214 



BOTANY. 



' when set free, swims by means of its two long cilia (Pig. 



125, c). 



395. The archegones are Jlolipated flask-shaped bodies 



with a swelling base and a long slender neck. At matu- 

 m 



Mm' 



Fig. 126.—^, several archegones at the apex of a Moss-stem : B, an 

 archegone more enlarged, showing germ-cell at b ; C, apex of arcnegone 

 at maturity ; X), a Moss-plant with young spore-fruit ; E, the same with 

 mature spore-fruit, showing its stalli, s, spore-case, /, and the remains of 

 the old archegone, c (the calyptra) ; F, vertical section of the spore-case, 

 showing structure ; s, the spore-bearing layer ; d, the lid ; G, a ripe spore- 

 case ; H, spore-case after the lid has fallen oil, showing tlie teeth. All 

 magniiied, 



rity the neck has an open channel from its apex to the base, 

 where there is a rounded germ-cell (Pig. 126). In some 

 mosses the antherids and archegones are intermixed in the 



