CRUCIFER^. 263 



Proc. Am. Acad. vi. 520 (1865). Biennial, erect, sparingly and virgately 

 branching, 1 — 5 ft. high, pubescent or glabrous: radical leaves oblanceo- 

 late or spatulate, pinnatifid or toothed; cauline narrow, sagittate and 

 clasping, entire or toothed: fl. in long dense racemes: petals narrowly 

 linear, white, 3 — 4 lines long; pod ;^4 — 1 in. long, acuminate with the 

 slender style, ascending on short pedicels. — In the Mono district and 

 northward along our eastern borders ; perhaps also on the upper 

 Sacramento. 



3. T. Leinmoni, Greene, W. Am. Sc. iii. 156 (1887). Annual, stout, 

 3 — 6 ft. liigli, glabrous and glaucous: lower leaves 3 — 6 in. long, including 

 a short petiole, 3 in. broad, coarsely and angularly lobed below, repand- 

 toothed above ; upper lanceolate, nearly entire, sessile by a narrow base : 

 racemes 1 ft. long, rather loose: petals whitish, 3 lines long, exceeding 

 the lilac-purple spreading sepals: stamens exserted: pods 2 in. long, 

 acuminate, slender, somewhat torulose, not stipitate, ascending, on pedi- 

 cels of 1t-2 lines. — Fields of San Luis Obispo Co., Lemmoii; also 

 abundant among growing grain near Tracy on the lower San Joaquin. 



4. T. proceruiii, Greene. Brewer in Gray, Proc. Am. Acad. vi. 519 



(1865), under Sireptanlhiis; Wats. Bot. King, 27, under Caulanthus, 

 Annual, stoutish, branched from near the base, 3 — 7 ft. high, glabrous 

 except at base: lower leaves petiolate, coarsely pinnatifid; upper lanceo- 

 late, sessile, acuminate: racemes long and lax: fi. greenish or yellowish 

 white, 4 — 5 lines long, on ascending pedicels half as long: pod very 

 slender, terete, 3 — 5 in. long, less than a line wide, acuminate, erect or 

 somewhat spreading. — In fields along the northern and eastern base of 

 Mt. Diablo and southward in the same range. 



5. T. flavesceus, Wats. Bot. King, 25(1871). Strepianlhusjiavescens, 

 Torr. Pac. R. Rep. iv. 65 (1857), not Hook. Stoutish, or rather slender, 

 sparsely pilose-hispid below : lower leaves elongated, petiolate, sinuately 

 toothed; upper entire, sessile, not auricled: raceme long and lax: fl. 

 yellowish or rarely purplish, 4 — 5 lines long: sepals narrow and with 

 the pedicels hispidulous: petals long-exserted, with linear and narrow 

 claw; the blade dilated: pod 1^2 in. long, nearly terete, sparsely hispidu- 

 lous, erect or somewhat spreading. — Very common in fields of the lower 

 Sacramento, east and north of Vacaville, Jepson; originally from near 

 Benicia, Bigeloir. 



6. T. Hookeri. Sireptaidkns flarescens, Hook. Ic. t. 44 (1836). 

 Size, habit and whole aspect of the preceding, but lower leaves often 

 pinnatifid, though as often sinuate-toothed; inflorescence the same, also 

 size and color of fl., but sepals broader, less spreading, glabrous: petals 

 with a rather broad claw and relatively narrow blade : pods 2 in. long, 

 slender, terete, erect. — Common in the Mt. Diablo Range, especially in 



