119 



low; lower Ivs petioled, pubescent, 

 more or less lobed or pinnatifid, the up- 

 per glabrous, lanceolate or oblong, 

 acute or obtuseish, sessile and clasp- 

 ing at the base, entire or dentate; pedi- 

 eels spreading or ascending, often 2 

 cm long in fr; pods 3-5 cm long; 

 beak 8-10 mm Ion- 



Frequent in waysides and neglected 

 gardens. Ja-Ap. In favored places 

 often flowering rfearly throughout the 



Abrams, Fl LA 170. 

 Br Zoe 1:113, Cat. 

 Parish, Zoe, 1:57. 

 Davidson, Errthea 1:57, LA. 



r.ruz; Quad, tean Miguel Island. Wild 



BRA&TCA SINAPISTRUM Boiss 

 Parish, Zoe 1:57. 

 n - n ' rougrh wlth spreading hairs, 2-5 



120 



natifid, pinnately lobed or toothed the 

 lower 25-75 mm long; racemes short' 

 fls pale y, 4 mm broad; pet slightly ex- 

 ceeding the sep; sty shorf pods linear 

 8-15 mm long, about 1 5 mm wide' 

 strongly curved upward; pedicels 

 spreading or ascending. 



Frequent in low ground, about ponds 

 and on river bottoms. Variable in fol- 

 iage characters. 



Parry, bot obs Wyo 17. 



Roripa curvisiliqua Bessey. 



Abrams, Fl LA 172. 

 Variety LYRATUM S. Watson. 



Davidson, Erythea 2:178. LA Co. 



Lvs coarsely toothed, broad above, 

 narrowed toward the base. 



NASTURTIUM OBTUSUM Nuttall. 

 Variety SPHAEROCARPUN S. Watson. 



few smaller ones upon the rachis; up- 

 per Ivs often undivided, oblong or lan- 

 ceolate: pods somewhat torulose, 1-1 % 

 i long, more than a third occupied by 

 the stout 2-edgert Ixak; valves often 

 ribbed by the prominent nerves. 



"The charlock of the eastern U S and 

 Eu, where it is often a troublesome 

 weed in ^rainfieMs. Sparingly natural- 

 ized in So Cal." Watson,. Bot Cal 1:40. 



Sinapis arvensis Linnaeus. 

 Genu* NASTURTIUM R. Brown. 



Nearly or quite glabrous ann or per, 

 sometimes growing in water, mostly in 

 wet places- lvs toothed or pinnatifid or 

 pinnately divided: fls sm, w or y: sep 

 sprorr ling in anthesis: pet scarcely 

 clawed: stig capitate, nearly sessile: 

 pod linear or oblong, terete or nearly 

 so, valv-:s mostly 1-nerved: sds minute, 

 in ? rows in each cell: cotyledons ac- 

 cumbent. 



*Flowers white. 

 NASTURTIUM OFFICINALE R. Br. 



\V tercress. Aquatic, glabrous; sts 



iiing, floating o~ creeping, i ~coti v ig' 



frm the no^es; lvs odd-pinnate; lits 



3-11, roundish or oblong, nearly en- 



:; flow- 



the' length of The sepals; pods 1-S cm 

 long-, 2 mm wide, spreading and plight- 

 ly curved upward, on pedicels of about 

 tivn- ovi length. 



Pommon in streams. My-O. Eu, 

 widelv naturalized In Am. 



, Hort Kew ed 2. 4:110 



Erect or diffuse, glabrous or pubes- 

 cent, an or nearly bien or per herbs, 

 with pinnatifid, lobed or entire Iv.s ar-d 

 racemose w or w'ish fls: pet small or 

 rarely 0: sta often fewer than 6: silicies 

 oblong or obovate, flattened contrary to 

 the partition, more or less emar:<inately 

 winged at apex: valves keeled, dehis- 

 cent: sds 1 in each cell, flattened: cotyl- 

 edons incumbent or rarely accumbent. 

 LEPIDIUM ACUTIDENS Howell. 



Branching from the base, decumbent 

 or e$en ling, 10-20 cm long, pubescent 

 throughout with short spreading hairs; 

 lvs linear tapering at both ends, entire 

 or faintly and remotely denticulate, 2-5 

 cm long, about 2 mm wide; branches 

 fl'ing about 2-3 their length; racemes 

 rather loose; pedicels strongly flattened, 

 appressed to the st to near the middle, 

 then curving outward; pod strong* v 

 reticulated, sparsely pubescent, 1 mm 

 long including the acute teeth, about 3 

 mm broad; sinus about 1 mm deep and 

 2 mm broad at tip. 



Abrams. Fl LA 168. In saline places 

 toward the coast. Cienega; Santa 

 Monica. 



L^nidium dictvotum acutidens Gray. 

 LEPIDTUM DICTYOTUM Gray. 



Grav, Am ac pr 7:329; Watson, King 

 Exp 30 t 4. 



"Under sage-brush in early spring 

 at Carson City and Steamboat Springs, 

 Nevada (Anderson, Watson, Mann)." 

 Watson, bot Col 1:44. 



Parish Zoe 1-1 9 5 



Hsojn, E-rrthea 1:57. LA Co. 



Roripa Nasturtium Rusby. 



Abrams, Fl LA 172. 



Nasturtium aquaticum Tragus, Hist 

 82 (1552). 



**ri-.\Y< vs yellow. 



'RTTUM CURVTSTLIQUA Nuttall. 



v nn o:- bicn, sparlingly pubescent or 

 g-Mhrous with erect or ascending, usu- 

 ally mu^h branched sts. 15-45 cm hi; 

 lvs mostly oblanceolate in outline, pin- 



Gray, 



Davidson, Erythea 2:179. LA Co. 



See Lepidium acuti lens Howell. 

 LFPIDIUM FLAVUM Torrey. 



Davidson. Erythea 2:173. LA Co. 



Torrey. Pac Ry R 4:67 (1857). 



Type locality: "sandy places near the 

 Mohave creek," Cal. 



Glabrous, decumbent, diffusely 



branched: sts 3-G i long: radical lvs 

 pinnatifid with short obtuse lobes; cau- 

 line lvs few. oblanceolate, acutely 

 toothed or entire: ;. acem : 'S shori, near- 



