16 BULLETIN 1366, U. S. DEPARTMENT OF AGBICULTUEE 



ACONITUM. 



Aconitum sp., monkshood 



Erysiphe polygoni DC. powdery mildew. W. Va 

 Urocystis sorosporioides Koern., smut. Utah. 

 Uromyces aconiti Fckl., rust. Colo., Utah, Calif. 



AESCULUS. 



A. calif ornica, California buckeye. 



Exoascus aesculi (Ell. and Ev.) F. Patterson, witches'-broom. ^Calif. 



Gloeosporium carpogenum Cke., leaf-blight. Calif. 



Phoradendron villosum Nutt., mistletoe. Oreg., Calif. 



Phyllactinia corylea (Pers.) Karst., powdery mildew. Calif. 



Septoria aesculi (Lib.) West., leaf -spot. Calif. 

 A. glabra, Ohio buckeye. 



Aecidium aesculi Ell. and Kell., rust. Nebr., Kans. 



Guignardia aesculi (Pk.) V. B. Stewart, leaf-blotch. Miss. Valley and Ohio 

 Valley. 



Phoradendron flavescens (Pursh) Nutt., mistletoe. Eastern States. 



Phyllosticta aesculicola Sacc, leaf-spot. Va., Tex., Mo. 



Septoria glabrae Ell. and Ev., leaf -spot. Ind. 



Uncinula flexuosa Pk., powdery mildew. Miss. Valley and Ohio Valley. 

 A. hippocastanum, horsechestnut. 



Botryosphaeria ribis Gross, and Dug., blight. N. Y., D. C. 



Collybia velutipes Curt., white sap-rot. R. I. 



Glomerella cingulata (Ston.) Spauld. and Schrenk, anthracnose. Conn., N. Y. 



Guignardia aesculi (Pk.) V. B. Stewart, leaf-blotch. General, especially east 

 of Rocky Mts. 



Nectria cinnabarina Fr., coral spot. New England, N. Y. 



Septoria sp., leaf -spot. Pa. 



Uncinula flexuosa Pk., powdery mildew. Mass., N. Y., N. J., Del., Ind. 

 A. octandra, yellow buckeye. 



Guignardia aesculi (Pk.) V. B. Stewart, leaf -blotch. Tex., Iowa. 



Phyllosticta aesculicola Sacc, leaf-spot. Tex. 



Uncinula flexuosa Pk., powdery mildew. Ala. 

 A. pavia, red buckeye. 



Guignardia aesculi (Pk.) V. B. Stewart, leaf-blotch. Ala., Miss. 



Phyllosticta aesculicola Sacc, leaf -spot. Miss. 



Uncinula flexuosa Pk., powdery mildew. Ala. 



AGROPYRON. 



*A. repens, couchgrass, quackgrass. 



Bacterium coronafaciens atropurpuremn^C. S. Reddy and James Godkin, 



bacterial blight. Wis., N. Dak. 

 Claviceps purpurea (Fr.) Tul., ergot. Occurs scatteringly throughout the 



range of host. 

 Colletotrichum graminicolum (Ces.) Wils., anthracnose. N. Y., Pa., Minn.; 



probably other States. 

 Erysiphe graminis DC, powdery mildew. N. Y., Pa., Mich., Minn., Mont. 

 Helminthosporium giganteum Heald and Wolf, leaf -spot. D. C, Md. 

 H. sativum Pam., King, and Bak., spot-blotch. Wis., N. Dak. 

 Ophiobolus graminis Sacc, take-all. N. Y. 

 Phyllachora graminis (Pers.) Fckl., tar-spot. General throughout range of 



host. 

 Phyllosticta sp., leaf -spot. Pa. 



Puccinia clematidis (DC.) Lagh., leaf-rust. General. 

 P. coronata Cda., rust. Vt. 

 P. graminis Pers., stem-rust. General. 



Pyrenophora tritici-repentis (Died.) Drechs., leaf-blight. Wis. 

 Septoria agropyri Ell. and Ev., leaf -spot. Wis. 

 Tilletia earlei Griff., covered smut. N. Dak. 



Urocystis agropyri (Preuss) Schroet., smut. Vt., Mass., Conn., N. Y., Pa. 

 Ustilago hypodytes (Schl.) Fr., smut. N. Y. 

 U. macrospora Desm., smut. Mass., Wis., Iowa. 

 U. striaeformis (West.) Niessl, stripe-smut. N. Y. 



