AMESn^M RUTA-MURAEIA. 



35? 



0, 







RUE-LEAVED SPLEENWOET, {natural size). 



Genus. — Amesium. Ultimate divisions without a distinct 

 midvein : veins of tlie ultimate divisions very few, sparingly 

 branched, free at the extremities : involucres narrow, linear, 

 frequently facing each other as in the preceding genus, but 

 rarely overlapping. 



