Bivonaea
(named after Antonio Bivona-Bernardi, a Sicilian botanist, author of "Sicularum Plantarum Centuria I. et II.," Palermo, 1806). ORD. Cruciferae. A pretty little monotypic genus, well adapted for ornamenting rockwork or the front of flower borders. A dry sandy soil is most suitable for its culture. Propagated by seeds, sown in spring where the plants are intended to remain, thinning-out being necessary to ensure full growth.
B. lutea (yellow).* fl. yellow, small; racemes terminal, elongated as they grow; pedicels filiform, bractless. April. l. alternate, lower ones stalked, the rest sessile, cordate, stem-clasping at the base, ovate, toothed, bluntish. Stem filiform, sparingly branched. h. 3in. to 6in. Sicily, 1823. An annual.