Most of the related plants do not occur in those parts closest to other equatorial regions in the geographical sense, but in localities in which climate and physical conditions are similar. Probably there are more affinities in the coastal strip of which this isle is typical than in all the rest of the continent of Australia. One prominent example may be mentioned-viz., "the marking-nut tree."
The fruit of the cashew or marking-nut tree betrays a similar feature in more pronounced fashion. The fruit is really the thickened, succulent stalk of the kidney-shaped nut. The tint of the fruit being attractive, unsophisticated children eat of it and earn scalded lips and swollen tongues, while their clothing is stained indelibly by the juice.