120 Botanisches Centralblatt. 



Arthur, J. C. 1918. Uredinales of Costa Rica based on collections by 



E. W. D. Holway. (Mycologia. X. p. tl 1 — 154.) 

 Arthur, J. C. 1918. Uredinales of the Andes, based on collections 



by Dr. and Mrs. Rose. (Bot. Gaz. LXV. p. 460—474.) 

 Arthur, J. C. and J. R. Johnston. 1918. Uredinales of Cuba. (Mem. 



Torrey bot. Club. XVII. p. 97-175. ill.) 

 Atkinson, G. F. 1918. Six misunderstood species of Amanita. (Mem. 



Torrey bot. Club. XVII. p. 12—21.) 

 Bartel, C. 1918. Kulturen von Gärungsorsanismen in sterilisierter 



Erde. (Cbl. Bakt. 2. XL VIII. p. 340—349. 1 F.) 

 Boquet, A. et L. Negre. 1918. Culture du parasite de la lymphangite 



epizootique et reproduction experimentale de la maladie chez le 



cheval. (C. R. Ac. Sc. Paris. CLXVI. p. 308—311.) 

 Boyce, J. S. 1918. Perennial mycelium of Gymnosporangium blasda- 



leanum. (Phytopathology. VIII. p. 161—162.) 

 Burlingham, G. S. 1918. A preliminary report of the Russulae of 



Long Island. (Mem. Torrey bot. Club. XVII. p. 301—306.) 

 Cruchet, S. et E. Mayor. 1918. Contribution ä l'£tude des Champignons 



parasites de l'Engadine. (Jahrber. natf. Ges. Graubündens. N. F. 



LVIII. 12 pp.) 

 Dietel, P. 1918. Ueber die wirtswechselnden Rostpilze. (Cbl. Bakt. 2. 



XLVIII. p. 470-500.) 

 Dodge, B. 0. 1918. Studies in the genus Gymnosporangium. II. Re- 

 port on cultures made in 1915 and 1916. (Bull. Torrey bot. Club. 



XLV. p. 287-300. 1 pl.) 

 Dodge, B. 0. and J. F. Adams. 1918. Some observations on the deve- 



lopment of Peridermium Cerebrum. (Mem. Torrey bot. Club. XVII. 



p. 253—261. 3 f. 3 pl.) 

 Drechsler, C. 1918. The taxonomic position of the genus Actinomy- 



ces. (Proc. nation. Ac. Sc. U. S. A. IV. p. 221-224.) 

 Duysen, F. 1918. Die verschiedenen Hausschwammpilze. (Sitzber. 



Ges. natf. Freunde Berlin. 1918. p. 177—202. 2 T.) 

 Fairman, C. E. 1918. Notes on new species of fungi from various 



localities. II. (Mycologia. X. p. 164—167.) 

 Gäumann. 1918. Ueber die Formen der Peronospora parasitica (Pers.) 



Fries. Ein Beitrag zur Speziesfraee bei den parasitischen Pilzen. 



(Beih. bot. Cbl. 1. XXXV. p. 395-533. 47 A.) 

 Graff, P. W. 1918. Philippine micromycetous fungi. (Mem. Torrey 



bot. Club. XVII. p. 56—73.) 

 Grove, W. B. 1918. Now or noteworthy fungi. Part VI. (Journ. of Bot. 



LVI. p. 285—294, to be cont.) 

 Hastings, S. 1916. The fungi of bare pine wood. (Seiborne Mag. 



XXVII. p. 63-67, 73-79.) 

 Jackson, H. S. 1918. Carduaceous species of Puccinia. I. Species oc- 



curing on the tribe Vernoniae. (Bot Gaz. LXV. p. 289—312.) 

 Keissler, K. von 1918. Ueber Pilze auf Orchideen im Reichenbach- 



schen Herbar. (Beih. bot. Cbl. 2 V XXXVI. p. 307—319.) 

 Kruis, K. und J. Satava. 1918. O vyvoji a kliceni spör jaköz i sexua- 



lite kvasinek. [Ueber die Entwicklung, Keimung der Sporen und 



über die Sexualität der Saccharomyceten]. (Prag, Verlag Böhmisch 



Ak. Wiss. 1918. 67 pp.) 

 Lehmann, G. S. 1918. Conidial formation in Sphaeronema fimbriatum. 



(Mvcologia. X. p. 155—163. 1 pl.) 

 Levine, M. 1918. The physiological properties of two species^ of poi- 



sonous mushrooms. (Mem. Torrey bot. Club. XVII. p. 176—201. 



2 f. 2 pl.) 



