RED 



33 



hair-like trichogyne. Fertilization is accomplished when a 

 sperm cell, carried by water currents, becomes attached to 

 the trychogyne. The wall of the sperm and trichogyne 

 dissolve and the two male nuclei pass down the trychogyne 



FIG. 6. Red algoe. Irish moss (Chondrus crispus) 1, stemlike portion 

 of the thallus; 2, branch of the thallus; 3, bifurcating or forked tips of the 

 thallus. 



and one only fuses with the egg cell of the carpogonium. 

 The carpogonium develops, after fertilization, into numerous 

 filaments, each of which bears a carpospore. The collection 

 of spores and otner structures is the cystocarp. The carpo- 

 phores develop into new plants. 



