16 C B U. C I F E E & , 



*Calyx not irregular. 



1. S. barbiger, Greene. Slender, 1—114 lt; - highi pubscent or gla- 

 brous; cauline leaves linear, entire, scarcely auriculate: fl. subsessile, 

 3 lines long: sepals greenish, the rather acuminate tips becoming 

 whitish-petaloid and recurved, the whole calyx commonly bristly-hairy, 

 but often glabrous: petals while: filaments dark purple, the three 

 pairs very unequal, the uppermost connate almost to the summit, their 

 anthers much reduced and seemingly sterile : pods 1 — 2 in. long, nar- 

 rowly linear, recurved. — In Napa Co., near St. Helena. 



2. S. suffriitesceiis, Greene. Perennial, suffrutescenl, the stout leafy 

 trunk 6 — 8 in high; flowering branches 1 — 2 ft. long: herbage glabrous, 

 glaucous: stem-leaves cuneate-obovate, coarsely serrate-toothed; floral 

 leaves round-cordate or more elongated: sepals purplish-green, their 

 tips not reflexed: one pair of filaments connate; all the anthers equal 

 and fertile.— Hood's Peak, Sonoma Co., Bioletli. 



++++ Calyx irregular, three sepals more or less connivent behind the upper 



petals, the fourth separated from these and somewhat deftexed; 



1 pair of filaments connate. 



3. S. niger, Greene. Branching loosely from near the base and above, 

 1 — 3 ft. high, glabrous, glaucous: leaves linear, 2 — 3 in. long, the lowest 

 with narrow pinnate gland-tipped lobes or teeth, the upper entire, auric- 

 ulate-clasping: racemes loose, flexuous: pedicels ascending, 1 in. long: 

 calyx 3 lines long, of a very dark metallic shining purple; sepals ovate-cymbi- 

 forni, the 3 upper slightly separated from the lowest, and connivent at 

 apex: blade of petals very slender, white: upper pair of filaments 

 connate almost throughout, their anthers small and sterile: pod 2 in. 

 long, erect or ascending, nearly straight: seed narrowly winged. — Hills 

 at Tiburon. 



4 S. albidus, Greene. Stouter than the last, equally glabrous and 

 glaucous, even the cauline leaves with callous-tipped prominent teeth, 

 the base sagittate-clasping: racemes not flexuous: pedicels short: 

 sepals ; 3 — 4 lines long, while, with purple base: petals % in. long, the 

 lamina ample, crisped, white, with purple veins: upper pair of filaments 

 united to the tip, their anthers small but polliniferous. — On hillsides not 

 far from San Jose. 



5. S. Mildredse, Greene. Slender, 1 — 1 % ft. high, more or less pilose- 

 hispid: lower leaves coarsely and sinuately toothed; cauline linear- 

 lanceolate, entire, clasping: racemes somewhat flexuous, not secund: 

 fl. small, very dark metallic-purple: petals with small, slenderly atten- 

 uate white-margined purple blade : upper pair of filaments almost wholly 

 united, their anthers mere rudiments closely approximate, the other 4 

 stamens much shorter and little unequal: pods 3 in. long, slender, 



