228 



crucifePw*:. 



broad, strongly reticulated, sparingly pubescent, winged at apex with 

 two broad acute teeth nearly as long as the body, the sinus between 

 the teeth or wings a narrow cleft. 



Beds or margins of winter pools on the plains or in alkaline flats. 

 Common in the Sacramento Valley and found in the Coast Ranges 

 from Round Valley (Mendocino Co.) to Napa Valley, Mt. Diablo 

 region, Hollister and southward to Southern California. Mar.-May, 

 fruiting June- July. 



5. L. dictyotum Gray. Branches several from the base, decum- 

 bent, or at length ascending, 1 to 2 in. long; leaves pinnatifid, the 

 segments few, linear and remote; petals little exceeding the sepals or 

 wanting; silicles 1| lines long, broadly elliptic, finely reticulated, 

 pubescent, with short obtuse wings or teeth at the summit, the sinus 

 narrow; pedicels ascending, flattened. 



Alkaline soils from Alameda (acc. to Greene) and Livermore 

 southward to Southern California. Mar.-Apr. 



6. L. strictum Rattan. Branching from the base, the branches 

 comparatively simple, suberect or diffuse, 4 to 12 in. high; leaves 

 with few pinnate segments or entire; stamens 4; silicles glabrous, 

 lightly reticulated, 2 to 2 h lines long, with 2 widely divergent 

 lanceolate wings or teeth at apex often £ as long as the elliptic body; 

 pedicels flattened, in fruit rather shorter than the pod. — (L. Oreganum 

 Greene, Fl. Fr. in part.) 



Lower San Joaquin and the Montezuma Hilrs. First collected by 

 Rattan in the "Live Oaks of the Mokelumne River, 1878." 



7. L. oxycarpum T. & G. Very slender, branched from the base, 

 the branches elongated, erect or ascending, 4 to 6 in. long, bearing 

 flowers more than half their length; leaves narrow, linear and sub- 

 entire, or pinnatifid with a few acute linear segments; pedicels widely 

 spreading or deflexed, more slender than in the other members of the 

 group, 1^ lines long; sepals very unequal, caducous, J line long; 

 petals none; stamens 2; silicle roundish, glabrate, finely reticulated. 

 1\ lines long, tipped with 2 very short and acute widely divergent 

 teeth; pedicels widely spreading or retrocurved, very slender, flattened, 

 longer than the pods. 



Borders of salt marshes or in alkaline soils in middle California 

 toward the coast: Vallejo; Berkeley Hills; Alviso. 



20. CORONOPUS Gajrtn. 

 Prostrate annuals (exhaling ;i heavy-scented odorj, with pinnatifid 

 leaves and short racemes of minute greenish white flowers. Sepals 

 oval, equal at base, spreading. Stamens often only 2 or 4. Silicle 

 small, more or less didymous, flattened contrary to the narrow parti- 

 tion, the surface strongly wrinkled or tuberculate; valves of the pod 

 falling away at maturity from the persistent axis as closed or nearly 

 closed nutlets. Cotyledons incumbent. (Greek korono, crow, and 

 pous, foot, because of the shape of the leaves.) 



