136 Botanisches Centralblati. 



Freeman, E. M. and E. C. Stakman. 1911. The smuts of grain crops. 



(Extension Bull. Univ. Minnesota. 1911. 14. with 3 pl.). 

 Freeman, E. M. and E. C. Stakman. 1914. The smuts of grain crops. 



(Bull. Minnesota Agr. Exp. Stat. Revised and reprinted. 1914. 122. 



34 pp. 11 f.) 

 Giddings, N. J. and D. C. Neal. 1912. Control of apple rust by spraying. 



(Phytopathology. II. p. 258—260. 2 pl.) 

 Glover, W. 0. 1911. The occurrence of apple blotch in Ohio. (Ohio 



Nat. XI. p. 334—336. 1 f.). [Referring to Phyliosticta solitaria. — 



Trelease.] 

 Graves, A. H. 1912. The large leaf spot of chestnut and oak. (Myco- 



logia. IV. p. 170—174. 1 pl. 1 f.). [Referring to Monochaetia Des- 



mazieri. — Trelease.] 

 Gregory, C. T. 1912. Spore germination and infection with Plasmo- 



para viticola. (Phytopathology. II. p. 235. 7 f.) 

 Hartley, C. 1913. Bark rusts of Juniperus virginiana. (Phytopathology. 



III. p. 249.) 

 Hartley, C. 1913. Twig canker and black birch. (Phytopathology. III. 



p. 248—249.) 

 Heald, F. D. 1912. Notes on new or little-known plant diseases in 



North America for the year 1910. (Phytopathology. II. p. 5—22.) 

 Heald, F. D. 1912. The leaf spot of the pear. (Phytopathology. II. p. 



127.) [Referring to Septoria pyricola, — Mycosphaerella sentina. — 



Trelease.] 

 Hedgcock, G. G. 1912. Notes on some diseases of trees in our natio- 

 nal forests. — II. (Phytopathology. II. p. 73—80.) 

 Hedgcock, G. G. 1912. The Cronartium associated with Peridermium 



filamentosum Peck, (Phytopathology. II. p. 176—177). [The new 



name Cronartium filamentosum is proposed. — Trelease]. 

 Hedgcock, G. G. and W. H. Long. 1912. An undescribed species of 



Peridermium from Colorado. (Phytopathology. III. p. 251—252). 



[Peridermium Betheli, on Pinus contorta. — Trelease.] 

 Hedgcock, G. G. and W. H. Long. 1913. Notes on cultures of three 



species of Peridermium. (Phytopathology. III. p. 250—251.) 

 Hewitt, J. L. 1913. Puccinia Pruni-spinosi killing plum nursery stock. 



(Phytopathology. III. p. 270.) 

 Hewitt, J. L. 1913. Rose mildew. (Phytopathology. III. p. 270.) 

 Hiltner. 1913. lieber die Wirkung der Sublimatbeizung des Winter- 

 roggens und des Winterweizens im Jahre 1912/13. (Prakt. Blätter 



f. Pflanzenbau u. Pflanzenschutz. 1913. p. 101.) 

 Hoffmann, J. V. 1912. Aerial isolation and inoculation with Pythium 



Debaryanum. (Phytopathology. II. p. 272.) 

 Hori, S. 1912. A new leaf rust of peach. (Phytopathology. II. p. 143— 



145. 2 pl.). [Puccinia Pruni-Persicae. — Trelease.] 

 Hörne, W. T., W. B. Parker and L. L. Daines. 1912. The method of 



spreading of the olive knot disease. (Phytopathology. II. p. 101 — 



105. 1 pl.). [Referring to Bacterium Sarastanoi. — Trelease.] 

 Humphrey, C. G. 1913. Winter injury to the white elm. (Phytopatho- 

 logy. III. p. 62—63.) 

 Köck, G. 1914. Ueber den Einfluss der Kupfervitriolkalkbrühe auf 



die Gürkenblüte. (Wien, landw. Ztg. LXIV. p. 419-420.) 

 Lawrence, W. H. 1912. Plant diseases induced by Sclerotinia perplexa 



nov. sp. (Bull. Washington agr. Exp. Stat. 1912. 107.) 

 Lewis, C. E. 1912. Inoculation experiments with fungi associated 



with apple leaf spot and canker. (Phytopathology. II. p. 49—62.) 

 Long, W. H. 1912. Notes on three species of rusts on Andropogon. 



