12 EANUNCULACE^. ^^^^Zl 



petioled,3-t-ternate; leaflets approximate, Pe^iol-il^*^! ^^S^lfe S' 

 rounded and lobed at the apex, rugpse-veiny beneath : P?;° f « "X 'eSals 

 roW, its short erect branches few-flowered : flowers ^'ZZ^^fJf'^^t- 

 OYkie : stanvens 10-20, on slender filaments ; anthers oWo»g' ^i^"?fJ^i?to a 

 ed:achenS about 8, nearly sessile, 2 ines long, oy™<^,'. HP*"°| '''^H 

 straight beak, thickiwalled, 2-edged. with 4 o^ 5'°^*'"^ »^/ fiffin^ th6 

 rounded ridges on each aide: seed ovoid, pointed at. one end, filling the 

 acheiie. Klickitat Co, Washington to Brit, Columbia and Wyoming. 

 T, oocidentale Gray^Proc. Am._ Acad. ^^dii, 272. ^f^m riende^_l-3^eet 



in 



high; leaves 2-4-ternate., the lowermost petioled; leaflets thin, --10 ^e, 

 long, 3-9-lobedatthe summit, sparingly glandular-puberulent beneath 

 flowers dicEcious, rarely polygamous, noddmg, on very blender pedicels 

 an ample open panicle : filaments purphsh, slender; anthers linear^i^^" 

 date : achenes 1-10 in each head, lanceolate or somewhat fjilcate, 4-7-hne8 

 long, tapering, sbelow into, a short stipe, and above into a long pne-sided 

 curved beak, acutely 8-10 ribbed. Along streams, -and moist shadyiplacea, 

 Brit. Columbia to California, west of the Cascade Mountains. 



4 MYOSURUS Dillenius Giess. 106, t. 4. L. Gen. n. 394. 

 Little annuals with linear or lin ear- spatu late entire leaves, and 

 solitary flowers on simple seapes. Sepals 5 or 6, spurred at base. 

 Petals as many as sepals, on long claws, with a pit at the summit. 

 Stamens 6-20. Achenes with a prominent costa terminating in an 

 erect or more or less spreading beak, numerous on a slender or 

 conical receptacle. Ovule suspended. 



M. minimus L. Sp. i, 284. Leaves linear : scapes 1-4 inches high, about 

 equaling the leaves ; receptacle in fruit an inch or more high : achenes 

 quadrate with a broad back, truncate at the apex ; beak short, appressed: 

 seed oval. In wet places, Willamette valley to California and the Atlantic 

 States and Europe. 



M. apetalns Gay Hist. Chil. Bot. i, 31, t. 1, fig. 1. Scapes 1-2 ihche? 

 high, usually spreading, but little surpassing the linear leaves ; petals often 

 wanting : spike of achenes 3.^10 lines long, ovoid-oblong and more or less 

 squarose, or cylindrical : achenes oblong, thin-walled, with narrow, prom- 

 inently carinate back prolonged into a spreading or ascending beak ; seed 

 oblong. In alkaline places, California to Brit, Columbia east of the Cascade 

 Mountains : also Chili. 



M. leplnrns. M. ajietalus var. leptiirus, Gray, BuV. Torr. Club, xiii,-lS. 

 Scapes in iiniitS-O inches high, erect, surpassing the linear-spatulate leaves : 

 rece^^cle in fniit8T24 lines. Wgh'^^ichjenes with^broad,''di§tJi6ictly, carjhate 

 back, and short, appressed beak : seed elongated-oblong. Common in wet 

 places, from California to Brit. Columbia and the Rocky Mountains. 



M. sessilis Watson Proc. Am. Acad, xvii, 362. Scapes very short or 

 none : fruiting heads several, crowded, much shorter than the leaves : rec- 

 eptacle short and thick, often sessile, 1-6 lines long by 1-2 lines thick at 

 base ; achenes oval, scarioUs-utricular, with narrow salient keel, and subu- 

 late, erect beak : seed short-oval. A rare species, the only locality known, 

 lieing an alkaline flat seven miles south of Arlington Oregon. 



Tribe S. Rawnculeas, DC. Sepals imbricated in the bud. Pistih 

 numerous, rarely few, l-ovuled, becoming achenes. Ovule ascending. 

 Herbs with alternate cauline leaves 



5 TRAUTVETTERIA Fischer & Meyer Ind. Sem. 1835, 22. 



Herbs with palmately lobed alternate leaves, and small flowers 

 in terminal corymbose panicles. Sepals usually 4, concave, petal- 



