274 



Mycologia 



Gilbert, W. W. Cotton diseases and their control. U. S. Dept. 



Agric. Bull. 1 187: 3-32. /. 1-18. Mr 1921. 

 Godfrey, G. H., & Harvey, R. B. Motion pictures of zoospore 



production in Phytophthora. Phytopathology 11: 145, 146. pi. 



6. Mr 1921. 



Haenseler, C. M. The effect of salt proportions and concentra- 

 tion on the growth of Aspergillus niger. Am. Jour. Bot. 8: 

 147-163. f. 1-6. 192 1. 



Harter, L. L. Amylase of Rhizopus Tritici, with a considera- 

 tion of its secretion and action. Jour. Agric. Res. 20: 761- 

 786. 15 F 1921. 



Hurd, A. M. Seed-coat injury and viability of seeds of wheat 

 and barley as factors in susceptibility to molds and fungicides. 

 Jour. Agric. Res. 21: 99-122. pi. 13-23. 15 Ap 1921. 



Jagger, I. C. A transmissible mosaic disease of lettuce. • Jour. 

 Agric. Res. 20: 737-740. pi. 87. 15 F 1921. 



Jagger, I. C. Bacterial leafspot disease of celery. Jour. Agric. 

 Res. 21 : 185-188. pi. 46, 47. 2 My 1921. 



Caused by Pseudomonas Apii, sp. nov. 



Kauffman, C. H. Isoachyla, a new genus of the Saprolegniaceae. 

 Am. Jour. Bot. 8: 231-237. pi. 13, 14. 1921. 



Includes /. toruloides, sp. nov., from Michigan. 



Korstian, C. F., Hartley, C, Watts, L. F., & Hahn, G. G. A 



chlorosis of conifers corrected by spraying with ferrous sul- 

 phate. Jour. Agric. Res. 21: 153-171. f. 1-4. 2 My 1921. 

 Lee, H. A. The increase in resistance to citrus canker with the 

 advance in maturity of Citrus trees. Phytopathology 11 : 70- 

 73. F 192 1. 



Lehman, S. G. Soft rot of pepper fruits. Phytopathology n: 

 85-87. F 192 1. 



Lendner, A. Un Champignon parisite sur une Lauracee du genre 

 Ocotea. Bull. Soc. Bot. Geneve II. 12: 122-128. /, 1, 2. 31 

 Ja 1 921. 



Cryptobasidium, gen. nov., from Costa Rica. 



Levin, L, & Levine, M. Malignancy of the crown-gall and its 

 analogy to animal cancer. Jour. Cancer Res. 5* 243-260. /. 

 7-75. 1920. 



Massey, L. M. Experimental data on losses due to crown-canker 

 of rose. Phytopathology 11: 125-134. Mr 1921. 



