
Fig. 466. Archegonia and eggs of Cycas rumphii 
Left, archegonium in the upper part of which the ventral-canal nucleus and 
surrounding cytoplasm are disintegrating (x17) ; center, an egg into the upper : 
portion of which a spermatozoid has penetrated (x 22); right, an egg with the | 
nucleus of the spermatozoid about to fuse with the egg nucleus (x 22) 
2200000 a 
SSoqgno00 Oo 
oa ENN 
Oe 



= oN 
or, Ge SO 
LS; ee ee Oe 
CL] f mies en Se, 
TWN) AD 
WE 





() 
BD ss & 
AIGA -O 
Mier eie ise 
eae nO ROR masealoesaeo= 
0 
CSC Sa STIRS B aS SSIS 
6 


Fig. 467. Cross section of a portion of a leaf of Cycas, showing midrib 
and portion of thin part of blade. (x 50) 
