592 Index to American botanical literature 



Vries, H. de. On twin hybrids. Bot. Gaz. 44= 4° I ~4°7- D*9°7- 



White, D. A remarkable fossil tree trunk from the middle Devonic of 



N. Y. N. Y. State Mus. Geol. Paper 107 : 327-360. //. /-// 



1907 



White. 



Report on fossil plants from the coal measures of Arkansas. 



U. S. Geol. Surv. Bull. 326: 24-31. 1907 



Wildeman, E. < 



6: 65-67. //. 218. S 1907. 



Wildeman, E. de. Heckeria pe 



6 5 x -53- P L 2I 4- J 



Wildeman. E. 



Ouratea cuspidata Engler. Ic. Sel. Hort. Thenensis 



Ic. Sel. Hort. Thenensis 



de. Polygonatum commutation Dietr. Ic. Sel. Hort. 



Thenensis 6 : 55-57- //• 2I 5- J 





