I'd welcome a wiki page of Ipomoea. Also Merremia and Turbina. I don't think I'd enjoy a photograph of the sweet potato bin at the local supermarket, though. Regarding germination of I. pandurata. Its seed may have a hard coat that needs to be filed or nicked before it is planted. This is certainly the case with I. alba. I've tried germinating Tropaeolum speciosum seed a couple of times. They never germinated, but developed a healthy coat of mold. I suspect these seeds must be sown soon after harvest and do not tolerate extended dry storage. Gene Eugene Zielinski Augusta, GA