Melocactus azureus Caudiciform The margins and bumps are

The margins and bumps are red and the main part of the leaf is red and green (Christmas colors

Islaya islayensis A rarely seen cactus from Chile and Peru that is closely related to Eriosyce

Now considered to be a Haworthiopsis

Aloe suprafoliata One of the most unusual Aloe species

Fairly uncommonly offered

Melocactus azureus Caudiciform The margins and bumps areMelocactus azureus Family: Cactaceae. This is a nice cephallium forming cactus with blue to blue green skin. It looks and grows like a normal cactus for several years but once it gets big enough the main plant stops growing but produces a large hairy inflorescence that continues to grow for the rest of the life of the plant. Eventually the inflorescence can be taller than the plant itself. This is more tropical than most cacti so it doesn't like cold