150 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Skr. 



EXPLANATION OF PLATE XV. 



Calochortus purdyi. 



a. Plant, actual size. 



b. Petal. 



c. Stamen, enlarged, 

 rf. Sepal. 



e. Scale on petal, enlarged. 

 /, Ripe pod. 



