XXX 



Rept. Mich. Agr. 



Michigan State Board of Agriculture. Report. 



Rept. Minn. Surv. 



Minnesota Geological and Natural History Survey. Annual Report. 



Rept. Mo. Bot. Gard. 



Missouri Botanical Garden. St. Louis. Report. 



Rept. Mo. Hort. Soc. 



Missouri State Horticultural Society. Report. 



Rept. Nebr. Agr. 



Nebraska State Board of Agriculture. Report. 



Rept. N. Y. Exp. Sta. 



Board of Control of the New York Agricultural Experiment Station. 

 Geneva. Annual Report. 



Rept. Ohio Acad. 



Ohio State Academy of Science. Columbus. Annual Report. 



Rept. Ont. Agr. Union. 



Ontario Agricultural and Experimental Union. Toronto. Annual 

 Report. 



Rept. U. S. Agr. 



United States Department of Agriculture. Report. 



Rept. U. S. Surv. 



United States Geological Survey. Report. 



Rept. Vt. Exp. Sta. 



Vermont Agricultural Experiment Station. Burlington. Report. 



Rept. Wyo. Exp. Sta. 



Wyoming Experiment Station. Laramie. Report. 



Rev. Gen. de Bot. 



Revue generale de botanique. Paris. 



Rev. Gen. PI. 



Revisio Generum Plantarum. Otto Kuntze. 



Rev. Myc. 



Revue Mycologique. C. Roumeguere. 



Revista Argent. Hist. Nat. 



Revista Argentina de Historia Natural. Buenos Aires. 



Riv. Patol. Veg. 



Rivista di Patologia Vegetale. Ed. A. and A. N. Berlese. 



Rostf. 



Rostafinski, J. 



Rostr. 



Rostrup, E. 



Roum. 



Roumeguere C. 



