52 WEEDS AND USEFUL PLANTS. 



Root annual. Stem 9-18 inches high, smooth, glaucous, corymbosely branched above. 

 Leaves 1 - 3 inches long, deeply divided into linear or cuneate segments. Petals white. 

 Seeds compressed. 



Gardens : cultivated. Native of Persia. Fl. June -July. Fr. August. 



Obs. A. pleasant antiscorbutic Cress, frequent in Gardens. 



2. L. Virgin 'icum, L. Pods orbicular, wingless, notched at the apex ; 

 upper leaves linear lanceolate, toothed ; stamens 2. 



VIRGINIAN LEPIDIUM. Wild Pepper-grass. 



Annual. Stem a foot or more high, paniculately branched above, minutely pubescent. 

 Flowers especially late in the season, minute. Pods on spreading pedicels. 

 Common. June -September. 



Obs. This common weed is a native of the southern portion of our 

 country, and is abundantly naturalized in many parts of Europe thus 

 making a partial return for the abundant supply of weeds which has 

 crossed the ocean to our shores. It is very frequent in dry fields and 

 along road-sides. The reddish-brown seeds are sometimes found among 

 clover seed, and excite apprehension of some pernicious intruder ; but 

 although a worthless little weed, if there be nothing worse among clover 

 seed, the farmer need not be alarmed. L. ruderale, L., with oval and 

 smaller pods and no petals, and L. campestre, L., with winged pods 

 roughened with minute scales, are European species which areas yet but 

 sparingly naturalized. 



10. RAPHA'NUS, L. EADISH. 



[Greek, JRa, quickly, and phaino, to appear from its quick germination.] 



Pod elongated, 2 - many-celled by corky transverse partitions. Style 

 long. Seeds in a single series, globose. Annuals or biennials, with yel- 

 lowish, whitish or purple flowers. 



1. R. SATI'VUS, L. Lower leaves lyrate, petiolate ; upper ones ovate- 

 oblong, serrate, subhastate-lobed at base, subsessile ; petals purple and 

 greenish white ; siliques terete, torulose, acuminate, scarcely longer than 

 the pedicels, many-celled by corky false partitions. 

 CULTIVATED RAPHANUS. Radish. Garden Radish. 

 Fr. Radis. Raifort. Germ. Der Rettig. Span. Rabano. 

 The following varieties are usually cultivated : 



FIG. 28. Cultivated Radish (Raphanus sativus), opened to exhibit the cellular partitions. 



