SEDUM. CRASSULACEJE. 213 



oblanceolate, acute rarely entire : 6-18 lines long : cyme sessile often an inch 

 or two in diameter: flowers on short naked pedicels, usually 4-merous 

 sepals short, oblong: petals 1-2 lines long linear-oblong: carpels becoming 

 3 lines long shortly beaked. In the high mountains Alaska to California. 



* * Flowers perfect, decandrous; secund upon the branches of a 

 forked cyme, mostly yellow : style filiform : leaves entire, very fleshy.- 



- Leaves broad and obtuse, narrowed toward the base: perennials 



S. spathulifolium Hook Fl. i, 227. Glabrous and sometimes mealy ; 

 stems ascending from a branched rooting caudex, 4-8 inches high, simple : 

 leaves obovate or spatulate, 6-10 lines long: branches of the cyme approxi- 

 mate : flowers on short pedicels or sessile, 6 lines long : petals yellow, lance- 

 olate, acute, twice longer than the ovate acute sepals and scarcely exceed- 

 ing the stamens and style. On rocks, etc., Brit Columbia to California. 

 Flowering in May. 



S. Oreganum Nutt. T. & G. Fl. i, 559. Glabrous, not glaucous, leaves 

 all scattered, cuneate, rounded at the summit: stems erect simple; from 

 a creeping branched caudex : cymes compound ; the flowers on very short 

 pedicels, petals yellow linear-lanceolate, acuminate 3-4 times the length of 

 the ovate-lanceolate acuminate sepals and about twice the length of the 

 stamens. On rocky banks along the Columbia river near the Cascades. 



S. divergens Watson Prpc. Am. Acad. xvii, 372. Stems rather stout, 

 2-1 inches high from a creeping-branched caudex: leaves broadly ovate or 

 obovate, sessile, 3-4 lines long : inflorescence close with short branches, flow- 

 ers yellow, the lanceolate petals thrice longer than the triangular-ovate 

 sepals and equalling the stamens : carpels united at base, widely divergent 

 a'-ove. Eastern slopes of the Cascade Mts. 



S. debile Watson Bot. King v, 102. Stems weak, 2-4 inches high, 

 from very slender running root stocks : leaves rounded or obovate, 1-3 lines 

 long: flowers on rather long pedicels in small cymes, 3 lines long, yellow: 

 petals lanceolate, acuminate, twice the length of the acute sepals and little 

 exceeding the stamens and styles. Southeastern Oregon to Nevada and 

 Utah 



S. divaricatum Watson Proc. Am. Acad. xvii, 372 Cespitose with 

 slender branching rootstock: the lower rosulate leaves oblanceolate or 

 acutish, roughish on the margin, 6 lines long or less, flowering stems 2-8 

 inches high, branches of the cymes once forked: flowers nearly sessile, 

 bright yellow, w r ith short lanceolate sepals and narrowly lanceolate, acumi- 

 nate petals: carpels united at base strongly divergent above. Eastern 

 L-regon and Washington. 



*- *- Leaves lanceolate to subulate, mostly acute. 

 ++ Perennials. 



S. Douglasii Hook. Fl. i, 228. Branching at base from a stout prolif- 

 erous root-stock : the rather stout stems 6-10 inches high : leaves lanceolate 

 or the lowest linear-subulate 6-12 lines long, smooth on the margins, flat 

 above, carinate beneath: flowers yellow, sessile, in an open cyme : petals 

 2-3 lines long, acuminate-lanceolate, twice the length of the ovate acumi- 

 nate sepals and exceeding the stamens : carpels united at base, strongly 

 divergent. Brit Columbia to Oregon west of the Cascade Range. 



S. uniflorum Stems rather slender, branching at the base, from a short 

 proliferous caudex, 4-8 inches his;h, leaves lanceolate; acuminate, flat above, 

 carinate beneath, 4-8 lines long: stems -earing numerous propagula and 

 terminated by a single flower: petals lanceolate; sepals a little longer than 

 the stamens/ On rocks along the Willamette and Columbia rivers near 

 Portland. 



