I should have noted a few days ago when I posted Jatropha berlandieri (Torrey 1858) that this is an invalid synonym for Jatropha cathartica (Teran & Berlandier 1832). Since J. cathartica has priority, it would be the correct name. Old habits are sometimes hard to change.
With that said, here's a new photo of Haworthia venosa ssp. tesselata var. simplex. Of course, there is no variety simplex. Or, at least, it's not accepted as a variety by most anyone. It's just a part of the variability of the sub-species tesselata. Be that as it may, it's a nice variation.