ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION. 23I 
Description. — Bright-green^ glabrous, evergreen perennial. Roots fibrous. 
Stems decumbent, sinuous and rooting below, with many ascending or erect 
branches about 6 inches high, almost all of which flower. Leaves alternate or in 
whorls of 3 to 5, usually alternate on the upper part of the flowering shoots, 
bright green, sessile, linear, nearly terete, blunt, i to ^ inch long. Cyme terminal, 
flattish, leafy. Flowers golden yellow, sessile, f to ^ inch across. Sepals unequal, 
resembling the leaves in shape and colour. Petals lanceolate, acute, concave, 
wide-spreading, twice the sepals. Stamens nearly'as long as the petals, filaments 
Fig. 133. — S. mexicanum Britton. 
yellow, anthers reddish. Scales minute, cuneate, yellow. Carpels slightly 
spreading, yellow, equalling the stamens. 
Flowers April (gentle heat) ; June (cold frame). Not hardy at 
Dublin ; nearly so at Rostrevor. 
Habitat.— Near Mexico City. 
Though only described in 1899 from specimens raised in America 
from seeds collected near Mexico City, there is evidence of its culti- 
vation in England at an earlier date. It is clearly the plant (of which 
Maximowicz remarks " mihi ignotum "), described by Masters in 
1878 as 5. sarmentosum Bunge (a Chinese species), under which name 
