196 



Mycologia 



Burt, E. A. The Thelephoraceae of North America — XII. Ann. 

 Mo. Bot. Gard. 7 : 81-248. pi. 2-6 & f. 1-48. 8 D 1920. 



Includes 10 new species in Stereum. 



Chardon, C. E. A list of the pyrenomycetes of Porto Rico col- 

 lected by H. H. Whetzel and E. W. Olive. Mycologia 12 : 316- 

 321. 1920. 



Coons, G. H. The Michigan plant disease survey for 1918. Ann. 

 Rep. Michigan Acad. Sci. 21 : 331-343. pi. 15. Jl 1920. 



Davis, W. H. Mammoth clover rust. Proc. Iowa Acad. Sci. 26 : 

 249-258. /. 84-90. 1919. 



Dickson, B. T. Sclerotinia wilt of greenhouse tomatoes. Phyto- 

 pathology 10: 500, 501. /. 2. 1920. 



Dickson, B. T. Stem-end rot of greenhouse tomatoes. Phyto- 

 pathology 10: 498-500. /. I. 1920. 



Diehl, W. W. The fungi of the Wilkes expedition. Mycologia 

 13 : 38-41- I9 21 - 



Contains list of 31 species, with localities. 



Durrell, L. W. A preliminary study of the purple leaf sheath 

 spot of corn. Phytopathology 10: 487-495. /. 1-6. 1920. 



Earle, F. S. El mosaico de la cafia o matizado. El estado actual 

 de la epidermis. Puerto Rico Dept. Agric. y Trab. Circ. 22 : 

 1-0. Ap 1920. 



Edson, H. A. Vascular discoloration of Irish potato tubers. Jour. 



Agric. Res. 20: 277-294. 15 N 1920. 

 Ellen, Sister M. The germination of the spores of Conocephalum 



conicum. Am. Jour. Bot. 7: 458-464. pi. 34, 35. 12 Ja 1921. 

 Folsom, D. Potato mosaic. Maine Agric. Exper. Sta. Bull. 292 : 



157-184. /. 28-30. Au 1920. 

 Higgins, B. B. Morphology and life history of some Ascomy- 



cetes with special reference to the presence and function of 



spermatia. Am. Jour. Bot. 7: 435-444. pi. 30 & f. 1, 2. 12 Ja 



1 921. 



Hotson, J. W. Collar-rot of apple trees in the Yakima Valley. 



Phytopathology 10: 465-486. /. 1-15. 1920. 

 House, H. D. Notes on fungi, VI. N. Y. State Mus. Bull. 219, 



220: 233-246. /. 1-3. 1920. 



Includes Mycena Atkinsoni sp. now 



