DISEASES OF PLANTS. 341 



Notes on the nomenclature of some rusts, J. Ramsbottom (Brit. Mycol. Soc. 

 Trans., 4 (1913), pt. 2, pp. 331-340). — The author discusses the synonymy of a 

 number of species of rusts, calling attention to the errors in this respect in two 

 recent books by Grove and Massee (E. S. R., 30, p. 745). 



A new gymnosporangial connection, P. D. Fkomme (Mycologia, 6 (1914), 

 No. 5, pp. 226-230). — The author reports another exception to the. formerly 

 assumed restriction of fecial stages of Gymnosporangium to the family Rosacese, 

 previous exceptions having been noted by Arthur (E. S. R., 26, p. 645). 



Observations and inoculations have now, it is claimed, extended the list to 

 Include the Myricaceaj by establishing the identity of JEcidium myricatum with 

 0. ellisii. A description is given of the new combination under the name G. 

 myricatum. 



Observations on pure cultures of some Ascomycetes and Basidiomycetes, 

 F. T. Bbooks {Brit. Mycol. Soc. Trans., 4 (1913), pt. 2, pp. 239-248) .—r>y means 

 of cultures grown upon wood under sterile conditions the author has succeeded 

 in reproducing a number of basidiomycetous and ascomycetous fungi. 



In his investigations he found that Chlorosplcnium wruginosum, which occurs 

 on many species of wood, is undoubtedly the cause of greening of the wood, as 

 has been claimed. He was also able to associate the Ozonium with Coprinus sp. 

 from spores transferred to blocks of elm wood. 



In addition to the above he has succeeded in producing fruiting forms of 

 Daldinia conccntrica, Hydnum coralloides, Fomes igniarius pomaceus, and 

 Pleurotus ostreatus. 



Eelworms, W. Laidlaw (Jour. Dept. Agr. Victoria, 12 (1914), No. 6, pp. 370- 

 377, figs. 3). — The author discusses briefly the anatomy and life history of 

 nematodes, in particular of Heterodcra radicicola in potato. Experiments with 

 remedial or preventive measures in progress are said to show promise, but are 

 not yet reported in complete form. 



Control of streak disease of barley, Tbitschleb (Illus. Lan&iv. Ztg., 34 

 (1914), No. 53, pp. 501, 502, fig. 1). — Treatments of winter barley seed for 

 Pleospora trichostoma (Hetminthosporvum graminetim) with 0.5 per cent cop- 

 per sulphate, 0.1 per cent formalin, or 0.1 per cent mercuric chlorid, each in 

 various combinations as regards temperatures of previous soakings in water, 

 etc., are reported, the results being given in tabular form. The author states 

 that neither corrosive sublimate nor formalin gave uniformly satisfactory pro- 

 tection to seed grain without excessive injury to germinability, but that better 

 results were obtained by soaking the seed in 0.5 per cent copper sulphate, 

 germinability in this case reaching 92 per cent in sand and 80 per cent in field 

 tests. 



Stinking smut of wheat, H. C. Mijllee and E. Molz (Fiihling's Landw. Ztg., 

 63 (1914), No. 6, pp. 204-214)- — Results are given in considerable detail of seed 

 treatments for protection of wheat against smuts, and of studies on the in- 

 fluence of seeding time on attack therefrom. Treatment of seed with formalde- 

 hyde, followed by the cold and hot water treatment, gave a satisfactory degree 

 of protection without serious injury to germinability. 



Parasitic diseases of cultivated composites, L. Mangin (Rev. Hort. [Paris], 

 86 (1914), ^0. 9, pp. 205-207, figs. 3).— Besides a brief discussion of a few other 

 fungus diseases, illustrations are given of Bremia lactucce on lettuce, Alhugo 

 tragopogonis on salsify, and RaniuJaria cynarw on artichoke. 



Celery leaf spot disease or blight (Dept. Agr. and Tech. Instr. Ireland Jour., 

 14 (1914), No. 3, pp. 540-543, figs. S).— Symptoms and methods of control of 

 celery blight are discussed, the latter including the use of guarantied seetl 

 only, spraying on its first appearance with Bordeaux or Burgundy mixture, 



