Neue Litteratuf. 39 



Ridgway, C. S. 1917. Methods for the differentiation of pathogenic 

 fungi in the tissues of the host. (Phytopathology. VII. p. 389— 391.) 



Stahel, G. 1917. De Zuid-Amerikaansche Hevea-bladziekte veroor- 

 zaakt door Melanopsammopsis Ulei nov. gen. (= Dothidella Ulei 

 P. Hennings). (Ball. Dep. Landb. Suriname. 1917.34. 111 pp. 29 pl.) 



Weir, J. R. 1917. New hosts for Razoumofskya americana and R. 

 occidentalis abietina. (Phytopathology. VII. p. 140.) 



Young, H. C, and E. H. Cooper. 1917. A method for determining the 

 fungicidal coefficient of lime sulphur and other common fungicides. 

 (Annual Rep. Michigan Ac. Sc. XIX. p. 221—236.) 



XIY. Bacteriologie. 



Batthel, C. 1917. Die Geissein des Bacterium radicicola (Beij.)-(Zschr. 



Gährungsphys. VI. p. 13—17.) 

 Behrens, C. 1917. The cultivation of Trypanosoma Brucei. (Proc. 



Indiana Ac. Sc. 1916 [1917]. p. 264—271. ill.) 

 Buchanan, R. E. 1918. Studies in the Classification and nomenclature 



of the bacteria. VII. The sub-groups and genera of the Chlamydo- 



bacteriales. (Journ. Bact. III. p. 301—306.) 

 Gruber, G. B. 1918. Ueber die Meningokokken und die Meningo- 



kokkenerkrankungen. (Berlin, 1918. 8". 58 pp.) 

 Koch, A. 1918. Bodenbakterien und Pfianzenernährung. (Jahrb. 



deutsch, landw. Ges. XXXIII. p. 67-77.) 

 Noyes, H, A. and E. Voigt. 1917. A technic for the bacteriological 



examination of soils. (Proc. Indiana Ac. Sc. 1916 [1917]. p. 272— 301. ill.) 

 Schultz, F. 1917. Die Beeinflussung der Beweglichkeit von Bakterien 



der Typhus coli Gruppen in Nährlösungen mit Zuckerzusätzen. 



(Strassburg, 1917. 8°. 40 pp.) 



XY. Lichenes. 



Claassen, E. 1917. Second alphabetical list of the lichens collected 

 in several counties of northern Ohio. (Ohio Journ. Sc. XVIII. 

 p. 62-63.) 



Howe, Jr. R. H. 1918. A further note on the lichens of Nantucket. 

 (Rhodora. XX. p. 40.) 



MoxJey, G. L. 1918. Additions to the liehen Flora of southern Cali- 

 fornia. (Bull. S. California Ac. Sc. XVII. p. 61—62.) 



Sampaio, G. 1917. Espöcies novas de liquenes. (Ann. sc. Ac, poly- 

 techn. Porto. XII. p. 47—50.) 



Zanfrognini, C. 1917. Fugillo di Licheni corticicoli della Somalia. 

 fN. Notarisia. XXXII. p. 145—175.) 



XVI. Bryophyten. 



Britton, E. G. 1918. Further notes on Jagerinopsis, Broth. (Bryologist. 



XXI. p. 80.) 

 Britton, E. G. 1918. Porotrichum not Thamnobryum. (Bryologist. 



XXI. p. 83—84.) 

 Dixon, H. N. 1918. ,,Chatubinskia", a further correction. (Bryologist. 



XXI. p. 80 — 81.) [Reason is given for writing the name Chalu- 



binskia. — Trelease] 

 Dixon, H. N. 1918. The mosses collected by the Smithsonian African 



expedition 1909—10. (Smithson. misc. Coli. LXIX. 2. 28 pp. 2 pl.) 

 DixoD, H. N. 1918. Uganda mosses collected by R. Dümmer and 



others. (Smithson. misc. Coli. LXIX. 8. 10 pp. 1 pl.) 

 Haynes, C. C. and A. W. Evans. 1918. Sullivant moss Society exchange 



list of Hepaticae found in the United States, Canada and Arctic 



America. (Bryologist. XXI. p. 87—90.) 



