public void addBloomRange(GregorianCalendar[] range){
		if(range == null || range.length != 2){
			System.out.println("error in Tree#addBloomRange: new range must be a length 2 array");
	
		}else if(range[0].compareTo(range[1]) > 0){
			System.out.println("error in Tree#addBloomRange: earlier date must be first");
		}else{
			bloomRanges.add(range);
		}
	}