DISEASES OF PLANTS. 749 



correspondents, and of invesiigations at the experiment station for the province 

 of Saxonj\ referring to diseases of cereal, root, and tulier crops; also of tests 

 made with funjdcidal applications and apparatus for their employment. 



A list of 1913 publications is also given. 



Mycological notes, B. G. C. Bolland (Agr. Jour. Egypt, 3 (1913), No. 2, pp. 

 123-1 2t>). — 8ih.h1 wheat soaked in copper sulphate solution of 0.5 to 10 per cent 

 strength for periods varying from 1 to 30 minutes and germinated showed the 

 increasingly injurious effects of concentrations greater than 0.5 i)er cent, and 

 ot exi)osure for longer periods than 10 minutes for the weakest solution and of 

 5 minutes or even 1 minute for higher concentrations. 



A fruit spot on apples originating at Constantinople and examined at 

 Alexandria was diagnosed as due to Cylindrosporium pomi. 



Fungi causing- disease in Surinam, J. Kuijpeb {Rec. Tra/v. Bot. N^erland., 

 It {liH.'i), Xo. 1, pp. Jf.'t-i'>3, figs. 9). — Noting briefly Cercospora cojfeicola spot- 

 ting leaves and aborting grains in Coffea, Lcptosphceria coffeicola in brown 

 leaf spots on coffea MycosiplKercUa coffcw causing less leaf damage than 

 ffirmerly in the same plant, and M. eriodendri, described as a new species on 

 young plants of Eriodendron anfractiiosum. the author also mentions as 

 saprophytic or more or less parasitic, Spficerotheca pannosa on roses, Pfiyllo- 

 sticta tlicohrouiw on cacao leaves, P. coffeicola as a secondary fungus in leaf 

 spots on coffee, Ascocliyta atropa on leaves of Phnseolus mungo, Ccrcospora 

 personata on leaves of Arachis hypogisa, C. rosicola on roses Imjwrted from 

 Kuroi)e, and C. riticola on leaves and fruits of grape. 



A review of some Philippine plant diseases, C. F. Bakkb {Philippine Agr. 

 and Forester, 3 (1914), Xo. 7, pp. 157, 16^). — ^The author briefly notes the oc- 

 currence, distribution, and in some instances the effect produced by fungi 

 :it tacking a considerable number of cultivated plants in the Philippines. 



A new North American Endophyllum, J. C. Arthur and F. D. Fromme 

 (A&.s. in Science, n. ser., 1,1 (1915), No. 101,8, p. 172).— The authors describe a 

 species of Endophyllum which is reported as occurring on species of Callirhoe. 

 Sidalcea, and Althfea in Kansas, Nebraska, Colorado, and Wyoming. This is 

 believetl to be tlie first North American rust which is assigned to the genus 

 Endophyllum, as shown by germination tests. 



Studies in the genus Entorrhiza, C. Febdinandsen and O. Winge {Danak 

 Hot. Arl-ir. 2 (191^), Xo. 1. pp. 13, figs. 8). — According to the authors the 

 genus Entorrhiza has been generally considered a near relative to the Ustilagi- 

 ueje. although Brefeld (E. S. R., 27, p. 746) has advanced the opinion that it 

 belongs to the Ascomycetes, the ascus form of which is unknown. 



As a result of their studies they have come to tlie conclusion that Entorrhiza 

 belongs in the neighborhood of the Ustilagineaj and may be consideretl as a 

 primitive type of this group. All of the species are said to live in the soil and 

 spread their spores by aid "of the water, while the genuine IJstilaglneae are 

 adapted to aerial life. Different sjiecies of Entorrhiza have been recognized 

 which are parasitic on the roots of different species of Juncacese and Cyperaceae. 



A bibliography is given. 



Effect of temperature on Glomerella, C. W. E^gebton (Ahs. in Science, n. 

 ser., 1,1 {1915), Xo. 10-',8, p. 17.',). — The author reports on the fii)ecies or strains 

 of the genus Glomerella which respond differently to different temperatures. 

 One form, the one found on bean, Colletotrichum lindemuthianum. Is very sus- 

 ceptible to high temi)eratures. growth ceasing at about a temperature of 31° C 

 (87.8° F.). This, It is believed, will explain why this form Is not prevalent 

 during the hot part of the summer or In warm climates. The different strains 

 of Glomerella are said to fall into several classes in regard to the temperature 



