1 66 



CRUCIFERAE. 



Vol. II. 



5. Lepidium densiflorum Schrad. Wild Tongue- or Pepper-grass. Fig. 2041. 



%^ 



Lepidium densiflorum Schrad. Ind. Sem. Goett. 4. 



1835- 

 Lepidium intermedium A, Gray, Man. Ed. 2. 



1856. Not A. Rich. 1847. 



L. ramosissimum A. Nelson, Bull. Torr. Club 26 ; 

 124. 1899, 



Much like L. ruderale and L. virgiiiicum. 

 Basal leaves pinnately lobed or pinnatifid. 

 Pods obovate-orbicular to ovate, sometimes 

 broader than long, slightly wing-margined 

 above, about i" in diameter; tlowering pedicels 

 ascending, forming narrow racemes, or in 

 fruit spreading; petals small or wanting; 

 seeds nearly wingless ; cotyledons incumbent. 



In dry soil, Maine and Ontario to British Co- 

 lumbia, Virginia, Texas and Nevada. Naturalized 

 in Europe and native also of Asia. May-Aug. 

 Has been confused with the Asiatic L. apetalum 

 Willd. and with L. medium Greene. 



Lepidium neglectum Thellung, differing by 

 slightly longer capsules with more distinctly 

 winged seeds, is widely distributed within the 

 range of the preceding species and is also natural- 

 ized in Europe ; but it does not appear to be spe- 

 cifically distinct. 



6. Lepidium sativum L. 



Garden, Town or Golden Pepper-grass or Cress. 

 Fig. 2042. 



Lepidium sativum L. Sp. PI. 644. 1753. 



Annual, glabrous, bright green, stem slender, 

 usually much branched, about 1° high. Lower 

 leaves 2-pinnate, or pinnate with the segments 

 lobed or pinnatifid, 3'-7' long, the lobes entire 

 or incised ; upper leaves sessile or nearly so, 

 entire or incised, much smaller; flowers in loose 

 elongated racemes, about i" broad; petals pres- 

 ent; stamens 6; silicles ovate-oval, about 2" 

 high and i" wide, equalling or longer than their 

 pedicels, emarginate, winged all around ; style 

 short. 



In waste places, Quebec to New York and British 

 Columbia. Escaped from gardens. Native of Eu- 

 rope. Much cultivated for its pungent foliage. 

 Petals often pinkish. Tongue-grass. May-Aug. 



18. CARARA Medic. Pflg. i : 34. 1792. 



[Cor6nopus Gaertn. Fruct. & Sem. 2; 293. 1791. Not Mill. 1754.] 



Annual or biennial, diffuse, unpleasantly odorous herbs, with mostly pinnatifid leaves, 

 and small whitish flowers. Pubescence of simple hairs. Silicles small, didymous, laterally 

 compressed, sessile. Stamens often only 2 or 4. Valves of the capsule oblong or subglobose, 

 obtuse at each end, rugose or tuberculate, indehiscent, falling away from the septum at 

 maturity. Seeds i in each cell; cotyledons narrow, incumbent. [Ancient Italian name.] 



About 6 species, of wide geographic distribution in warm and temperate regions. Type species : 

 Carara Coronopus (L.) Medic. 



Pod rugose, not crested, emarginate. i. C. didymus. 



Pod coarsely wrinkled, crested, tuberculate. 2. C. Coronopus. 



