CRUCIFEK^. 257 



merely rudimentary blade; in this respect differing only in degree from 

 the following in all of which the claw is the broader and principal part 

 of the petal. 



2. S. inllatas, Greene. Wats. Proc. Am. Acad. xvii. 364 (1882), under 

 Caulaiilhus. Annual, erect, stout, the mostly simple stem fistulous and 

 inflated above the middle, 1—2 ft. high, sparingly hispid or glabrous: 

 leaves ovate to oblong, all sessile and auriculate, acutish, entire, 1 — 3 in. 

 long: fi. large, i^urple; the glabrous sepals somewhat saccate at base, 

 3 — 4 lines long; the petals with broad claw and ligulate blade: pods 

 sulbterete, 3 — 4 in. long, on ascending pedicels of 2 — 4 lines: stigma 

 sessile, deeply bifid. — On the Mohave Desert; but also along the railway 

 in Kern Co., near Bakersfield, etc., where it may have been accidentally 

 introduced. 



3. S. Coulteri, Gray; Wats. Bot. King, 27 (1871); Wats. 1. c, under 

 Caulanllius. Erect, mostly 3--5 ft. high, sparingly branched above, 

 more or less hispid: radical leaves broadly spatulate, sinuate-toothed; 

 cauline oblong-lanceolate, clasping with cordate base, the uppermost 

 entire: sepals 3 — 5 lines long, acute, hispid: pod straight, subterete, 

 3 — 4 m. long, 1% lines broad, pendent upon the hispid pedicel, beaked 

 by the stout style; stigma 2-lobed. — Very common on the plains below 

 Fresno, near Tulare, Bakersfield, etc., associated with n. 1, but rangmg 

 further southward. Apr. 



* * Sepals erect or connivent; stamens often in. 3 unequal pairs; pods 



co)iipressed (subterete in n. 5). — Subgenus Euclisia, Nutt. 



-)— Calyx regular; corolla cruciform or nearly so; stamens all 



distinct ( except in n. 5). 



4. S. heterophyllus, Nutt.; T. & G. Fl. i. 77 (1838). Size and habit 

 of n. 3; hispid below, glabrous above, not glaucous: radical leaves 

 irregularly pinnatifid, lower cauline similar, but the uppermost narrowly 

 lanceolate and from remotely toothed to entire, sagittate-clasi^ing: fl. 

 pendulous: sepals dark purple: petals purple with whitish undulate 

 margins: pods 3- 5 in. long, pendulous, compressed, narrow: seeds i^ 

 line long, narrowly winged. —Mountains of Kern Co., and southward. 



5. S. Parryi. Stoutish, simple or with few branches 1 — 3 ft. high, 

 glabrous except a sparse hispidulous pubescence on the veins of the 

 radical leaves, and at the base of the stem, pale and glaucous throughout: 

 lowest leaves linear-oblong, 2 in. long, salientLy toothed; cauline lanceo- 

 late, sagittate, entire: raceme long and loose: fl. % ^^- long? the somewhat 

 shorter deflexed pedicels rather densely hirsutulous: calyx dark purple 

 in the bud, fading to flesh-purple in fl.; the well exserted strongly 

 crisped petals white, with dark purple veins: stamens in 3 unequal 

 pairs, the filaments united for three-fourths of their length in the longer 



