5. Lepidium apetalum Willd. 
Apetalous Pepper-grass. (Fig. 1688.) 
Lepidium apetalum Willd. Sp. Pl. 3: 439. _ 1801. 
Lepidium intermedium A. Gray, Man. Ed. 2. 
1856. Not A. Rich. 1847. 
Much like Z. vuderale and L. Virginicum. 
Basal leaves pinnatifid. Pods nearly orbicu- 
lar, sometimes broader than long, slightly 
wing-margined above, about 1’ in diameter; 
flowering pedicels ascending, forming nar- 
row racemes, or in fruit spreading; petals 
minute or wanting; cotyledons incumbent. 
In dry soil, Maine and Ontario to California, 
south to Texas. Apparently naturalized from 
Europe. May-Aug. 
Lepidium médium Greene (ZL. ixfermedium A. 
Gray, Pl. Wright. 1848. Not A. Rich.), with 
rather large white petals, orbicular pods 11%"’ 
broad, and incumbent cotyledons, is found by 
Mr. Bicknell near New York city. 
/ 
CRUCIFERAE, 
Lepidium Virginicum I,. Sp. Pl. 645. 
{Von. IT. 
4. Lepidium Virginicum L. Wild 
Peppergrass. (Fig. 1687. 
1753. 
Similar to Z. ruderale, often taller. Basal 
leaves obovate or spatulate in outline, less pin- 
natifid, generally with a large terminal lobe and 
numerous small lateral ones, all dentate, gla- 
brous or slightly pubescent; stem-leaves lanceo- 
late or oblong-linear, sharply dentate or entire, 
sessile, or the lower stalked; flowers 14//-1/” 
broad, white; petals generally present, some- 
times wanting in the later flowers; pedicels 
very slender, spreading, 2’’-3/’ long in fruit; 
pod flat, short-oval 
winged above; cotyledons accumbent. 
or orbicular, minutely 
In fields and along roadsides, Quebec to Minne- 
sota, south to Florida, Texas and Mexico. Also in 
the West Indies, and introduced as a weed into 
southern Europe. 
May-Nov. 
Dy 
i 
DN 
6. Lepidium sativum L,. Garden, 
Town, or Golden Pepper-grass 
or Cress. (Fig. 1689.) 
Lepidium sativum I. Sp. Pl. 644. 1753. 
Glabrous, bright green, stem slender, usu- 
ally much branched, about 1° high. Lower 
leaves 2-pinnate, or pinnate with the segments 
lobed or pinnatifid, 3’—7’ long, the lobes en- 
tire or incised; upper leaves sessile or nearly 
so, entire or incised, much smaller; flowers in 
loose elongated racemes, about 1/’ broad; 
petals present; silicles oval, about 2’ high 
and 1/’ wide, equalling or longer than their 
pedicels, emarginate, winged all around; style 
very short. 
Tn waste places, Quebec to New York and Brit- 
ish Columbia. Escaped from gardens, Native 
of Europe. Much cultivated for its pungent 
foliage. Petals often pinkish. May-Aug. 
