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SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 78 



Fig. 12.— Saitssurca dcnsa (Hooker) Kydherg. (.Mary Vaux Walcott. 1925.; 



•p^- >B , 



Fig. 13. — Linnaca lUiicricaiia Forbes. Twin-flower. 

 (Mary Vaux Walcott. 1925.) 



