STONE-CROP FAMILY 109 



2. S. douglasii Hook. Columbia Sedum. Stems 3 to 8 inches high; leaves 

 linear-lanceolate, more or less flattened, 5 to 11 lines long, I/2 to 1 line wide, the 

 much dilated base scarious-sheathing; inflorescence racemose, sparsely branched, 

 iy2 to 4 inches long; petals as in no. 1. 



Rocky places, 4500 to 5500 feet: Lassen and Modoc Cos. North to British 

 Columbia and Idaho. July- Aug. 



Locs. — Dixey Valley, Lassen Co., Nutting; Parker Creek, Modoc Co., Taylor & Bryant; Lake 

 City, Modoc Co., C. C. Bruce 2325 ; Goose Lake, hills east, E. M. Austin. 



Kefs. — Sedxjm DOtJGLASii Hook. Fl. Bor. Am. 1:228 (1834), type loc. Columbia Eiver valley, 

 Douglas; Jepson, Man. 451 (1925). 



3. S. stenopetalum Pursh. Explorers Sedum. Flowering stems erect, 3 to 

 TY2 inches high; leaves terete, green, 2 to 4 lines long, in close ovate clusters; cymes 

 rather close, sparsely branched; petals bright yellow, or at times with a dark mid- 

 vein, spreading, 3 to 4 lines long. 



Montane slopes, high easterly localities in the Sierra Nevada or mainly north 

 and east of its crest, 7000 to 10,000 feet : eastern Fresno Co.; Modoc and Siskiyou 

 Cos. North to Alberta, east to the Rocky Mts. July. 



Locs. — Mono Hot Sprs., Fresno Co., E. Ferguson 426; Mt. Bidwell, Jepson 7898; Twelve- 

 mile Creek, Modoc Co., Manning; Mt. Eddy, Alexander & Kellogg 323; Marble Mt., Jepson 2838. 

 Wyo. : Upper Basin, Yellowstone Park, Jepson 2525. 



Eefs. — Sedum stenopetax-um Pursh, Fl. 324 (1814), type from Clark's Eiver and Koos- 

 kooskie, Lewis; Jepson, Man. 451 (1925). 



4. S. niveum Dav. Ledge Sedum. Stems ascending or erect from a fistulous 

 creeping rootstock, 2 to 3l^ inches high; leaves elliptic or elliptic-obovate, mostly 

 rather crowded, 2 to 4 lines long; cjTtnes rather small; petals lanceolate to ovate- 

 lanceolate, white, the upper half of the midnerve pinkish, 2i/^ to 3i/^ lines long. 



Rocky slopes or ledges, 8000 to 9300 feet : San Bernardino Mts. July- Aug. 



Locs. — Lost Creek, Peirson 4951; Dollar Lake, Peirson 3293; creek east of Foxesee, Peir- 

 son 2298. 



Eef. — Sedxjm niveum Dav. Bull. S. Cal. Acad. 20:53 (1921), type loc. Sugar Loaf (n. slope), 

 San Bernardino Mts., B. Kessler 3430. 



5. S. spathulifolium Hook. Moss Sedum. Flowering stems erect, 4 to 8 

 inches high; leaves of the rosettes broadly spatulate, glaucous or occasionally 

 green, 5 to 10 lines long, 2i/^ to 3^/^ lines wide, the apex rounded, with a small acu- 

 mination; stem leaves smaller and oblongish; cyme dichotomously branched, 1 to 

 2 inches wide, somewhat less high; petals lanceolate, acuminate, widely spreading, 

 yellow or white, 3 to 4 lines long. 



Usually gregarious on shaded moss-covered rocks in the foothills, 200 to 5000 

 feet : San Gabriel and San Bernardino mountains ; Coast Ranges from the Santa 

 Cruz Mts. to Siskiyou Co. ; Sierra Nevada from Tulare Co. north. North to British 

 Columbia. May-June. It is in California the most widely distributed Crassula- 

 ceous species after Tillaea erecta. 



Locs. — S. Cal.: Mill Creek Canon, San Bernardino Mts., Jepson 5573; West Fork Eaton 

 Canon, Peirson 428; West Fork San Gabriel Eiver, Peirson 2472. Coast Eanges: Mt. Umunhum, 

 Santa Cruz Mts., H. E. Paries; Stanford, C. F. BaTcer 3198; Mt. Davidson, San Francisco, Jepson 

 10,598; Mt. Diablo, Jepson 7610; Berkeley Hills, Jepson; Mt. Tamalpais, Chesnut; Fairfax, 

 Newlon; Sonoma Canon, Kenwood, Jepson 10,017; White Sulphur Sprs., St. Helena, Chandler 

 7558; Cache Creek Canon, Yolo Co., C. F. Baler 3236; Hubbard sta., near main Eel Eiver, Jepson 

 1908; Orrick, Peirson 3957; Shasta Sprs., Siskiyou Co., Bosenbaum. Sierra Nevada: Vernal 

 Fall, Yosemite, Jepson 13,431; Italian Bar, Tuolumne Co., Jepson 6367; Bear Valley, Nevada 

 Co., Jepson 13,432. 



Eefs. — Sedum spathulifolium Hook. Fl. Bor. Am. 1:227 (1834), type loc. along the Colum- 

 bia Eiver, Douglas; Jepson, Fl. W. Mid. Cal. 265 (1901), ed. 2, 185 (1911), Man. 451 (1925). 

 S. yosemitense Britt. Bull. N. Y. Bot. Gard. 3:44 (1903), type loc. between Vernal and Nevada 

 Fails, Yosemite, Ball & BahcocTc. S. pruinosum Britt. N. Am. Fl. 22:72 (1905), type loc, Cres- 



