The most important genera are Crocus (q.v.), with about 70 species, Iris (q.v.), with about ioo, and Gladiolus (q.v.), with 150.
The same mode of increase occurs in the gladiolus and crocus, but their bulb-like permanent parts are called corms, not bulbs.
Foetidissima (stinking iris), Gladiolus communis, a rare plant found in the New Forest and the Isle of Wight, and Romulea Columnae, a small plant with narrow recurved leaves a few inches long and a short scape bearing one or more small regular funnel-shaped flowers, which occurs at Dawlish in Devonshire.