Vol. XLIV 



THE 



IToveEib 



er 



1007 



Editors: JOHN M. COULTER and CHARLES R. BARNES 



CONTENTS 



The Forest Formations of Boulder County, Colorado 



1 



Fertilization in Cypripedium 



fh 



Germination of Seeds of Water Plants 



Robert T. Young 



Lttla Pace 



William Crocker 



Briefer Articles 



Notes oa Two California Nemophilas 

 Branching Sporangiophores of Rhizopus 



Harley P, Ckandler 

 LcRoy H. Harvey 



An Unusual Method of Vegetative Reproduction in Diocaea -luscipula 



John W. Harshberget 



Current Literature 



Hews 



The University of 



Press 



CHICAGO and NIW YORK 

 WilUani WesUy «a« Son, London 



