I just looked at Fish-Vet. com, and now Shawn Prescott has 35 varieties of Cryptocoryne listed, including C. cordata, var. rosanervis, C. gasseri, C. hudoroi, C. longicauda, C. purpurea, c. scurrilis, C. striolta, and C. Thwaitesii. The above species are in limited supply and are not cheap, but are not nearly as expensive as many of the rare ones pictured on the Rayon Vert Aqua site. Gentlemen, grab your wallets!