Aug. 27, 1917 Puccinia graminis on Cereals and Grasses 



479 



Table XXXI. — Results of inoculations with urediniospores of P. g 



Continued 



ramims avenae- 



The results of the field-survey work and inoculations in the greenhouse 

 with P. graminis avenae are given in the following summary: 



Hosts found naturally infected: Avena sativa 1^., A. fattia L., Agrostis 

 exarata Trin., Anthoxanthum puelii Lecoq. and Lamotte, Dactylis glomerala 

 ly., Koeleria crisiata (L.) Pers., Panicularia pauciflora (Presl.) Kuntze. 



Easily infected by artificial inoculation: Arrhenatherum elatius (L.) 

 Beauv., Alopecurus geniculatus L., A. pratensis L., Bromus teciorum L., 

 Calamagrostis canadensis (Michx.) Beauv., Holcus lanatus Iv., Phalaris 

 canariensis L. 



Weakly infected by artificial inoculation: Agropyvon crisiatum J. 

 Gaert., Agrostis alba h., A. stolonifera Vasey, Bcckmanni-a erucaeformis 

 (Iv.) Host., Bromus erectus Huds., B. purgans L., Elymus canadensis 

 L. , E. robustus Scribn. and J. G. Sm. , Festuca elatior L. , F. ovina L. , Hordeum 

 pusillum Nutt., H. vulgare ly., H. vulgar e pallidum Ser., H. vulgare 



