LIST OF DISEASES OF ECONOMIC PLANTS 37 



CITRUS— Continued. 



C. nobilis unshiu, Satsuma orange — Continued. 



Penicillium digitatum (Ft.) Sacc, green-mold rot. Ala. 



P. italicum C. Wehmer, blue-mold rot. Ala. 



Phomopsis citri Fawc., melanose, stem-end rot. Fla., Ala., Miss 



Die-back, undet. Fla. 



Gummosis, undet. Fla. 

 C. sinensis, orange. 



Alternaria citri N. B. Pierce, black-rot. Fla., Ariz., Calif. 



Bacterium citrarefaciens H. A. Lee (Phytomonas citrarefaciens (Lee) Com. 

 S. A. B.), citrus blast. Calif. 



B. citri (Hasse) Jehle (Phytomonas citri (Hasse) Com. S. A. B.), citrus canker. 

 Gulf States. 



Cerospora aurantia Heald and Wolf, leaf-spot. Tex. 



Colletotrichum gloeosporioides Penz. (Glomerella cingulata (Ston.) Spauld. and 



Schrenk), die-back, associated with citrus wither-tip. Gulf States. 

 Diplodid natalensis Ev., stem -end rot. Fla. 

 Fusarium limonis Briosi, foot-rot. Ala. 

 Oospora sp., soft-rot. La. 

 Penicillium sp., blue-mold. General. 



Phomopsis citri Fawc, melanose, stem-end rot. Fla., Ala., Miss., La. 

 Phyllosticta adusta Ell. and Mart., leaf-spot. Fla. 

 Phytophthora terrestris Sherb., foot-rot. Fla. 



Pythiacystis citrophthora E. H. and R. E. Smith, brown-rot. Ariz. 

 Sclerotinia sp., Calif. 

 Septobasidium sp., girdle. Fla., La. 

 Sporotrichum citri Butl. (Sphaceloma fawcettii A. Jenkins), scab. Fla., Miss., 



Tex. 

 Stemphylium citri F. Patterson and V. K. Charles, end-rot. Ariz. 

 Tylenchus semipenetrans Cobb, root nematode. Fla., Calif. 

 Chlorosis, undet, Fla., Calif. 

 Die-back, undet. Miss., Calif. 

 Greasy spot, undet. Fla. 

 Gummosis, undet. Fla., Calif. 

 Mottled-leaf, frenching, undet. Fla., Miss., Calif. 

 Psorosis, California scaly bark, undet. Fla., Ariz., Calif. 

 Seal} 7 bark, attributed to Cladosporium herharum citricolum Fawc. Fla. 

 C. trifoliata, hardy orange. 



Bacterium citri (Hasse) Jehle (Phytomonas citri (Hasse) Com. S. A. B.) citrus 



canker. Ala., Fla. 

 Colletotrichum gloeosporioides Penz. (Glomerella cingulata (Ston.) Spauld. 



and Schrenk), associated with citrus wither-tip. Fla., Tex. 

 Diplodia aurantii Catt., twig-blight. Tex. 

 Phoma sp., damping-off. Tex. 

 Phomopsis citri Fawc, melanose. Fla., Miss. 

 Die-back, undet. Fla. 



CLEMATIS. 



Clematis sp., clematis, virgins-bower. 



Ascochyta clematidina (Thuem.) emend. W. O. Gloyer, stem-rot and leaf- 

 spot, N. Y., Wis. 



Bacterium tumefaciens EFS. and Town. (Phytomonas tumefaciens (EFS. and 

 Town.) Com. S. A. B.), crown-gall. Minn. 



Cercospora rubigo Cke. and Hark., leaf-spot. Wash., Calif. 



C. squalidula Pk., leaf -spot. Frequent in wideby scattered States. 

 Cylindrosporium clematidis Ell. and Ev., leaf-spot. Conn., N. Y., Del., 



Miss., Wis. 

 Erysiphe polygoni DC, powdery mildew. Frequent in widely scattered 



States. 

 Heterodera radicicola (Greef) Muell., root-knot. Ala., Ohio, Wash., Oreg. 

 Phleospora adusta Heald and Wolf, leaf-blight. Tex. 

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

 P. stromatica Berk, and Curt., rust. Ala. 

 Ramularia clematidis Dearn. and Barth., leaf-spot. Mont. 

 Septoria jackmani Ell. and Ev., leaf -spot. N. Y. 



