240 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
A handsome form, the bright -yellow flowers contrasting well with 
the purple fohage. Received from Wisley and from Kew, and Mr. 
Clarence Elliott tells me he has it. 
Attempts to illustrate the species have been unfortunate. The 
figure in Gardeners* Chronicle, 1878, ii. 377, has the leaves of 5. oreganum, 
whilst the inflorescence is uncertain. That in Gartenflora, t. 741, 
is also wrong, though I am not sure what species it represents. 
112. Sedum yosemitense Britton (fig. 139). 
5. yosemitense Britton in Bull. New. York Bot. Gard., 3, 44, 1903. 
A mat-forming plant after the style of 5. spathuli folium Hooker, 
resembling it in its rosettes of leaves arising from short, horizontal, leaf- 
less axillary shoots ; but the leaves are fresh green, not glaucous as in 
typical spathuli folium, causing the plant to approach more nearly 
a small form of var. majus Praeger of the former species ; the leaves 
come near those of 5. oreganum Nuttall, but in their arrangement are 
different. The flowers are near those of spathuli folium, and have 
no resemblance to those of oreganum. 
Description. — A small, glabrous, evergreen perennial, forming a loose mat. 
Barren stems axillary, leafless and horizontal below, ending in a short, erect 
rooting rosette of leaves. Flowering stem from the centre of the rosette, erect, 
leafy, unbranched, 3 to 4 inches high, smooth, round. Leaves of rosettes alternate, 
sessile, ovate-spathulate, very blunt, mostly bluntly apiculate, flat, very fleshy, 
often suffused with red, i to | inch long by J to f inch wide ; those of the flower- 
ing shoots alternate, oblong or club-shaped, longer than the intemodes, shortly 
and bluntly spurred. Inflorescence terminal, flat, about inch across, of three 
forked branches with a flower in the primary fork, each flower subtended by a 
blunt linear or linear-spathulate leaf-like bract ; pedicels stout, shorter than the 
flowers, up to \ inch long on lowest flowers^ uppermost flowers sessile. Buds 
ovate-oblong, bluntly pointed, with short greenish ribs. Flowers ^ inch across. 
Calyx cup-shaped, over \ inch long, green, fleshy, the segments oblong, bluntly 
pointed, longer than the tube. Petals wide-spreading, free to the base, oblong- 
lanceolate, acute, bright yellow, grooved on face, over J inch long by over 
inch wide. Stamens spreading, a little shorter than the petals, filaments greenish, 
anthers bright yellow, attached close to the base of the petals. Scales minute, 
quadrate, retuse, yellow. Carpels slender, erect in flower, pale green, a little 
shorter than the stamens, spreading in fruit. 
Flowers May. 
Although my plants differ from Dr. Britton' s description of 
5. yosemitense in their flowers being bright yellow, not " pale yeUow," 
and the leaves being spathulate rather than " obovate-orbicular to 
broadly obovate " and J to f inch long instead of " i cm. or less," 
the essential portions of the description agree, and I have little doubt 
in retaining under this name my material, which I owe to the kindness 
of Prof. H. M. Hall, one of the original finders of the plant in the , 
Yosemite Valley, to which, as at present known, it is confined ; 
he sent it (as S. yosemitense) in June 1915, from Ledge Trail, Yosemite 
Valley, California. 
