PLANTS NOVJ: THURBERIAN^: 



THE CHARACTEKS OF SOME 



NEW GENERA AND SPECIES OF PLANTS 



m A COLLECTION MADE BY 



GEOEGE THURBER, Esq., 



OF THE LATE MEXICAN BOUKDABT COSOHESION, 

 CHIEFLY IX 



NEW MEXICO AND SONORA. 



By ASA GRAY, M. D. 



[From the Memoirs of the American Academy of Arts and Sciences, New Series, Vol. V.] 



CAMBRIDGE, MASSACHUSETTS : 

 METCALF AND CO.: PRINTEES TO THE UNIVEESITY. 



1854. 



