This section is from the book "Handbook Of Hardy Trees, Shrubs, And Herbaceous Plants", by W. Botting Hemsley. Also available from Amazon: Handbook of hardy trees, shrubs, and herbaceous plants.
Near Moraea, but with the filaments united in a tube and the petaloid stigmas fringed. A South African genus of several species with curiously spotted evanescent flowers. F. undulata has the flowers spotted with purple upon a green ground, and there are many other remarkable species. Named after Ferrari, an Italian botanist.