27] Phycomyceten. Ustilagineen. Uredineen. 463 



341. Colley, R. H. Discovery of internal telia produced by 

 a species of Cronartium. (Journ. Agric. Research VIII. 1917, p. 329 — 332, 

 1 Tab.) — Cronartium ribicolum. Auf p. 332 Verzeichnis der Literatur. 



342. Colley, R. H. Pycnial scars, an important diagnostic 

 character for the white pine blister rust. (Abstract.) (Phytopatho- 

 logy VII, 1917, p. 77.) 



343. Colley, R. H. Techniquc for the study of the white pine 

 blister rust. (Abstract.) (Journ. Washingt. Acad. Sei. VII, Nr. 10, 1917, 

 p. 314 [Proc. Bot. Soc. Wash. 119th meeting].) 



344. Cruchet, P. Contribution ä l'etude des Uredinees. (Bull. 

 Soc. Vaudoise Sc. nat, LI. 1917, p. G23— 631, 3 Fig.) — Siehe „Pilze" 1917, 

 Ref. Nr. 136. 



345. Fischer,Ed. Infektionsversuche mit derUredinee Thecopsora 

 sparsa (Wint.). (Mitt. Naturf. Ges. Bern 1916, Sitzungsber. 20. Mai 1916, 

 ersch. 1917, p. XXXIV— XXXV.) — Siehe „Pilze" 1917, Ref. Nr. 188. 



346. Hedgcock, G. C. and Bethel, E. Pinon blister rust. (Journ. 

 Agric. Research, 1917, p. 411 — 424.) — Cronartium occidentale n. sp. 



347. Hedgcock, G. C. and Hunt, N. R. New species of Peridermium. 

 (Mycologia IX, 1917, p. 239—240.) — Siehe „Pilze" 1917, Ref. Nr. 261. 



348. Humphrey, H. B. Puccinia glumarum. (Phytopathology VII, 

 1917, p. 142—143.) 



349. Jackson, H. S. Two new forest tree rusts from the North- 

 west. (Phytopathology VII, October 1917, p. 352 — 355.) — Chrysomyxa 

 Weirii n. sp. auf Picea Engelmannii Parry und Melampsora occidentalis n. sp. 

 auf 5 Po pulus- Arten. 



350. Klebahn., H. Über Spezialisierung und spezialisierte 

 Formen im Bereich der Pilze. (Die Naturw. V, 1917, p. 543 — 550.) — ■ 

 Kurze Übersicht über die Heteröcie und Spezialisierung hauptsächlich der 

 Rostpilze. 



351. Mains, E. B. The relation of some rusts to the pkysio- 

 logy of their hosts. (Amer. Journ. Bot. IV, 1917, p. 179—220, 2 PI.) 



352. Mains, E. B. Species of Melampsora oecurring upon Euphorbia 

 in North America. (Phytopathology VII. 1917, p. 101—105.) X. A. 



Melampsora monticola n. sp. 



353. Mc Cubbin, W. A. Contributions to our knowledge of 

 the white pine blister rust. (Phytopathology VII, 1917, p. 95 — 100, 

 1 Fig.) 



354. Mc Cubbin, W. A. Does Cronartium ribicola winter on the 

 currant? (Phytopathology VII, 1917, p. 17—31, 1 Fig.) — Verf. glaubt, 

 dass eine Überwinterung von Cronartium ribicola als Mycelform in den Knospen 

 von Ribes stattfinde. 



355. Mc Cubbin, W. A. and Posey, G. G. Development of blister 

 rust aecia on white pines after they had been out down. (Phyto- 

 pathology VII, 1917, p. 391—392.) 



356. Meinecke, E. P. The white pine blister rust and the 

 chestnut bark di'sease. (Monthly Bull.'State Com. Hist. Calif. VI. 1917, 

 p. 268—279.) 



357. Metcalf, Haven. The control of the white pine blister 

 rust. (Abstract.) (Journ. Wash. Acad. Sei. VII. Nr. 10. 1917, p. 313—314 

 [Proc. Bot. Soc. Wash. 119th meeting].) 



