50 BULLETIN 1366, U. S. DEPARTMENT OF AGRICULTURE 



HAMAMELIS— Continued. 



H. virginiana, witch-hazel — Continued. 



Phyllosticta hamamelidis Cke., leaf -spot. General east of Miss. River. 

 Podosphaera biuncinata Cke. and Pk., powdery mildew. General east of 



Miss. River. 

 Ramularia hamamelidis Pk., leaf-spot. N. Y., W. Va., Mich., 111., Wis. 



HEDERA. 



H. helix, English ivy. 



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



N. C, Tex. 

 Phyllosticta concentrica Sacc, leaf-spot. N. Y., N. J., S. C, Ala., Tex. 

 P. hederaecola Dur. and Mont., leaf-spot. N. Y., N. J. 

 Ramularia hedericola Heald and Wolf, leaf-spot. Tex. 

 Vermicularia trichella Fr., leaf-spot. Mass., S. C, Md., Ohio. 



HELIANTHUS, 



H. annuus, sunflower. 



Armillaria mellea (Vahl) Quel., root-rot. Oreg. 



Botrytis sp., stem-rot. Oreg., Calif. 



Cercospora pachypus Ell. and Kell., leaf -spot. Kans., Tex. 



Entyloma polysporum (Pk.) Farl., smut. Mont. 



Erysiphe cichoracearum DC., powdery mildew. General. 



Fusarium sp., damping-off. N. J. 



Heterodera radicicola (Greef) Muell., root-knot. W. Va., Ala. 



Ozonium omnivorum Shear {Phymatotrichum omnivorum (Shear) Dug.), root- 

 rot. Tex. 



Plasmopara halstedii (Farl.) Berl. and DeToni, downy mildew. Ohio, W, 

 Va., Ind., Iowa, Minn., N. Dak., Kans. 



Puccinia helianthi-mollis (Schw.) Jack., rust. General. 



Sclerotinia sclerotiorum (Lib.) Mass., stem-rot. Mich., Wis., Minn., Iowa 

 N. Dak., Mont., Idaho, Wash., Oreg. 



Septoria helianthi Ell. and Kell., leaf-spot. Widespread. 

 H. tuberosus, Jerusalem-artichoke. 



Cercospora helianthi Ell. and Ev., leaf-spot. Kans. 



Coleosporium helianthi (Schw.) Arth., rust. Va., S. C, Ala., 111. 



Erysiphe cichoracearum DC, powdery mildew. Northeastern and North- 

 Central States. 



Ozonium omnivorum Shear {Phymatotrichum omnivorum (Shear) Dug.) , root- 

 rot. Tex. 



Plasmopara halstedii (Farl.) Berl. and DeToni, downy mildew. Vt., Del., 

 Wis., Iowa, Kans. 



Puccinia helianthi-mollis (Schw.) Jack., rust. East of Great Plains. 



Sclerotinia sp., wilt. Wash. 



Sclerotium rolfsii Sacc, stem-rot. S. C, La. 



HELLEBORUS. 



H. niger, Christmas-rose. 



Coniothyrium hellebori Cke. and Mass. N. Y., Oreg. 

 HEMEROCALLIS. 

 H. fulva, daylily. 



Cercospora hemerocallis L. R. Tehon, leaf-spot. 111. 



Didymellina iridis (Desm.) Hoehn., leaf-spot. N. J. 



HIBISCUS. 



H. esculentus, okra, gumbo. 



Ascochyta abelmoschi Harter, pod-spot. N. Y., Md., S. C. 

 Botrytis sp., rot. N. Y. 

 Cercospora althaeina Sacc, leaf -spot. La. 

 C. brachypoda Speg., leaf -spot. La. 



C. hibisci Tr. and Earle, leaf-spot. Fla., Ala., La., Miss. 

 Corticium vagum Berk, and Curt., stem-rot. Ala., Tex. 

 Erysiphe cichoracearum DC, powdery mildew. Conn. 

 Fusarium vasinfectum Atk., wilt. Southern States; Conn., Pa., Ariz. 

 Heterodera radicicola (Greef) Muell., root-knot. Southern States. 

 Ozonium omnivorum Shear {Phymatotrichum omnivorum (Shear) Dug.) , 

 root-rot. Tex., Ariz. 



