534 INDEX TO RECENT LITERATURE 
Wight, W. F. The Genus Zritrichum in North America. Bull. 
Torrey Club, 29: 407-414. f. 20 Je. 1902. 
Includes new species and a new combination. 
Wilcox, E. M. Numerical Variation of the Ray Flowers of Com- 
positae. Bot. Gaz. 33: 462-465.f.7. 17 Je. 1902. 
Wilcox, E.N. Stipa Hassei not a good Species. Bot. Gaz. 34: 66. 
Fi 2. - 16 J ago: 
