150 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Description. — A glabrous evergreen sub-shrub about a foot high, much 

 branched, branches ascending. Stem smooth, round, bare and grey below, 

 leafy and rough above. Leaves alternate, green, paler beneath, fleshy, spathu- 

 late, with a conspicuous blunt notch at apex, tapering to a short petiole, slightly 

 spurred, J to i inch long by J to f inch broad. Inflorescence terminaA, 1-2 inches 

 across, very leafy, of 2-4 simple or forked scorpioid branches with short-stalked 

 flowers in the forks, bracts spathulate, not notched. Buds lanceolate, blunt. 

 Flowers f inch across, sessile except the lowest, 5-parted, not opening \videly. 

 Sepals very unequal, green, fleshy, oblong-spathulate, blunt, resembling the 

 uppermost bracts, slightly spurred. Petals spreading, white with a red base, 

 oblong-lanceolate, blunt, shortly apiculate, i^ times the sepals, with a green 

 keel on the upper half. Stamens spreading, shorter than the petals, filaments 

 red below, wliite above, anthers red. Scales wedge-shaped, orange longer than 

 broad. Carpels erect, red, shorter than the stamens, tapering into long white 

 styles. 



Flowers June- July (gentle heat), August-September (cold frame 

 and in the open) . Has proved hardy at DubHn ; nearly hardy at 

 Waltham Cross (E. A. Bowles). 



Habitat. — San Luis Potosi, Mexico. 



Received from Washington and New York, and also (under the 

 name of anopetalum) from Rev. R. H. Wilmot; and Mr. E. A. Bowles 

 has had it for some years at Waltham Cross. It was also formerly in 

 cultivation at Kew, as shown by an excellent coloured drawing (labelled 

 5. oxypetalum) by Mrs. Bernard, with notes by J. D. Hooker and 

 W. Watson, preserved in the Kew Herbarium. 



Apparently irregular as regards the number of its carpels. Hemsley 

 says 6 and Rose 8. In my plants, received from three different 

 sources (though possibly all had a common origin), they are 5. 



The name has reference to the notch which occupies the apex 

 of the leaf. 



60. Sedum Adolphi Hamet (fig. 80). 



S. Adolphi Hamet in Noiizblatt Bot. Gart. Berlin, 5, 277, 1912. 



A stout, very fleshy, Mexican evergreen perennial resembling in 

 habit and leaf 5. Treleasei Rose, but easily distinguished by its thinner, 

 firmer leaves, which are yellowish with a reddish flush (not densely 

 glaucous-pruinose), and its larger white (not yellow) flowers, borne 

 on long pedicels. Less nearly related to 5. allanioides Rose and 

 S. pachyphyllum Rose, both of which have very blunt terete (not 

 flattened) leaves. 



Description. — A loosely bushy, very fleshy, glabrous evergreen perennial. 

 Roots fibrous. Stems with wide-spreading branches, ascending or sprawling, 

 or tortuous when old, smooth, round, about J inch thick, leafy ; flowering 

 branches lateral, arising from one of the uppermost leaf-axils, more slender 

 than the barren branches, 3-5 inches long, leafy. Leaves alternate, those of 

 barren shoots rather crowded, set at right angles to the stem, curving upwards, 

 very fleshy, firm, broadly lanceolate or oblanceolate, bluntly pointed or sub- 

 acute at apex, narrowing below, sessile, flat on face, about ij inch long, f inch 

 broad, J inch thick, glabrous, yellowish green with reddish margins ; those of 

 the flowering shoots similar Ijut smaller, about J inch long by i inch broad. 

 Inflorescence compact, hemispherical, about 2 inches across, of several very short 

 branches bearing long pedicels. Flowers f inch across, white, starry, on slender, 

 pinkish pedicels J inch to | inch long. Buds slender, bulged f way up, where 

 the stamens are situated. Calyx small, about J inch long, divided about half- 



