234 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
late, spreading, acute. Stamens orange, nearly equalling the petals. Scales 
minute, roundish, greenish. Carpels orange, nearly erect, shorter than the 
stamens. 
Flowers February-April (gentle heat) ; May- June (cold frame and 
open ground). Hardy at Dublin and at Warley, Essex. 
Habitat. — Nuevo Leon and Coahuila, Mexico. 
Much rarer in cultivation than its merits deserve. I have received 
it from Washington (via Wisley) , New York, and the Missouri Botanic 
Garden, also from Dresden and the Museum d'Histoire Naturelle at 
Paris. It is in a few English gardens, and Perry of Enfield, Haage 
& Schmidt of Erfurt, and Correvon of Geneva have it for sale. 
The name commemorates Dr. E. Palmer, one of the foremost of 
Mexican botanical explorers. 
109. Sedum compressum Rose (fig. 135). 
5. compressum Rose in "Contrib. U.S. Nat. Herb.," 12, 440, 1909. 
Illustration. — Loc. cit., pi. 80 (photo). 
, Closely allied to the better known 5. Palmeri, and very like it 
in habit and flower, but recognizable by its acute or apiculate leaves. 
The sepals also are acute (not blunt as in Palmeri), the flowers larger 
and the mature and fading leaves are often flushed with red, which 
never happens in the more glaucous S. Palmeri. The flowers are of 
the same brilliant orange colour. 
Description. — Evergreen perennial, smooth and glaucous. Stems sprawling, 
ascending or erect, about 6 inches high, bare save near the top, often rooting 
when prostrate, round, smooth, marked with leaf-scars. Leaves oblanceolate- 
trapezoidal, about i by f inch, broadest f way up, sessile, acute or apiculate, 
fleshy, flat on face, convex on back, glaucous, edges often beaded, forming a 
loose rosette, older ones oft^n flushed red. Flower-stem slender, apparently 
terminal, afterwards lateral, i to 2 inches long, with smaller leaves. Inflorescence 
a 2- to 3-branched cyme, branches secund, at first drooping, afterwards erect. Buds 
narrow, with adpressed sepals. Flowers showy, orange, f inch across, the lower 
stalked, the upper sessile. Sepals unequal, ultimately deflexed, linear-lanceolate 
to ovate, yellowish green, flat on face, convex on back, separate almost to the 
base. Petals patent, later deflexed, ovate- lanceolate, acute, equalling or ex- 
ceeding the longest sepal. Stamens spreading, orange, nearly equalling the 
petals. Scales very small, squarish, yellow. Carpels orange, slender, at first 
erect, later slightly spreading, equalling the stamens, styles long, very slender. 
Flowers January-March (gentle heat) ; April-May (cold frame). 
One of the hardiest of Mexican Sedums ; at Dublin survived in the 
open the very severe winter of 1916-7. 
Habitat. — Tamaulipas, Mexico. 
Received from Washington, and also (unnamed, mixed with 
S. Palmeri) from New York. 
110. Sedum variicolor Praeger (figs. 136, 137). 
S. variicolor Praeger in Journ. of Bot., 57, 54, 1919. 
A rather handsome, smallish Chinese perennial, unlike any other 
species in cultivation. To be recognized by the perennial growth of 
its stout, short, erect or widely divergent stems, its flat, entire, oblong- 
