CURRENT LITERATURE 395 
. H. J. WEBBER in an interesting paper * gives the results of his fur- 
tier studies of Zamia. The two Florida species, Z. floridana DC. and Z. 
fanile L., were pemerly incorrectly referred to Z. integrifolia Jacq. 
et the strobili have been removed from the plants, so that even living 
woids may be secured from such material. The movements of the 
Were studied in a sugar solution. 
h the germination of the microspores was not studied i in detail, it 
‘probable that there is an evanescent prothallial cell in addition to the per- 
rothallial cell and antheridial cell (second prothallial cell of the 
Nor) which are conspicuous in the mature pollen grain. After the division 
‘tthe antheridial cell to form the stalk and body cells, the persistent prothal- 
and the stalk cell become filled with starch and the former arches 
latter so that there is often the appearance of one cell entirely sur- - 
other. The blepharoplasts first appear in the body cell (central ae 
formed de novo from the cytoplasm. They are at first very 
 Scarcely more than points where a few radiating filaments con= - 
they i increase in size, a surrounding membrane | and vacuolated - 
ae seen. Shortly before the division of the body cell, the 
thy ich is regarded as 0 i and 
