I purchased two Jackmanii Superba - both have tiny blooms on them.

#1 looks like Clematis Venosa V. (previously owned one) - What do you think?



#2

I think you're right. My only thought is that generally Venosa has five sepals but it could be just a fluke.

There is a clematis Jenny--part of the newer Jackmanii group with a white bar
Clematis 'Jenny'

I have a feeling there is quite a bit of confusion over the correct Jackmanii Superba.
According to COTW, it's "Large deep blue-purple flowers with broader tepals than those of 'Jackmanii' and red shading along the midribs which fades with age."

Your second one looks really small but that could be if it's the first few blooms perhaps. But I don't see the red shading on the midribs though. These were the first blooms on mine:

Here's one of them with two blooms: