115 116 



low, often smopthish above: Ivs oblan- long-clawed: sta 6, nearly equal, anth 

 ceolate in outline, irregularly sinuate- twisted: ova short, stipitate; sty short 

 toothed or pinnatifid with spreading or 0: siliques linear, long-stipitate, 

 acute entire or toothed seg, 4-12 cm spreading or recurving, somewhat corn- 

 long, distinctly petioled or the upper pressed, dehiscent; valves strongly 1- 

 sessile by a narrow base: infl racemose: nerved: sds in 1 row in each cell: coty- 

 sep oblong, y z as long* as pet: pet nar- ledons straight, 

 row, spatulate, 3-5 mm long, pale rose STANLEYA PINNATA Britton. 

 or yellowish-w: siliques usually de- Sts stout, 15-25 drn high; lower Ivs 

 flexed or widely spreading, slender at- pinnatifid or pinnately divided or rare- 

 tenuate, 3-5 cm long, on pedicels 2-3 ly entire, 10-20 cm long, 2-8 cm wide, 

 mm long. long-petioled; upper Ivs similar or less 



Sisymbrium reflexum Nuttall, PI divided or oblong-lanceolate and en- 

 Garnb 183. Watson Bot . Cal 1:41.-^ tire, short- petioled; fls numerous, y; 

 Greene, Cal ac b 1:221. pet 16-24 mm long; fil filiform exserted; 



Thelypodium neglectum Jones, Am siliques 5-8 cm long, on stipes about ^ 

 nat 17:875. as long. 



Variety 1NALJENUM Robinson. Abrams, Fl LA 165. 



Abrams, Fl LA 166. Hills about LA. CD (Parish), Mohave, SBer, NM, Ar, 



Size and habit of type; pet y; siliques Wyo. 

 erect or sligncly spreading. Britton, NY ac tr 8:62 (1889). 



Sisymbrium acutangulum Brewer & Type locality: "in Upper Louisiana." 

 Watson. Bot Cal 1:41 (1876). Cleome pinnata Pursh, Fl 2:739 



THELYPODIUM WRIGHTII A. Gray. (1814). 



.Baja mts (Or. 945). Stanleya pinnatifida Nuttall. 



Genus THYSANOCARPUS Hooker. Genus SOPHIA Adams. 



Erect and slender, sparingly Ann or per herbs, canescent or pubes- 



branched ann with minute w or rose- cent with short forked hairs.. with 

 colored fls in slender elongated race- slender branching sts, 2-pinnatifid or 

 iv! es: sta 6, tetra lynamous or rarely finely dissected Ivs: fls y, in terminal 

 only 1: Capsule compressed, orbicular, racemes, these becoming elongated in 

 1-celled, 1-ovuled, inclehiscent, winged; fr: e NC early deciduous: sty very short: 

 the wings entire crenate or perforated, siliques linear or linear-oblong, slen- 

 THYSANOCARPUS CURVIPES Hooker, der-pedicelled, valves 1-nervei: sds 



More or less hirsute, 2 dm hi or minute, oblong, wingless, in 1 or 2 rows 

 more, branching above; basal Ivs ros- in each cell: cotyledons incumbent, 

 ulate, oblong, pirtn>atifi,l with short, SOPHIA INCISA Greene, 

 blunt lobes or dentate; upper Ivs lance- Glabtous or somewhat glandular- 

 olate, sagittate-auriculate, clasping fit hairy, 3-6 dm high, freely branching; 

 base, 1-2 cm long; pedicels very slen- Ivs pinnately divided, the seg lanceo- 

 der, 3-6 mrn long, strongly recurved; late or linear-lanceolate, incisely ser- 

 capsuTe usually pubescent; wings en- rate; pet lanceolate spatulate, surpass^ 

 tire or orenate. ing the pet; pedicels 4-6 mm long, 



Abrams, Fl LA 177. "Frequent on spreading, exceeded by the spreading Or 

 grassy slopes. Mr-Ap." curved-ascending, nearly or quite gla- 



Hall. U S3. brous capsule; sds in 1 row in ea'cTi 



Variety ELEGANS Robinson. cell. 



Variety PULCHELLUS Greene. Abrams, Fl LA 177. SBer mts, fre- 



DavHson. Er.'thea 2:179. LA Co. quont in the pine belt. 



THYSANOCARPUS LACINIATUS Nutt. SOPHIA PINNATA Howell. 



Smooth or nearly so, somewhat Densely canescent throughout, pale; 

 glaucous, 2-4 dm high, Ivs rather thin, st erect, branched, 2-7 dm high, slen- 

 1 asal ones not forming a rosette, linear, der, the branches ascending; Ivs 5-10 

 entire to deeply pinnatifid into narrow cm long, oblong, 2-pinnatifid into very 

 linear, seg : upper Ivs entire, 20-2-5 mm numerous small, toothed or entire ob- 

 long, 2-4 mm wide, narrowed at base, tuse seg; pedicels very slender, widely 

 recemes 10-20 cm long: pods elliptic to spreading, 10-15 mm long; pods hori- 

 ovbicular, 3-3.5 mm in diam, including zontal or ascending, oblong or linear- 

 the entire or slightly crenate wing, oblong, somewhat compressed, 6-8 mrn 

 7< ticulate, glabrous or sometimes long, 2 mm wide, canescent or gla- 

 somewhat pubescent; pedicels slender, brous: sds in 2 rows in each cell. 

 sp-ealing" an 1 becoming more or less Abrams. Fl LA 177. "Common in 

 'ceflexed. san-iv soil in the foothills and valleys. 



Abrams, Fl LA 177. Ap-Je." 



'-lanles-ee Zoe 1:113, Catalina I. SD (Or 43). Baja! 



Variety CREMATUS Brandegee. See Sisymbrium pinnatum. 



Oenus STAXLEYA ' Nuttall. Genus ATHYSANUS Greene. 



Mostly tall erect branching glabrous Slender diffuse ann, leafy only near 



or glaucous per herbs; Ivs entire tooth- the base: Ivs simple, toothed: sep equal: 



e! o- pinnately divided; fls large, y, pet without claws: sta 6, equal: silicles 



b> artless, in elongated terminal rac- orbicular, not winged or margined, 1- 



emes: sep linear, narrow: pet narrow, celled, 1-ovuled. 



