Conophytum depressum ssp. perdurans TS 458 (Rietfontein)
The typical subspecies is more or less monocarpic and essentially ungrowable. Subspecies perdurans is not only more attractive but can be maintained in collections with care. Availability has been a problem because seeds have tended to germinate poorly. However, some recent seed collections have germinated well and plants have grown to flowering size within one or two years, so it should soon become commoner. It seems fairly widespread in the wild, growing in grit pockets on gneiss in similar habitats to C. pellucidum. However, it tends to be buried in the grit and quite cryptic.