Lewisia
(named after Captain M. Lewis, 1774-1809, who accompanied Captain Clarke to the Rocky Mountains of North America). ORD. Portulaceae. A monotypic genus, the species being a very curious and handsome hardy herbaceous perennial, well adapted for growing on rockwork, in crevices where the roots can obtain plenty of moisture without stagnancy. It flourishes best in a sunny spot; indeed, this is the only situation in which it will produce flowers. During hot summers, Lewisias should have a daily watering. Propagated by seeds; or by divisions of the roots, in spring.
L. rediviva (revived). fl. pink, with a nearly white centre, from 3in. to 4in; across; calyx finely veined with red; scapes one-flowered. Summer. l. in rosettes, linear, bluntish, succulent, withering on the appearance of the flowers. Roots edible, tapering, fleshy. h. 3in. to 4in. North-Western America, 1826. (B. M. 5395.)