SUMMARY OF LITERATURE CITED 185 



WiELAND, G-. R A study of some American Fossil Cycads. Part III. 



The Female Fructification of Cycadeoidea. Am. Jour. Sci. IV. 



7 : 383-391. pis. 8-10. 1899. 

 The Yale Collection of Fossil Cycads. Yale Sci. Month. 6: 1-11. 



pi. 1. 1900. 

 WoRSDELL, W. C. Anatomy of Stems of Macrozamia compared with 



that of other Genera of Cycadeae. Ann. Bot. 10 : 601-630. pis. 



27-28. 1896. 

 The Anatomical Structure of Bowenia spectahilis. Ann. Bot. 



14: 159-160. 1900. 

 The Structure of the Female " Flower " in Ooniferae. Ann. Bot. 



14: 39-83. 1900. 

 The Vascular Structure of the Ovule of Cephalotaxus. Ann. Bot. 



14: 317-318. 1900. 

 The Affinities of the Mesozoic Fossil, Bennettites Gibsonianus. 



Ann. Bot. 14: 717-731. 1900. 

 WoYCiCKi, Z. On Fertilization in Coniferae (in Russian), pp. 1-57. 



pis. 2. 1899. 



