420 



Index to Recent Literature 



i 



Wilcox, E. M. A rhizomorphic Root-rot of Fruit Trees. Bull. 

 Oklahoma Agric. Exp. Sta. 49: 1-32. pi. 1-11. F. 1901. 



Wildeman, G. de. Rondeletia strigosa Hemsl. Ic. select, hort. Then- 

 ensis, 2 : //. 53. F. 1901. 



A species from Guatemala. 



Wildeman, E. de. Shepherdia argentea Nutt. Ic. Select, hort. The- 

 nensis, 2 : pi. 50. Ja. 1901. 



Williams, R. S. An Enumeration of the Mosses collected [in the 

 Yukon Territory]. Bull. N. Y. Bot. Garden, 2: 105-148. pi 

 15-24. 27 My. 1 901. 



New species in Ditrichum, Bryobrittonia gen. nov., Bryum (4), Plagiobryum, 

 Brachythecium, and Hypnum. 



- 



Williams, R. S. Hypnum Bestii. Bryologist, 4 : 21,22. Ap. 1901. 



Winkler, H. Untersuchungen zur Theorie der Blattstellungen. I 

 Jahrb. wiss. Bot. 36: 1-79.//. 4. 1901. 



