LIST OF DISEASES OF ECONOMIC PLANTS 23 



ARACHIS — Continued. 



A. hypogaea, peanut — Continued. 

 Puccinia arachidis Speg., rust. Fla. 

 Sclerotium rolfsii Sacc, stem-rot. General in South. 

 Thielavia basicola (Berk, and Br.) Zopf, black root-rot 



ARAIIA. 



A. spinosa, devils-walkingstick. 



Cercospora atromaculans Ell. and Ev., leaf -spot. La. 

 Phyllosticta everhartii Sacc. and Syd., leaf-spot. W. Va. 



ARBUTUS. 



A. menziesii, madrone. 



Exobasidium vaccinii (Fckl.) Wor., gall. Calif. 

 Mycosphaerella arbuticola Pk., leaf-spot. Pacific coast. 

 Phyllosticta fimbriata Ell. and Ev., leaf-spot. Oreg. 

 Pucciniastrum sparsum (Wint.) Ed. Fischer, rust. Pacific coast. 

 Rhytisma arbuti PhilL, tar-spot. Pacific coast. 



ARCTOSTAPHYLOS. 



Arctostaphylos spp., bearberry, manzanita. 



Exobasidium vaccinii (Fckl.) Wor., red leaf-spot. Colo., Oreg., Wash., 



Calif. 

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

 Pucciniastrum sparsum (Wint.) Ed. Fischer, rust. Pacific coast. 



ARISTOLOCHIA. 



A. serpentaria, Virginia snakeroot. 



Cercospora serpentaria Ell. and Ev., leaf-spot. Del., Ala. 

 ARONIA. 



Aronia spp., chokeberry. 



Bacillus amylovorus (Burr.) Trev. (Erwinia amylovora (Burr.) Com. S. A. B.), 

 blight. W. Va. 



Cercospora mali Ell. and Ev., leaf-spot. Ala. 



C. piri Farl., leaf -spot. N. H., Wis. 



Gymnosporangium clavariaeforme (Jacq.) DC, rust. Mass. 



G. davisii Kern, rust. Me., Mich., Wis. 



G. germinate (Schw.) Kern, rust. Me., Mass. 



G. transformans (Ell.) Kern, rust. Mass., Pa., N. J. 



Phyllosticta arbutifolia Ell. and Mart., leaf -spot. N. J. 



ARUNDINARIA. 



Arundinaria sp., bamboo, cane. 



Puccinia arundinariae Schw., rust. Tex. 

 A. macrosperma, southern cane. 



Puccinia arundinariae Schw., rust. S. C. 

 A. tecta, small cane. 



Puccinia arundinariae Schw., rust. S. C, Miss., La. 

 ASCIEPIAS. 

 A. tuber osa, butterfly weed, *pleurisy root. 



Cercospora asclepiadorae Ell. and Kell., leaf -spot. Ala. 



Phyllosticta tuberosa Ell. and Mart., leaf -spot. N. J. 



Puccinia jamesiana (Pk.) Arth., rust. Okla., Iowa, Kans. 



Uromyces howei Pk., rust. Del., Fla., 111., Iowa, Kans. 



ASIMINA. 



A. triloba, papaw. 



Cercospora asiminae Ell. and Kell., leaf -spot. Ala., Miss., Kans. 

 Phleospora asiminae Ell. and Morgan, leaf-blotch. Ohio, 111., Mo., Kans. 

 Phyllosticta asiminae Ell. and Kell., leaf -spot. General. 



