1899] STRUCTURE OF THE EMBRYO-SAC 159 
The later work of Westermaier,’? Fischer? and Koernicke,”° has 
confirmed the results of Hofmeister’s investigations and added 
a good deal to them. Of these investigators, Koernicke alone 
gives definite information as to the number of antipodal cells 
which may occur. According to his statements, the number 
may rise to thirty-six or even more, the largest number, so 
far as I know, yet recorded, but, as we have seen, very much 
smaller than the normal number in the older embryo-sac of 
Sparganium simplex. The most noticeable difference, aside from 
the number of the antipodal cells, is the very inconspicuous 
character of these before fertilization in Sparganium when com- 
pared with the antipodal cells of the Graminez. 
LyYSICHITON. 
Lysichiton Kamtschatcense (L.) Schott is a monotypic aroid 
of northeastern Asia and Pacific North America where it extends 
from Alaska to northern California. In general appearance it is 
much like the eastern skunk-cabbage, and it is locally known by 
the same name. Its inflorescence, however, is quite different 
and recalls that of some species of Anthurium; indeed, the 
whole plant resembles some of the larger species of this tropical 
American genus, 
I am indebted to Professor Hill of the University of Wash- 
ngton for material of the young flowers and fruit, which he 
kindly sent me from Seattle. Material of the older stages was 
Collected by me in the neighborhood of Sitka, where the plant 
Srows in great abundance. 
oo have been somewhat neglected in the numerous 
a. gical Studies that have been made upon the angio- 
little uo aside from Hofmeister’s researches, there is very 
upon the development of the embryo-sac. Fischer” 
MAIER, /oc, cit, 
"Fischer, A., 7 
Jenaische Zeitschrift 
® Korrn 
149. 1896, 
nu 
Fiscuer, Loe, cit, 
*WestER 
ur Kenntniss d. Embryosacentwickelung einiger Angiospermen. 
14:—. 1880, 
'CKE, Verhandl. d. naturhistor. Vereins d. Preuss. Rheinlande, etc. 53: 
