Vol. XLV 



No. 5 



u 



THE 



May 1908 



CHARLES 



CONTENTS 



Apogamy in Nephrodium 



Shigeo Yamanouchi 



Alpine Vegetation in the Vicinity of Long's Peak, 



Colorado 



Briefer Articles 



Variation in Helianthus 

 Endosperm of Pontederiaceae 

 An Abnormal Porella platyphylla 



William 



T. D. A. Cockcrell 



R. Wilson Smith 



F. M. Andrews 



Current Literature 



News 



The Utiiversity of 



■ T-^*^ - 



w 



ago 



CHICAGO and HEW YOHK 



illiant Vesley an* Son, Loadoa 



