452 MISC. PUBLICATION 3 64, U. S. DEPT. OF AGRICULTURE 



Weir, J. R. (8972) 



CENANGIUM PINLPHILUM, N. SP., AN UNDESCRIBED CANKER-FORMING FUNGUS ON 



pinus ponderosa and p. contorta. Phytopathology 11: 294-296, illus. 

 1921. 



— (8973) 



AN EPIDEMIC OF NEEDLE DISEASES IN IDAHO AND WESTERN MONTANA. Phyto- 

 pathology 3: 252-253. 1913, 



— (8974) 



HYPODERMA DEFORMANS, AN UNDESCRIBED NEEDLE FUNGUS OF WESTERN YELLOW 



pine. Jour. Agr. Research 6 : 277-288, illus. 1916. 



— (8975) 



KEITHIA THUJINA, THE CAUSE OF A SERIOUS LEAF DISEASE OF THE WESTERN RED 



cedar. Phytopathology 6 : 360-363, illus. 1916. 



— (8976) 

 a needle blight of douglas fir. Jour. Agr. Research 10: 99^104, illus. 



1917. 



— (8977) 



A NEW LEAF AND TWIG DISEASE OF PICEA ENGELMANNI : A PRELIMINARY REPORT. 



Jour. Agr. Research 4: 251-254, illus. 1915. 



— (8978) 



NOTES ON CENANGIUM ABIETIS (PEES.) REHM ON PINUS PONDEROSA LAWS. PhytO- 



pathology 11 : 166-170', illus. 1921. 



— (8979) 



phactdium INFECTANS on western conifers. Phytopathology 6: 413-414. 

 1916. 



— (8980) 



TELIAL STAGE OF GYMNOSP0RANGIUM TUBULATUM ON JUNIPERUS SCOPULORUM. 



Phytopathology 5 : 218. 1915. 



— and Hubert, B. E. (8981) 



cronartium cerebrum on pinus RESiNOSA. Phytopathology 7 : 450-451. 1917. 



White, R. P. (8982) 



the dutch elm disease. Shade Tree 3 (12) : 2-7, illus. 1930. 



York, H. H. (8983) 



A PERIDERMIUM NEW TO THE NORTHEASTERN UNITED STATES. Science 64 (1664) : 



500-501. 1926. 



(8984) 



the woodgate rust. Jour. Econ. Ent. 22 : 482-485. 1929. 



ROOT ROTS 



Essig, E. O. (8985) 



new hosts of oak root fungus in humbolt county. Calif. Comn. Hort. 

 Monthly Bull. 8 (2) : 79-80. 1919. 



Haasis, F. W. (8986) 



root rot as a factor in survival. Jour. Forestry 21 : 506. 1923. 



Horne, W. T. (8987) 



fungus root 1 rot. Calif. Comn. Hort. Monthly Bull. 1 : 216-225, illus. 1912. 



(8988) 



OAK fungus or armillaria mellea in connection with nursery stock. 

 Calif. Comn. Hort. Monthly Bull. 4 : 179^184, illus. 1915. 



(8989) 



oak root fungus disease. Calif. Comn. Hort. Monthly Bull. 8 (2) : 64-68, 

 illus. 1919. 



Hubert, E. E. (8990) 



A ROOT AND BUTT ROT OF CONIFERS CAUSED BY POLYPORUS CIRCINATUS FR. Phyto- 

 pathology 19: 745-747. 1929'. 



Long, W. H. (8991) 



THE DEATH OF CHESTNUTS AND OAKS DUE TO ARMILLARIA MELLEA. U. S. Dept. 



Agr. Bull. 89, 9 pp., illus. 1914. 



