PURSLANE FAIIILT 469 



M. DiCHOTOMA Howell. Erythea. 1 : 36 (1893). Similar to 1\I. linearis but smal- 

 ler in all its parts; diffuse or depressed, branching from the base and above. 



1 to 3 inches high; leaves linear, 1 inch long or less; flowers many and secund 

 in a dense terminal raceme; sepals 1 line long, the petals unequal, white, 

 slightly longer; seeds dull. 1/3 to 1/2 line broad. — Oregon and Washington. 

 Yreka ace. Bot. Cal. 2: 436. (Claytonia dkhotoma Nutt. ; T. & G. Fl. 1: 202,— 

 1838, type loc. mouth of the Willamette River, Nuttall.) 



4. M. diffusa Greene. Annual, diffusely branched from the base, 2 to 6 

 inches high; ciiuline leaves alternate, deltoid-ovate to ovate or the upper nar- 

 rowly ovate, acute, y^ to 1 inch long, the petiole nearly as long or longer; 

 racemes 2, 3, or 4 on a branch, opposite the upper leaves or terminal. 1 to IV2 

 inches long, each 4 to 7-flowered; petals emarginate, white or pink, equal, 



2 lines long, slightly exceeding the sepals; pedicels deflexed or divergently 

 spreading in fruit; seeds black, Vo line long, lineated, the lineations com- 

 posed of narrow transverse plates. 



Under pines in the coast region : ^Marin Co. to Humboldt Co. North to 

 Washington. Rare. 



Locs. — Mill Valley, Eastwood; San Rafael, Eenry Eduards in 1878; near Buck Mt., Van 

 Duzen River, Tracy 272.5. 



Refs.— Mo.\TL\ DIFFUSA Greene, Fl. Fr. 181 (1891); Jepson, Fl. W. Mid. Cal. 187 (1901). 

 Claytonia diffusa Nutt.; T. & G. Fl. 1: 202 (1838), type loe. Ft. Vancouver, Columbia River, 



Nuttall. 



5. M. parvifolia Greene. Flowering stems erect or slightly spreading, 

 whip-like or filiform and somewhat scape-like, 5 to 9 or 12 inches high, arising 

 from the lower axils of Sedum-like rosettes of leaves borne on short caudex- 

 like stems; these caudices also produce filiform surface runners; leaves of the 

 rosettes ovate to oblanceolate, acute, 3 to 7 (or 10) lines long, passing into 

 petioles as long or nearly ; leaves of the flowering stems reduced above, small 

 and bract-like (2 to 4 lines long), and bearing in their axils fleshy bulblets 

 which fall away readily, the plant perennial by these; flowers umbellately 

 racemose ; racemes 2 to 7-flowered ; sepals roundish, 1 line long, the petals 

 equal, white or pink, refuse, 3 to 5 lines long; capsule mostly 1-seeded ; seed 

 rather dull, with minute pits. 



Mossy surface of rocks and moist banks: Coast Ranges; Sierra Nevada from 

 Yosemite northward. Far north to Alaska, east to Montana. 



Locs. — Coast Ranges: Little Sur River. T. Brandegee (only known station in South Coast 

 Ranges); Mt. Tamalpais (Zoe, 4: 68); Sonoma Creek, M. S. Baker; Navarro, Edith Byxbee ; 

 Jarnigan's, Humboldt Co., Chesnut 4' Drew; Redwood Creek, Humboldt Co., Jepson 1961; 

 Humboldt Co., Tracy 2708 (near Buck Mt.), 3226 (Little River); Hupa Valley, Chandler 

 1261; Preston Peak, Klamath Range, Jepson 2880. Sierra Nevada, 4000 to 8200 ft.: Yose- 

 mite Park, Jepson 43.50 (Yosemite Falls), 3137 (Vernal Fall), 4576 (Kerrick Canon), 4575 

 (Stubblefield Canon) ; Little Chico Canon, B. M. Austin. 



Refs.— MoNTiA PARVIFOLIA Greene, Fl. Fr. 181 (1891) ; Jepson, Fl. W. Mid. Cal. 187 (1901). 

 Claytonia parvifolia Moq. in DC. Prodr. 3: 361 (1828), type loe. Nootka, Vancouver Island. 

 C. filicaulis Hook. Fl. Bor. Am. 1: 224, t. 72 (1834). Montia ohtusata Heller. Muhl. 2: 32 

 (1905), type loe. Shasta Retreat, Siskiyou Co., Eeller 7945. 



6. M. chamissoi Dur. & Jac. Toad-lily. Stems decumbent or ascending, 

 2 to 6 inches or 1 foot long, leafy to the top, rooting at the lower nodes; per- 

 ennial by means of little tuber-like bulblets prodticed at the end of slender 

 rminers; leaves opposite, oblanceolate to oblong-obovate, obtuse or acute at 

 apex, tapering into a petiole at base, i/o to 1 (or 2) inches long; racemes ax- 

 illary or terminal, 2 to 8-flowered, rarely 1-flowered. bractless except 1 or 2 

 small bracts at base; sepals orbicular, 1 line long, the petals white or pink, 

 elliptic, rounded at apex and entire, or sometimes refuse, 3 to 4 lines long; 

 capsule small ; seeds muriculafe-roughened. 



