148 CRUCIFER.E. 



late-clasping at the base ; glabrous throughout. Racemes 

 elongated in fruit, ebracteate. Flowers rather large, yellow. 



Etymology. The Herb of Santa Barbara; an early popular name. 



Geographical Distribution, &c. A genus of few species, natives of 

 Europe and the colder parts of North America. B. vulgaris is widely nat- 

 uralized, and B. praecox sparingly so, in the United States, but not truly in- 

 digenous, except, perhaps, on our northern frontier. Besides the popular 

 names given above, they are sometimes called Srurvy- Grass, an appellation 

 which properly belongs to Cochlearia officinalis. 



PLATE 62. Barbarea vulgaris, R. Br.; — summit of a stem, of the 

 natural size (from the naturalized plant). 

 I. A sepal ; and 2, a petal ; enlarged. 



3. Stamens and pistil, with the hypogynous glands ; enlarged. (The 



pistil is wrongly turned flatwise, instead of edgewise, to the eye.) 



4. A pistil, more magnified. 



5. An ovule, much magnified. 



6. Silique, enlarged, and transversely divided. 



7. Same, dehiscent, showing the seeds. 



8. Portion of the replum and partition from the base of the pod, with the 



seeds, more enlarged. 



9. Tissue from the partition, highly magnified. 



10. A magnified seed, cut across, showing the thick accumbent cotyledons. 



11. Detached embryo, magnified. 



