I don't have any; although I would be happy to share should I have some. However, Thompson & Morgan sell several types of nicotiana; including the one you are looking for. You might take a look!

http://seeds.thompson-morgan.com/us/en/product/6549/1

Here is a link that might be useful: Thompson & Morgan

Thankyou I went to there site and I will be ordering them tomorrow. It is just what I was looking for and I do not have there catalog but will order them on line.

Lots of companies sell Nicotiana seeds.
The really tall ones are N. sylvestris.
The shorter ones are N. alata
Both are night fragrant

Yes. A lot of companies do sell them. I get most gardening catalogues; but that is one that came to mind first.

Thanks to all of you I did find a place and have submitted my order.

Oh darn, I have some for you! I got them at the seed exchange, here at gardenweb. Did you try that? I use it a lot in my garden and find that it is perennial here in z7 NC. Which one did you mail away for? I have both N. Alata which are 5 ft tall graceful sprays of white fragrant flowers, and N. Sylvestris which is also 5 ft tall but a single upright stalk of white fragrant flowers which makes a terrific specimen plant. I also recommend N. Langsdorfii which is not fragrant but just so lovely, has 4 ft tall stalks of green dangling bells (I dont have seeds of this). All 3 of these will freely resow themselves.

Just read your post,I have LOADS to give away.I grow these every year,I love the fragrance.They produce thousands of seeds in each pod,mine grow from volounteers now,but I have fresh seed if you would like some.