1918] STOKEY—APOGAMY IOI 
projections. In Hemitelia horrida (L.) R. Br. occurred the peculiar 
structure shown in fig. 10, an archegonium in which all the cells 
of the axial row except the egg have developed as vegetative tissue. 
The only development possible in this case would be an apogamous 
development. This species, however, showed no tendencies in 
that direction. It is impossible to say whether or not such struc- 
tures as those shown in figs. 6, 7, 8, and g ever produce leafy 
Fics. 6-8.—Cyathea Tussacii: explanation in text, X255; fig. 9, apogamous 
embryo of Cyathea muricata, X 255; fig. 10, peculiar archegonium of Hemitelia horrida, 
220. 
sporophytes, as in a very short time it would be impossible to dis- 
tinguish such an embryo from one produced as the result of ferti- 
lization. There was nothing in any of the material to indicate that 
these growths were ultimately checked, but the cultures did not 
continue long enough to show whether or not they would develop 
further. Neither species of Cyathea produced any embryos as a 
result of fertilization, although most of the archegonia appeared 
normal and the sperms were active, many being found in archegonia. 
Movunt Hotyoxe Cotiece 
SoutH Haptey, Mass. 
