Select Multiple Ranges Stored In Range Array

I am trying to do something that sounds fairly straightforward but have not been able to achieve the final result.

I have a sheet which has multiple range addresses stored in different cells and so far I have been able to pass the Range address to Range variables by looping through a range array. Now I would like to select these multiple ranges. My code looks as below;

VB:

Dim Cnt As Integer
Cnt = Sheets("Sheet1").(Range("1040").Value ' Cnt holds the the total number of ranges to be specified in Sheet1
Dim RStr(1 To 80) As String ' This will hold the range addresses specified in Sheet1 in cells C1041 to C1120. Upto 80 range addresses could be specified.
[SIZE=2] Dim Rng(1 To 80) As Range ' This will store the ranges based on the range addresses stored in RStr()
Dim i, j As Integer,

[Code]...

I am not sure on how to select multiple ranges using range array hence tried Union() however it is obviously not correct and throws an error.