Explanation of PL XX. 



C<-ria/>N Cciii<l<31<'<niri Ar;x. var. Avjv //.// 1 [AY ATA. 



Fig. 1. A branch. 



2. A leaf. 



3. A flower. 



4. The same, sepals and petals partially taken off ; sepals, petals, 



stamens and a pistil are seen. 



5. A sepal. 



6. A petal. 



7. 8. A stamen, seen from different side. 

 9. A pistil. 



