Probably Schlumbergera truncata. This plant is commonly called “Christmas cactus.” The drawing was made at home. It is a detail from a very large hanging specimen, about forty inches across, that blooms erratically. It may be that my strange watering schedule is not just right, but, somehow, flowers appear in profusion several times during the year. —Henry Evans
170 copies were printed and sell for $200.00 each.