Schizostylis is a former genus in the Iridaceae family that is now included in Hesperantha. There was only one species, Schizostylis coccinea, which differed from Hesperantha species by growing from a rhizome instead of a corm. This difference was considered to be an adaptation to it growing in wet habitats and was not considered enough to justify it not being included in Hesperantha.
Schizostylis was the subject of the pbs list topic of the week in February 2003. The topic: "Schizostylis--Hesperantha, a confused genus" was introduced by Alan Kennedy who has a NCCPG National Collection of Schizostylis Cultivars. Click on this link to read his Introduction.