218 
INDEX BIBLIOGRAPHIQUE 
8G. Williamson and Scott, A contribution to our Knowledge of Ljginodendron. 
(Ann. of. Bot. 1897), 
87. WiELAND G. Notes on living Cycas : I, On the Zamias of Florida (The Amer. 
Journ. O f Science, vol. XIII, 1902). 
88. WoRSDELL. W. G. The Anatomy of the stem of Macrozamia compared with 
that of other généra of Cycadeae (Ann. of Bot,, vol. X, n° XL, 1896). 
89. ÎD. 
90. Id. 
91. Id. 
92. Id. 
93. Id. 
94. ZlMMER 
On Transfusion-Tissue : its origin and function in the leaves of 
Gymnocperms plants (The trans. of the Linn, Soc. of London, vol. V, 
part 8, 1897''. 
The vascular structure of the Sporophylls of the Cycadaceae 
Ann, of bot., vol. XI, 1897). 
The comparative Anatomy of certain généra of the Cycadaceae 
(The journ. of the Linn. Soc., vol. XXXIII, 1898). 
The comparative anatomy of certain species of Encephalartos 
(The trans. of the Linn. Soc. of London, vol. V, part 14, 1900'). 
Contributions to the comparative anatomy of the Cycadaceae 
(id., vol. \T, Part 2. 1901). 
MANN, Ueber das Transfusiongewebe [Flora, 1880). 
