I can't work out who collected these seeds, but they came to me from Pavel Pavlicek, and are listed as deriving from El Sabinitos in San Luis Potosi, Mexico.
Very unusual plants, pale with yellow flowers, look to me most closely related to S. albatus.
Plants pictured are in 7cm square pots.
All plants are sent bare root (i.e. minus pot and substrate).
Orders are posted out each Monday. In order to give me time to pack orders placed during the weekend, orders placed each Saturday to the next Friday will be posted the following Monday.