PATAGONIAN EXPEDITIONS I BOTANY. 



EXPLANATION OF PLATE XV. 



PAGE 



BERBERIS VIRGATA Ruiz & Pav 418 



The central figure gives the general habit ; of natural size. 



e, flower, two sepals removed. 



f, flower, opened. 



/, leafy bracts enclosing the flower. 



li, leaf-insertion. 



ov, ovary, longitudinal section. 



/, petal. 



se, seed-vessel, transverse section. 



sp, sepal. 



sta, stamens. 



(VOL. vin) 



