VOLUME LXVI NUMBER 1 
LEE 
BOTANICAL GAZETTE 
JULY 1978 
EXPERIMENTAL INVESTIGATIONS ON THE GENUS 
RAZOUMOFSKYA 
JAMES R. WEIR 
(WITH NINETEEN FIGURES) 
Introduction 
This article is the first of a series of reports on culture experi- 
ments of mistletoes. The work was begun in September 1911, and 
will be continued indefinitely. The aim of these experiments is to 
determine the validity of the several species as now distinguished, 
their affinities to each other, hosts on which they may be of eco- 
nomic importance or on which they may occasionally occur, and 
influence of host and condition of host as governed by its environ- 
ment on the form, color, or other diagnostic characters commonly 
employed in the classification of these parasites. Since the system- 
atic position and host relationships of several of these plants are not 
definitely defined, and since they are of great economic importance 
in many forest regions, it is believed the work will be of consider- 
able value. The plan of these reports is to record as briefly as pos- 
sible the results of each series of cultures as completed. The present 
report includes considerable discussion, owing to the necessity of 
outlining the problems in hand. The detailed discussion of results 
and technical description of species will be reserved until the con- 
clusion of the experiments. 
