470 



POETTLACACEAE 



Wet or swampy meadows or moist stream borders : Sierra Nevada, 4000 to 

 9000 feet, and North Coast Ranges. North to Alaska. 



Locs.-Sierra Nevada: Gwe^horn Range. Hall * Babrorf- 5051; Golden Trout Creek 

 Jepson 4932; Cottonwood Creek. Inyo Co., Jepson 5075; Pme Eidge, Fresno ^o »«(( .f 

 cSU 106 Tuolumne Mdws.. Jepson 3242; Bloody Canon. Mono ^'^-^ ''^P.^^V R J^^^Q 

 5 or 6, the stamens as many) ; Spur, Alpine Co., Hansen; Blue Canon, Harnct TTaller 1359, 

 Truckee So»«<>- PrattviUe, Brande^ee; Ft. Bidwell. Manning 115. Coast Ranges: Snow Mt., 

 IZtle^ee m. Finos! Hall 6650. Southern California: Tamarack Valley. Mt. San .Taemto, 

 Hall 2.362; Bear Valley, San Bernardino Mts.. Pansk. ^^^^_^^^^,^^^ ^^^^„^^^^ „^^^ ^ j,,. 



Index Kew. Sup. 1: 282 (1901). Clay- 

 tonia chamissoi Ledeb. in Spreng. Sys. 

 Veg. 1: 790 (1825), type loc. Aleutian 

 Islands; Gov. Contrib.'U. S. Nat. Herb. 4: 

 72 (1893); Holzinger, PI. World, 4: 41 

 (1901). C. chamissonis Esch. Linnaea 6: 

 562 (1831). Montia chamissonis Greene, 

 Fl. Fr. 180 (1891); Jepson, Fl. W. Mid. 

 Cal. ed. 2, 161 (1911). Cninorallis chamis- 

 sonis Rydb. Bull. Torr. Club, 33: 139 

 (1906). " 



7. M. perfoliata Howell. Miner's 



Lettuce. (Fiji. 93.) Annual; stems 

 several, erect or diffuse, 4 to 10 

 (or 16) inches high; basal leaves 

 rhomboidal or deltoid to ovate or 

 lanceolate or the earliest narrowly 

 linear, 1/2 to 2 inches long, long- 

 petioled; cauline pair completely 

 united into a round and entire or 

 angulately 2-lobed disk ^'o to 2 (or 

 4) inches broad; racemes more or 

 less interrupted (the flowers in 2s 

 or 3s or fascicles), variable in 

 length, sessile or on peduncles 1/4 

 to IVi; inches long, or the flowers 

 glome'rate on the disk in a sessile 

 cluster; pedicels 1 to 5 lines long, 

 rarely % inch; sepals roundish. 1 

 to 2 lines long; petals white, IVi 

 to 11/2 times length of sepals. 



Mostly in the shade of oaks and 

 other trees throughout California, 

 also common in orchards and vine- 

 vards: Coast Ranges (mostly val- 

 leys and lower foothills) ; Great 

 Valley; Sierra Nevada (mostly 

 cauoii valleys and foothills, but 

 ranging to middle altitudes) ; 

 Southern California ("common in 

 the vallevs and ascending the 

 mountains" to 7000 feet, becommg 

 exiguous at the upper limit.'' — 

 Fig. 93. Montia PERFOLIATA Howell, o, a large Parish). Extends north to British 

 plant drawn one-third the natural size; b, (["olumbia and SOUth into Lower Cal- 

 flower, X 1. The plants vary greatly in size ■,. ■ j^^so called Indian LettUCe 

 according to situation, often becoming very • /-,.i^i,.,„„ 



small or depauperate. and S.,ua« ( abbage. 



