THE GAMETOPHYTES OF TAXUS CANADENSIS MARSH 
CONTRIBUTIONS FROM THE HULL BOTANICAL LABORATORY 234 — 
A. W. DUPLER 
(WITH PLATES XI-XIV) 
Introduction 
While the European Taxus baccata L. has been studied by a. 
number of workers and its morphology is quite well known, up to 
the present time no accounts have been published dealing in any 
connected way with the morphology of the American form, Taxus 
canadensis Marsh., records having been made of only a few scat- 
tered observations. Although by some, including PitcER (7) in 
ENGLER’s Das Pflanzenreich, T. canadensis is considered as merely 
a subspecies of T. baccata, it has seemed worth while to investigate 
its morphology and compare it with other forms, and especially with 
the results obtained in the study of T. baccata, most of the work in 
which was done a number of years ago. The present paper gives” es : 
an account of the male and female gametophytes in connection ; oe 
with Bsaed Mieneadl — i a —. wit 
Wa 
‘Whe miatedal want in the chad ins collected dur ng t 
of a peso don, P 
