Thank you Tienito. I used to grow them & did so, from seeds, too, even. I'd enjoy 'crossing' my own & just to see what I'd be able to create. I even like looking at old Japanese wood block, prints of them, as even some old varieties, were so stunningly beautiful.. Try to look for images online.
The "sticky post', in the Ipomoea' Forum, at the top of the first page, has at the bottom of first post (?) a Japanese translation link, to learn the names, if you'd want to know them. But some, like Kanji, is a Chinese translation, of Japanese , into "English' which they don't care much for !
But, it is an unusual language & 'no' may mean of, by, from, etc... & often, you don't want a "literal translation" as they use other similar things, to describe something...in the cultivar name. Usually, as an an adjective, for a noun, also in the name, that "reminds them", of the feature/s of, or about the flower blossom, its self.
