* Glabrous or ylaucous : stem-leaves broad and daspiiiy by a cordate or saylttate 

 base : a broad torus at the base of the ovary. 



1. S. cordatus, Nutt. Pereunial : stems simple, 1 to 2 feet hi<^h, rather stout: 

 leaves thick, usually repaiuUy tcjotheil toward the apex, the teeth often setosely 

 tipped; lower k-uve.s spatiihitu DViite or obovuto, the petioles Kpann;,'ly ciliato ; cau- 

 line leaves curdate to ubloiigor ovatedaiiceolate, obtuse or acute, with a broad round- 

 auricled base : sepals broad, colored, 3 to 4 lines long, somewhat obtuse, the petals 

 about half longer, greenish yellow to purple : pods broadly linear, 2 to 4 inches 

 long, 2 lines broad or more, nearly straight, lousely spreading : seeds broadly 

 winged. —Torr. k Gray, Fl. i. 77 ; Watson, Bot. King Exp. 19. 



Rare at high elevations in the Sierra Nevada, Ebbett's and Sonora Passes {Brewer) ; and east- 

 ward in the mountains ul' Nevada and Arizona to Colorado. 



2. S. tortUOSUS, Kellogg. Annual, 1 to 3 feet high, with slender virgate 

 branches : lower leaves oblong, narrowed to a winged base, 2 to 3 inches long, 

 repandly toothed ; the upper rounded, ^ to H inches in diameter, clasping by a 

 deep closed sinus, entire : llowers subsecund ; sepals broad, long-acuminate, yellow- 

 ish or purplish, 3 to G lines long, the purplish petals a little longer : pods 2 to 6 

 inches long, a line wide, falcately recurved : seeds narrowly winged or often wing- 

 less. — Proc. Calif. Acad. ii. 152, fig. 46. 



Common in the Sierra Nevada at 4,000 to 11,000 feet altitude, in dry sunny places, from the 

 Yosemite to Yuba Co. ami Mt. Shasta. 



3. S. BrCTVeri, Gray. Annual, branched from near the base, 1 to 2 feet high : 

 lowest leaves broadly oval or obovate, nearly sessile, dentate ; cauline leaves ovate 

 and clasping, the njiperniost lanceolate and acuminate, entire or denticulate : flowers 

 purple ; sepals acuminate, 2 to 3 lines long, somewhat pubescent or glabrous, the 

 petals half longer: pods 1| to 2^ inches long, less than a line wide, erect or as- 

 cending, straight or somewhat incurved : seeds not margined. — Proc. Calif. Acad, 

 iii. 101, & Proc. Am. Acad. vi. 184. 



In the Mt. Diablo Range, on dry summits of San Carlos Mountain and near the liead of Arroyo 

 del Puerto, Brewer. 



* * Glabrous : stem-leaves very narroivly linear: sepals very unequal. 



4. S. polygaloides, Gray. Annual : stems 1 to 2 feet high, virgate, with 

 simple brunches : stem-leaves 1 to 2 inches long, folded or involute and apparently 

 filiform : sepals yellow, the outer rounded and subcordate, 3 lines in diameter, 

 somewhat .scarious, the inner oblong-lanceolate, acuminate, about equalling the 

 puri)lo ))f'tals : pods 1 to U inches long, half a line wide, rellexed and somewhat 

 secund on very short pedicels, straight or nearly so, attenuate upward to the short 

 style: seeds narrowly winged. — Proc. Am. Acad. vi. 519. 



A rare and remarkable species ; lower leaves luiknown. On diy barren magnesian soil near 

 Jacksonville on the Tuolumne {Brewer), and on ilt. Bullion, Bolunder. 



* * * More or less hispid tvith simple hairs : flowers purple or red. 



5. S. glandulosus, Hook. Annual, more or less hispid with spreading hairs, 

 ^ to 2 feet high, branched : radical leaves spatulate, sinuately tootheil ; stem leaves 

 narrow to oblong-lanceolate, 1 to (5 inclu'S long, auriclod at ba.se, sparingly repand 

 or laciniately ilenticulato, the teeth with .somewhat thickened tips : jxtals bright 

 purplish-red, 6 to 8 lines long, half longer than the acutish sepals : pods 2 to 3 

 inches long, a line wide, ascending or spreading, straight or somewhat curved : 

 stigma sessile, dilated : seeds narrowly winged. — Ic. PI. t. 40 ; Bot. Beechey, 322. 



On dry hillsides from Clear Lake to San Luis Obispo. 



6. S. heterophyllus, Nult. Glabrous above, branching, 3 to 5 feet high : leaves 

 gash-pinnatilid, the stem-leaves sagittate : flowers pendulous ; sepals deep purple ; 



