Rereading that post above my last one, Polly, I just noticed your reference to it blooming in August. Okay... then it is unlikely it is a form of armandii as they are very early bloomers. I should have read the original description more closely!
Perhaps it is Clematis uncinata, which was brought to England from China in the early 1900s. It can have 4-6 tepals and does have pronounced yellow anthers. It's also scented, evergreen and a late-summer bloomer. Unfortunately, there is no description of the leaf texture for uncinata that I can find in any of my references. The bluish tint also throws me, as I can't find a single fragrant clem referred to as having a bluish tint to the tepals. I wonder if Sue (kniphofia) could tell us which one this is. She's quite knowledgeable about clems that can be found over in the U.K., whereas my knowledge about the clems that haven't made it "across the pond" is limited (for obvious reasons!).
Don't you love a mystery?!
Polly, recta will indeed grow for you, if that's the one you were asking about. It's a very cold-hardy species clem. If I were going on a hunt for a species-type, fragrant clem for your area, I'd be looking for this one:
http://www.clematis.hull.ac.uk... . It's a flammula and I think it's got such an interesting appearance! There's also a Canadian integrifolia that I think looks very nice:
http://www.clematis.hull.ac.uk... .
Gee, one day I hope our database here will be complete enough to be so handy! That's my goal... but soooo much work to go!
