134 PORTULACACEAE 



paniculate, several- to many-flowered, the branches with gland-toothed bracts ; flowers bright 

 pink or white with pink lines, the pedicels slender ; sepals broadly rounded, with prominent veins, 

 margin erose-dentate with dark glands ; petals 7-10, 6-10 mm. long ; stamens 5-6, shorter than the 

 petals ; ovules 5-7, sometimes 3 ; capsule ovate, but little surpassing the sepals ; seeds black, 

 shining, 1 . 5-2 mm. long. 



Rocky slopes, Transition and Canadian Zones; Cascade Mountains of British Columbia and Washington, 

 south to the mountains of northwestern California and to Fresno County in the Sierra Nevada, California. May- 

 July. 



Lewisia columbiana subsp. Congdonii (Rydb.) Ferris. (Oreobroma Congdoni Rydb. N. Amer. Fl. 21: 322. 

 1932.) Widely branching few-flowered panicles and long-petioied leaves, 6-15 cm. long. Mariposa County, Cali- 

 fornia. 



Lewisia columbiana subsp. rupicola (English) Ferris. (Lewisia rupicola English, Proc. Biol. Soc. Wash. 

 47: 190. 1934.) Panicles short, few-flowered; petals magenta, 12-13 mm. long. Saddle Mountain, Clatsop 

 County, Oregon, and Chehalis County, Washington. 



7. Lewisia pygmaea (A. Gray) Robinson. Alpine or Dwarf Lewisia. Fig. 1650. 



Talinum pygmaeum A. Gray, Amer. Journ. Sci. II. 33: 407. 1862. 

 Calandrinia Grayi Britt. Bull. Torrey Club 17: 312. 1890. 

 Lewisia pygmaea Robinson in A. Gray, Syn. Fl. N. Amer. I 1 : 268. 1897. 

 Lewisia e.rarticulata St. John, Research Stud. St. Coll. Wash. 1 : 59. 1929. 



Perennial with a rarely branched fusiform root bearing several stems. Basal leaves several, 



linear, obtuse to acute, with widened hyaline bases, 1 . 5-3 mm, wide, 3-6 cm. long ; stems usually 



reflexed in age ; 1 . 5-5 cm. long, with opposite lanceolate bracts above the middle, flowers 1-3 ; 



sepals truncate or rounded, sometimes apiculate, 4-5 mm. long, erose, sometimes repand-dentate, 



glandular at the apex of the teeth, the glands scarcely darkened, strongly veined, somewhat 



accrescent with age ; petals 5-8, white or rose pink, variable in length and width, 6-10 mm. long ; 



ovules 25-35 ; stamens 5-8 ; capsule 4-6 mm. long ; seeds 18-20, dark, shining. 



Rocky slopes, Hudsonian and Arctic- Alpine Zones; Cascade Mountains, Washington, to Mount Whitney, 

 Sierra Nevada, California, and east to Montana and New Mexico. Type locality: Rocky Mountains, Colorado. 

 July-Aug. 



Lewisia pygmaea var. aridorum Bartlett, Bot. Gaz. 44: 303. 1907. Root fusiform; stems few; sepals with 

 dark glands and petals glandular-dentate at the apex, white, often rose pink. Mount Adams, Washington. 



Lewisia pygmaea subsp. glandulosa (Rydb.) Ferris. (Oreobroma glandulosum Rydb. N. Amer. Fl. 21 : 

 325. 1932.) Taproot thick; caudex short, 2-3 cm. broad; stems many; sepals sharply dentate with conspicuous 

 dark glands on trie marginal teeth; petals white or white with pink lines, 6-9 mm. long. Arctic-Alpine Zone, 

 Sierra Nevada from Tuolumne County to Tulare County, California. 



Lewisia pygmaea subsp. longipetala (Piper) Ferris. (Oreobroma longipetalum Piper, Contr. U.S. Nat. 

 Herb. 16: 207. 1913.) Taproot thick, caudex short; stems many; sepals with conspicuous dark glands; petals 

 rose red, 11-18 mm. long with scattered dark glandular teeth on the margin. Sierra Nevada, vicinity of Truckee, 

 California. 



8. Lewisia nevadensis (A. Gray) Robinson. Nevada Lewisia. Fig. 1651. 



Calandrinia nevadensis A. Gray, Proc. Amer. Acad. 8: 623. 1873. 

 Claytonia Grayiana Kuntze, Rev. Gen. PI. 57. 1891. 



Lewisia nevadensis Robinson in A. Gray, Syn. Fl. N. Amer. I 1 : 268. 1897. 

 Lewisia bernardina Davidson, Bull. S. Calif. Acad. 20: 51. 1921. 



Perennial with a conical or globose often branched fleshy root, 1 cm. thick and 1-2.5 cm. 



long. Leaves 5-15, linear to linear-lanceolate, 3-9 cm. long; stems several, partly subterranean, 



shorter than the leaves and usually recurved in fruit, with 2 lanceolate hyaline bracts 6-18 mm. 



long below the middle ; flowers 1 or rarely 2; sepals broadly ovate, abruptly acute, 5-10 mm. long, 



entire or_ often inconspicuously repand-dentate, the veins not prominent in age; petals white, 



6-10, variable in length and width in the same flower, 9-15 mm. long; stamens 6-12; stigmas 3-6; 



ovules 40-60 ; capsule ovoid, thin-walled, 5-10 mm. long ; seeds many, black and shining. 



Wet gravelly places or meadows, Transition to Canadian Zones and rarely in Hudsonian Zone; Washington 

 south through the mountains of Oregon to the Sierra Nevada and the San Bernardino Mountains, California, east 

 to Montana and Nevada. Type locality: East Humboldt Mountains, Nevada. June-Aug. 



Lewisia minima A. Nels. in Coult. & Nels. Man. Bot. Rocky Mts. 179. 1909. A closely related form 

 having smaller flowers and the acute sepals often irregularly repand-dentate, found in the Wallowa Mountains, 

 Oregon. 



9. Lewisia sierrae Ferris. Sierra Lewisia. Fig. 1652. 



Perennial with a fleshy fusiform root and short caudex. Leaves several, basal, spreading or 

 reflexed, 2.5-3.5 cm. long, the scarious winged petioles wider than the dark green linear blades; 

 stems 13-25 mm. high, often sharply reflexed, usually reddish tinged, about as many as the leaves ; 

 inflorescence 1-3-flowered, the subtending cauline leaves 3, sometimes 2, bract-like, lanceolate, 

 scarious, reddish tinged; pedicels 1.5-7 mm. long; bracts more or less broadly ovate, acute, 

 longer than wide, the margin entire or obscurely repand or repand-dentate, not prominently veiny 

 with age; petals 6, pink or rose, 3.5-4.8 mm. long, broadly or narrowly obovate and variable in 

 length in the same flower; stamens 5-7, shorter than the petals; ovary 1.5-1.6 mm. long, stigma 

 lobes 3, one-third the length of the style; ovules 22-25; capsule ovate, 2.5-3 mm. high; seeds 

 18-20, shining, faintly rugulose, 0.5 mm. broad. 



Radix fusiformis; folia linearia; inflorescentia 1-3-flora; bracteae et sepala integra vel 

 repanda non glanduloso-dentata ; petala rosea; semina 18-20. 



In sand or gravel above timber line, Arctic-Alpine Zone; Sierra Nevada from Tuolumne County to Tulare 

 County, California. Type collected at Martha Lake, headwaters of South Fork of the San Joaquin River, alt. 

 10,900 feet, Fresno County, California, Ferris & Lorraine 9165 (no. 234110 Dudley Herbarium). July-Aug. 



