These 3 genera, in the Crassulaceae family, include plants from many parts of the world.
Astrophytum (Bishop's Hat) is a (mostly) star shaped cactus from north/central Mexico and southern Texas, USA.
Minutes of the society's meeting (PDF).
Meetings are recorded as they take place. If you are unable to join the meeting using Zoom you can watch it here. If you watch the recording while the meeting is in…