CLASSIFICATION OF ANGIOSPERMS. 689 



the seeds have a reserve layer and a straight or slightly curved 

 embryo. , 



FIG. 380. Culver's-root (Leptandra virginica) showing the verticillate leaves and the long 

 spike-like terminal racemes. 



Leptandra virginica (Veronica virginica), or Culver's root, is 

 a perennial herb with leaves in whorls of 3 to 9, those on the upper 

 part of the stem being opposite. They are lanceolate, serrate, 



44 



