Part 1, 1905] CRASSUI^ACEAB 73 



62. Sedum yosemitense Britton, Bull. N. Y. Bot. Gard. 3 : 44. 1903. 



Perennial by rootstocks, very fleshy, stoloniferous. Basal leaves obovate-orbicular to 

 broadly obovate, 1 cm. long or less, 6-9 mm. wide, rounded at the apex, green, not glau- 

 cous, or scarcely so; flowering stems 1-1.5 dm. high, slender, their leaves spatulate-obo- 

 vate to oblong, obtuse, small ; cyme compound, 5 cm. broad or less, rather densely flow- 

 ered ; pedicels stout, 0.5-2.5 mm. long; cal3rx deeply cleft, its lobes ovate-laneeolate, acute 

 or acutish ; petals light-yellow, lanceolate, acuminate, 6-8 mm. long, twice as long as the 

 calyx or longer ; follicles somewhat divergent, tipped with filiform styles. 



Type locality : Between Vernal and Nevada Falls, Yosemite National Park, California. 

 Distribution ; Yosemite National Park. 



63. Sedum divergens S. Wats. Proc. Am. Acad. 17: 372. 1882. 



Perennial by rather slender branched rootstocks, glabrous, 1.5 dm. high or less. 

 Leaves obovate to orbicular-obovate, or the upper spatulate, obtuse, sessile, 5-8 mm, long, 

 those of sterile shoots, or all of them, opposite ; cymes rather compact, 5 cm. broad or less ; 

 flowers short-pedicelled ; calyx-segments triangular-ovate, nearly as wide as long, acutish ; 

 petals lanceolate, acute, yellow, about 6 mm. long, three to four times as long as the calyx, 

 about as long as the stamens ; follicles shorter than the petals, united below, widely diver- 

 gent, short-tipped. 



Type locality : Cascade mountains, Washington. 

 Distribution : Oregon, Washington and British Columbia. 



64. Sedum Leibergii Britton. 



Sedum divaricaturn S. Wats. Proc. Am. Acad. 17: 372. 1882. Not 5. divaricatum Ait. 1789. 



Perennial by rootstocks, glabrous, tufted, 2.5 dm. high or less; stems simple. Basal 

 leaves and those of rosettes oblanceolate to obovate-spatulate, obtuse or acutish, 1-1.5 cm. 

 long, those of the stem oblanceolate, those of the inflorescence oblong to lanceolate ; cyme 

 open, 5-10 cm. broad, its branches forked; flowers nearly or quite sessile; calys^-segments 

 lanceolate to triangular-ovate, acute, much shorter than the petals ; petals yellow, narrowly 

 lanceolate, acuminate, 7-9 mm. long ; follicles widely divergent from their united bases, 

 subulate-tipped. 



Type locality: Union County, Oregon. 



Distribution : Kastern Oregon and Washington and adjacent Idaho, 



65. Sedum Woodii Britton, sp. nov. 



Perennial by rootstocks or offsets, glabrous ; flowering stems ridged, rather stout, about 

 1 dm. high. Basal leaves and those of rosettes very broadly spatulate, obtuse, 1.5 cm. 

 long or less, 6-10 mm. wide, narrowed to a. sessile base, those of the flowering stems 

 alternate, narrowly spatulate or oblanceolate, 1 cm. long or less ; cyme-branches 2-forked, 

 5-8 cm. long; flowers very nearly sessile; calyx-lobes lanceolate, acutish; petals yellow, 

 lanceolate, acuminate, about 8 mm. long ; carpels spreading, acuminate, tipped by subulate 



styles. 



Oregon City, Oregon, A. Wood, 1866. 



66. Sedum diversifolium Rose, Bull. N. Y. Bot.- Gard. 3 : 44. 1903. 



Sterile branches short, with small ovate flattened pale roughened leaves. Flowering 

 branches elongated, weak, glabrous, with scattered leaves ; leaves 5-10 mm. long, turgid, 

 somewhat curved backward, pale-green, smooth; flowers terminal, solitary, short-peduncled, 

 inconspicuous; sepals 5, leaf-like, obtuse, 2-3 mm. long; petals pale-yellow, twice the 

 length of the sepals, ovate, acute, or even apiculate ; stamens 10, much shorter than the 

 petals. 



Type locality : State of Mexico, Mexico. 

 Distribution : Several localities in the State of Mexico. 



67. Sedum stoloniferum Gmel. Iter. 3 : 311. 1774. 



Perennial, glabrous, rooting from the nodes of prostrate shoots. Flowering stems 

 ascending or erect, 1 dm. long or more; leaves opposite, obovate-cuneate or rhombic. 



