12 
Teratologie, Pflanzenkrankheiten. 
Abstracts of papers presented at the twelfth annual meating of the American phyto- 
pathological Society. Chicago, Dez. 1920. (Phytopathology 1921. 11, 31—60.) 
Adams, J. F., Observations on wheat scab in Pennsylvania and its pathological liistology. 
(Phytopathology 1921. 11, 115—124* PL 2—3, 1 Fig.) 
Bodenheimer, F., Zur Kenntnis der Chrysanthemen-Wanzen, sowie der durch sie her¬ 
vorgerufenen Gallbildung. (Ztschr. Pflanzenkr. 1921. 31, 97—100.) 
Buckholder, W. H., The bacterial blight of the bean: a systemic disease. (Phytopatho¬ 
logy 1921. 11, 61—69.) 
Byers, L. P., Notes on the citrus-root nematode, Tylenchus semipenetrans Cobb. (Phyto¬ 
pathology 1921. 11, 90—93.) 
Cimini, M., Sopra un caso di fillomania nella Lunaria amiua, L. (Bull. Soc. Bot. Italiana. 
1921. 58—61, 1 Textfig.) 
Elliott, J. A., A mosaic of sweet and red clovers. (Phytopathology 1921. 11, 146—148, 
1 Fig.) 
Enlows, E., M. A. and Rand, F. V., A lotus leaf-spot caused by Alternaria nelumbii sp. 
nov. (Phytopathology 1921. 11, 135—140, PI. 4, 1 Fig.) 
Fulmek. L., und Stift, A., Über im Jahre 1920 erschienene bemerkenswerte Mitteilungen 
auf dem Gebiete der tierischen und pflanzlichen Feinde der Kartoffelpflanze. (Cen- 
tralbl. f. Bakt. II. Abt. 1921. 54, 492—529.) 
Horne, A. S., Phloem Neerosis (Brown Bast Disease) in Hevea brasiliensis. (Ann. of 
Bot, 1921. 35, 457.) 
Lee, H. A., The increase in resistance to citrus cancer with the advance in maturity of 
citrus trees. (Phytopathology 1921. 11, 70—73.) 
Lehman, S. G., Soft rot of pepper fruits. (Phytopathology 1921. 11, 85—86.) 
Massalongo, C., Spigolature cecidologiche. (Bull. Soc. Bot. Italiana 1921. 2 ■ —6, 1 Textfig.) 
Massey, L. M., Experimental data on losses due to cmwn-cancer of rose. (Phytopatho¬ 
logy 1921. 11, 125—134.) 
McLean, F. T., and Lee, H. A-, The resistance to citrus cancer of Citrus nobilis and a 
Suggestion as to the production of resistent varieties in other citrus species. (Phyto¬ 
pathology 1921. 11, 109—114, 1 Fig.) 
Minio, M., Contributo alla flora Bellunese Teratologia, II (Nota 8a). (Bull. Soc. Bot. 
Italiana 1921. 14—18.) 
Molliard, M., Sur des phönomenes täratologiques survenant dans l’appareil floral de 
la carotte a la suite de traumatismes. (C. R. Acad. Sc. Paris 1921. 172, 473—475.) 
Morse, W. J., The transference of potato late blight by insects. (Phytopathology 1921. 
11, 94—95.) 
Orton, C. R., Lightning injury to potato and cabbage. (Phytopathology 1921. 11, 96 
—98.) 
Pape, H., Schäden durch die Federbuschsporen-Krankheit an Weizen und Spelz in 
Deutschland. (D. landwirtsch. Presse 1921. 43, 582.) [Der Aufsatz enthält Details 
über die Biologie von Dilosphospora graminis Desm.] 
Penzig, T., Pflanzen-Teratologie. 2., stark vermehrte Auf! Bd. 1: Berlin (Bomtraeger) 
1921. 283 S. 
Rathbun, A. E., Methods of direct inoculation with damping-off fungi. (Phytopathology 
1921. 11, 80—84.) 
Rosen, H. R., Further observations on a bacterial rot and stalk rot of field com. (Phyto¬ 
pathology 1921. 11, 74—79.) 
Shunk, J. V., and Wolf, F. A., Further studies on bacterial blight of soybean. (Phyto¬ 
pathology 1921. 11, 18—24.) 
Uphof, J. C. Th., Eine neue Krankheit von Cephalanthus occidentalis L. (Ztschr. Pflan¬ 
zenkr. 1921. 31, 100—108, 1 Textfig.) 
Walker, J. C., Rust of onion followed by a secondary parasite. (Phytopathology 1921. 
11, 87—89 ) 
Vuillemin, P., Les aberrations de la symötrie florale. (C. R. Acad. Sc. Paris 1921. 172, 
35—38.) 
V. Wahl, Schädlinge der Sojabohne. (Ztscbr. f. Pflanzenkr. 1921. 31, 194—196.) 
Pflanzenchemie. 
Euler, H. V., und Myrbäck, K., Vitamine (Biokatalysatoren) B und CO-Enzyme II. 
(Ztschr. physiol. Chemie 1921. 115, 155—169, 1 Fig.) 
Fonrobert, E., Der Kautschuk im Jahi’e 1920. (Kolloid-Ztschr. 1921. 29, 148—156; 
Schluß folgt.) 
