Elegiac couplet in Boethius

Latin Learning Latin
1

I was looking at the first poem in De consolatione philosophiae. It’s written in elegiac couplets. In particular, in the hexameter

Glōria fēlīcis ōlim viridisque juventae,

I count

_ u u | _ _ u _ | _ u u | _ u u | _ _

But I guess it should be

_ u u | _ _ | _ _ | _ u u | _ u u | _ _

Supposing this is the right way to count, is there an explanation for lengthening the final “is” of felicis? As always, corrections are welcome.

2

It occurs at the caesura, that’s the significant thing.

3

Thanks for the tip, Michael!