THE GAMETES IN PLANTS AXD AMAIALS 317 



Figs. 123-127.— Gametes of various algae: Fig. 123, young egg cell of Volvox 

 aureus, connected with surrounding vegetative cells by numerous plasmatic strands 

 (from Klein, '89) ; Fig. 1 24, spermatozoid of Volvox aureus (from Klein. 'Sq) ; Fig. 1 25. 

 part of iilament of Ocdogouium, showing oiigonium with large egg and below three 

 antheridia, from two of which spermatozoids have escaped (from Coulter, etc., '10); 

 Fig. 126, branch of Chara, bearing oogonium, og, containing a single egg and anlhcrid- 

 ium, an (after Sachs, from Coulter, etc., '10); Fig. 127, spermatozoid of Chara (from 

 Belajefr, '94). 



