How do I get my series name to appear in my line chart legend in excel using C#

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C#

interop

I'm trying to change the series names of my line chart in Excel. I'm using C# (interop) to create the chart. This is what I have so far:

Excel.Range xvalues = myWorkSheet.Range["R3", "R5"];
Excel.Range values1 = myWorkSheet.Range["S3", "S5"];
Excel.Range values2 = myWorkSheet.Range["T3", "T5"];
Excel.Range values3 = myWorkSheet.Range["U3", "U5"];
Excel.Range values4 = myWorkSheet.Range["V3", "V5"];

Excel.SeriesCollection sc = myChart.SeriesCollection();
myChart.ChartType = Excel.XlChartType.xlLine;

Excel.Series series1 = sc.NewSeries();
Excel.Series series2 = sc.NewSeries();
Excel.Series series3 = sc.NewSeries();
Excel.Series series4 = sc.NewSeries();

series1.XValues = xValues;
series1.Values = values1;
series1.Name = "mySeries1";

series2.XValues = xValues;
series2.Values = values2;
series2.Name = "mySeries2";    

series3.XValues = xValues;
series3.Values = values3;
series3.Name = "mySeries3";

series4.XValues = xValues;
series4.Values = values4;
series4.Name = "mySeries4";

The chart displays fine, and a legend appears where I want it, but the series names don't appear next to the line colors in the legend. I'm not sure what I'm doing wrong.

What I have tried:

I've done some searches and have tried a number of different things. I tried creating the entire range from R3 to V5 and then using the MyChart.SetSourceData routine but that didn't work either. The current configuration make my lines look the way their supposed to (although I would like to make the lines start from the Y axis and not indented by a data point)