246 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
117. Sedum acre Linn. (fig. 143). 
5. acre Linn., "Species Plantarum,'* 432, 1753. Masters in Gard, 
Chron. 1878, ii. 684. 
Illustrations. — Sowerby, " English Bot." (ed. 3), pi. 532 ; Reichenbach, 
" Flor. German.," 23, tab. 51 ; DeCandoUe, " Plantes Grasses," tab. 117 ; «♦ Flora 
Fig. 143. — S. acre Linn. 
Danica," tab. 1457 ; Curtis, " Flor. Londin.," 1,114 ; Cusin and Ansberque, *♦ Herb. 
Flore fran9aise, Crassul.," tab. 27; Tenore, "Flor. Nap." tab. 229; Plenck, 
" Icones Plant. Medicalium," tab. 351. 
S. acre when in flower cannot be confounded with any other of 
the cultivated species, its large yellow blossoms and flattish triangular 
leaves, very broad at the base, easily distinguishing it. S. sexangulare, 
which it resembles in size and colour, has linear leaves and smaller 
flowers ; S. anglicum, which it somewhat resembles when out of 
bloom, has leaves broadest near the middle, not broadest at the base. 
Description. — A small creeping evergreen forming a mat. Stem creeping 
and rooting, much branched. Barren branches erect, ^ to 2 inches high. Leaves 
alternate, imbricate, green, smooth, ascending, ovoid-triangular, blunt, slightly 
spurred, to inch long by -^^ wide at base, having an acrid taste. Inflorescence 
a short cyme of 2 to 3 branches each with 2 to 3 flowers, and a flower in the fork. 
Buds conical. Flowers ^ inch across. Sepals leaf-like, green, fleshy, lanceolate, 
blunt. Petals bright yellow, lanceolate, acute, wide-spreading, twice the sepals. 
