
%0 Journal Article
%A Morrison, DA 
%A Myerscough, PJ 
%T Genecologcal differentiation in <I>Leptospermum flavescens</I> Sm. in the Sydney region
%J Australian Journal of Botany
%D 1982/08/01
%V 30
%N 4
%P 461-475
%K 
%R https://doi.org/10.1071/BT9820461
%U https://www.publish.csiro.au/paper/BT9820461 
%X Evidence is presented for the existence of two genecoiogically differentiated groups in Leptospermum flavescens in the Sydney region. A morphologicai study of 18 attributes of herbarium specimens indicates three groups of plants: one small-leaved, one large-leaved and one intermediate. Comparative cultivation under standard conditions and seed germination experiments indicate only two discrete groups, because the intermediate group behaves similarly to the large-leaved group. Correlation of population distribution with soil nutrient status suggests that organ size in the large-leaved group is phenotypically plastic in relation to low soil nutrients. This is confirmed by comparative cultivation under high and low nutrient regimes. Reciprocal transplanting of cuttings on a small scale suggests that the two groups are intolerant of each other's habitats. 
