320 Index to American botanical literature 



Reed, G. M. Infection experiments with the mildew on cucurbits, 

 Erysiphe cichoracearum DC. Trans. Wisconsin Acad. 15 : 527-547. 

 My 1907. 



Rehm, H. Ascomycetes exs. fasc. 40. Ann. Myc. 5 : 465-473. 31 

 D 1907. 



Includes 3 new species, one each in Capnodium^ Winterella, and Phyllachora, 



Rehm, H. Ascomycetes novi. Ann. Myc. 5 : 516-546. 31 D 1907. 



Includes 49 new American species. 



Riddle, L. W. Notothylas orbicularis in Massachusetts* Rhodora 9: 

 219, 220. 10 D 1907. 



Russel, H. Check list of the flora of Milwaukee County. Bull. Wis- 

 consin Nat. Hist. Soc. II. 5: 167-250. 1907. 



Rydberg, P. A, Scandinavians who have contributed to the knowledge 

 of the flora of North America. Augustana Libr. Proc. 6 : 1-49. 1907. 



Sands, M. C. 



Microsph 



Alni. Trans. Wisconsin Acad. 15: 733-752.//. 46. 1907. 

 Shull, G. H. Importance of the mutation theory in practical breeding. 



Proc. Am. Breed. Ass. 3: 60-67. i9°7- 

 Smith, G. D. Description and picture of Calvatia elata and Sarco- 



' 1 floccosa. Myc. Bull. 5 : 367, 368, 370. //. 272, 273* D 



1907 



Warren, L. E. Poison sumac. Am. J 



79: 499-522. N 1907. [Illust.] 

 Stevens, F. L. Some remarkable nuclear structures in Synchytriunu 



Ann. Myc. 5: 480-484. pi. 13. 31 D 1907. 

 Warnstorf, C. Neue europaische und aussereuropaische Torfmoose. 



Hedwigia 47 : 76-112. 30 S 1907. 



Includes 14 new American species in Sphagnum. 



Wheeler, L. A. New stations for two Vermont plants. Rhodora 9 : 

 227. 30 D 1907. 



Wight, W. F. A new larch from Alaska. Smithson. Misc. Coll. 5 o: 

 174-//. 17. 10 Jl 1007. 



