PURSLANE FAMILY ' 479 



Locs. — Preston I'eak. UnwtU, June, 1884; Sliaekleford Canon, Jcpaon 2817; Log Lake, But- 

 ler 1527; Highland Mine, Butler 960; Caflon Creek, Trinity Co., Eastwood. 



The two following varieties occur very near the California boundary. Var. purdyi Jepson 

 n. var. Leaves orbicular-oblanceolate, very short; bracts elliptic, obtuse. (Folia orbiculata- 

 oblanceolata brevissinia ; bracteae ellipticae obtusae.) — Kerby, Josephine Co., Ore., aec. Purdy. 

 Var. howellii Jepson n. comb. Leaves with crisped narrowly membranous edges. — Southwest- 

 ern Oregon (Josephine Co., Howell, east to Grizzly Butte, Jackson Co., aec. Purdy). 



Eefs. — Lewisia cotyledon Eob. in Gray, Syn. Fl. 1': 268 (1897). Calandrinia cotyledon 

 Wats. Proc. Am. Acad. 20: 355 (1885), type loc. head of Illinois River, Siskiyou Mts., Howell. 

 Ureobroma cotyledon Howell, Erythea, 1: 32 (1893). Var. purdyi Jepson. Lewisia purdyi 

 Jepson of the gardens. Var. howellii Jepson. Lexcisia howellii Rob. 1. c. Calandrinia 

 howellii Wats. 1. c. 23: 262 (1887), type loc. Deer Creek Mts., Josephine Co., Ore., Howell. 



7. L. kelloggii K. Brandegee. Flowers and leaves densely crowded on the 

 iTown of a thick Heshy taproot; scapes very short, 3 to 7 lines long, jointed at 

 the base, these and the petioles with loose transversely wrinkled whitish epi- 

 dermis; leaves spatnlate or obovate, obtuse, mostly notched at apex, 3 to 5 line.s 

 long, drawn down to a petiole as long or twice as long; sepals 4 (or 6), oblong 

 or oblong-lanceolate, acute, minutely glandular-toothed, 3 to 4 lines long; 

 petals 8 to 11, white, 2 to 3 times as long as the sepals; stamens 15 to 26 (or 

 as few as "12") ; style-branches 5 or "4"; capsule thin-walled, separating in 

 a circumscissile manner from the receptacle at base, then splitting upwards 

 into 2 (or "4 or 5") valves. 



Northern Sierra Navada, 4500 to 6000 feet, in sand on granite ridges or 

 domes. On El Capitan, and doubtless generally, the plants barely push up through 

 the granite sand, and the flowers open directly out on the surface of the sand, 

 the cluster of rotately-spreading corollas forming a rosette which is very 

 beautiful. Counts of flower parts were made by us on El Capitan in 1911. 

 The sepals varied from 4 to 6, the petals from 7 to 11, and the stamens from 

 16 to 26. The style-branches were uniformly 5. The flowers do not disjoint 

 from the plant in drying. 



Locs. — American Valley, E. M. Au.itin ; Big Mdws., P. M. Austin; Cisco, Kcllogei ; crown 

 of El Capitan, Yosemite Valley, Jepson 4357. 



Ref. — Lewisia kellouoii K. Brandegee, Proc. Cal. Acad. ser. 2, 4: 88, pi. 4 (1893), type 

 loc. Cisco, Kellogg. 



8. L. brachycalyx Engelm. Scapes rather short, rising from a thickened 

 caudex, surpassed hy tlie moderately fleshy leaves; leaves in a spreading 

 rosette, spatnlate or oblanceolate. 1 to 4 inches long; sepals 4, ovate, acute, 

 entire, 3 to 4 lines long; petals 5 to 9, white, 14 to 1 incli long: stamens 10 

 to 15 ; style-branches 5 to 7. 



Wet meadows, San Bernardino Mts.. 6700 feet. I'tah, Arizona and Xew 

 Mexico. 



Loc. — Bear Valley, San Bernardino Mts., Parish 2337, the only known station in Cal. 

 Refs. — Lewisia brachycalyx Engelm.; Gray, Proc. Am. Acad. 7: 400 (1868), type spms. 

 from Utah, New Me.\. & Ariz. Oreobroma brachycalyx Howell, Erythea, 1: 31 (1893). 



9. L. rediviva Pursh. Bitter Root. Scapes from a thick caudex crown- 

 ing a stout root, % to 2 inches high, jointed near the middle and bearing an 

 involucral whorl of 5 or 7 scarious subulate bracts; leaves linear, thick. 1 

 inch long; sepals 6 to 8 ; petals 13 to 15 (or "16"), pink, bright rose or white, 

 % to 1 inch long, spreading rotately; stamens 40 to 47; filaments united at 

 base; style-branches 6 to 8. 



California, north to British Columbia and east to the Rocky Mts. Flowers 

 disjointing readily at the middle of the scapes on drying. Apr. 



Locs. — Coast Ranges: Mt. Pinos, Hall 6545; Santa Lucia Mts.; Pinnacles west of Hollister, 

 aec. Pietcrs; Mt. Hamilton (Erythea. 1: 85); Mt. Diablo, Jepson 26411; Mt. Tamalpais, il . L. 

 Hutchinson ; near Sonoma, Brewer 976; Big Caiion, Howell Mt., F. G. Hills in litt.; Kelsey- 

 ville, Irtcin ; Big Valley, Modoe Co., M. S. Baler. Southern California: Lytle Caiion, San 

 Gabriel Mts., Hall \H\\: Bear Valley, San Bernardino Mts. (Zoe, 4: 162). 



