MUSCL 



353 



of mucilage ; the walls of the sperm-cells break, and the 

 spermatozoids are set free (Fig. 242). The antheridia are 

 frequently intermingled with variously shaped hairs (para- 

 physes), and about the cluster there may be one or more 



B 



Fio. 241. 



FIG. 242. 



Fig. 241. Female reproductive organs of a moss, Funaria, hygrometrica. A, apex 

 of the stem ; a, archegonia ; 6, leaves. , archegonium ; 6, base ; h, neck m 

 mouth. C, mouth of fertilized archegonium. A x 100, B X 550. After Sachs. 



Fi?. 242. Male reproductive organs of the same moss. A, antheridium open and 

 permitting the spermatozoids a to escape. B, b, sperm-cell of another moss (Poli/- 

 trichum), with contained spermatozoid: c, spermatozoid free, with two cells at the 

 pointed extremity. A x 350, B x 800. After Sachs. 



whorls of leaves or bracts, giving to the whole much of the 

 appearance of a flower of the Phanerogams. , 



462. The archegonia are elongated flask-shaped bodies, 

 with a swelling base, and a long, slender neck (Fig. 241, 

 B}. The wall is composed of a single layer of cells,, except 



