of impossibility, on finding a plant of cosmopolitan distribution,to say, with any degree of certainty, whether it is indigenous or not. We havelately had experience of this difficulty, in the case of one of the commonest ofweedsâPolygonum aviculareâwhich has given rise to so much discussion TRANS. M.Z.!Nc;,nwiL,/.,u.viuL.^J:(7 Text Appearing After Image: ,^/fM/irococcos s/i/Ycmft/s. i^.B&TyqreTt. del. JjB.liiA,. G. Thomson.âOn some Naturalized Plants of Otago. 371 between Messrs. Travers and Kirk. For the future the evil may be to a greatextent avoided, by cataloguing all the non-indigenous plants hitherto collected,and constantly supplementing this record by the addition of every freshdiscovery. It is quite unnecessary to point to the uncertainty which existswith regard to a large proportion of the British flora as to its origin. Inthis country there are some plants to which doubt may yet attach, as to thetime of their introduction and the place from which they were originallycarried. Perhaps there is no method by which foreign plants are introduced insuch quantity and variety as by the direct importation of agricultural andother seeds from Britain and other countries where there is much cultivatedland. Every one conversant with rural matters in England or on theContinent, knows that, even where high cultivation is the rule, hu
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