346 Eumycetes. 



Allen, R. F. and H. D. M. Jolivette. A study of the light 

 reaction of Piloholus. (VVis. Acad. Sei,, Trans. XVII. p. 533—598. 

 1913.) 



By means of a dark box with a circular opening the authors 

 observed the reaction of cultiires of Piloholus with regard to the 

 accuracy of aim of the sporangiophores toward the source of light, 

 the reaction toward different colored lights, the reaction toward 

 light from two sources. and the reaction toward different colored 

 light from different directions. 



It was found that the aim of the fungus was less accurate as 

 the distance from the source of light became greater. The inaccu- 

 racy was due to the gravity factor. The response to blue light was 

 the same as to white, but perhaps slightly more accurate, the 

 response to yellow light was less accurate, and that toward red 

 light very slight. 



With two sources of light on the same side of the box, the 

 sporangiophores discharged at the nearer and were uninfluenced 

 by the other. Perception and reaction could take place in fully 

 matured sporangiophores. White light showed stronger influence 

 than blue; blue stronger than j^ellow; while red light showed but 

 little attraction for the sporangiophores. 



J. C. Gilman (St. Louis). 



Blakeslee, A. F. and R. A. Gortner. Reaction of rabbits 

 to intravenous injections of mould spores. (Biochem. 

 Bull. IV. p. 45—51. pl. 2. Mar. 1915.) 



Though agglutination was produced, no cytolitic substances 

 capable of dissolving the spores of certain mucors were produced. 



Trelease. 



Davis, J, J., Notes on parasitic fungi in Wisconsin. 

 (Trans. Wisc. Acad. XVIII. 1. p. 78—271. Oct. 1915.) 



Supplementary to the author's Provisional List of Parasitic 

 Fungi in Wisconsin — previousl}'- noted in the Centralblatt — and 

 containing numerous annotations and descriptions. The following 

 new names are proposed: Leptosphaeria folliculata oxyspora, Phyl- 

 losticta Liatrides, Diplodia üvulariae, Septoria Aiidropogonis, S. polita, 

 S. carpinae {Xyloma carpinea Schw.), Sacidiinn viicrosperuuiui {Sep- 

 toria microspenna Pk.), ColletotricJnim Helianthi, Ovulnvia Asperifolii 

 Lappulae, Cercosporella exilis, C. fins^ens, Septoria Senecioni?>-aiireae ^ 

 Cylindrosporium verrniforme , Ascochyta Saniculae , Rannilaria fraxi- 

 nea, Cercospora EchhiocJiloae, Fusarium cavpifieinn , Ascochyta niargi- 

 nata, Septoria cylitidrospora, Colletrotrichum sordidum, Rainularia 

 ionophila, Cercosporella scirpina, C.filiformis, C. trichophila, Cercospora 

 Camptosori, C. Erysinii, C. Conti, and C. Arctostaphyli. Trelease. 



Fromme, F. D., The culture of cereal rust in the green- 

 house. (Bull. Torrey Bot. Club. XL. p. 501—521. 1913.) 



The results of this ins^estigations have been summarized by the 

 author as foUows. 



1. Two of the cereal rusts, Puccinia dispersa Erikss., on rye, 

 and P. coronifera Kleb., on oats, have been cultured in the uredo 

 stage, on the living hosts in the greenhouse, for a consecutive period 



