CRYPTOGAMS 337 
389. The antheridia. — Examine one of the male recep- 
tacles on both surfaces and in vertical section. Notice the 
tiny egg-shaped bodies sunk in little 
cavities between the lobes just under 
the upper epidermis (Fig. 478). These 
are antheridia. When mature, they 
rupture at the apex, and multitudes of 
extremely small bodies, called anthero- 
zoids, or spermatozoids, are discharged 
from them. 
390. Archegonia.— Next examine one 
of the female receptacles. Look on the 
under surface, between the narrow divi- 
sions of the receptacle, for radiating rows — yg, 478. Longitudinal 
of flask-shaped bodies with their necks section of a male receptacle 
turned downward, and all surrounded a 
by a toothed sheath or involucre (Fig. % oni i ventral scales; 
479). These bodies are the archegonia, ” ; 
or female organs, and correspond, loosely speaking, to the 
ovaries of flowering plants. If the receptacle is a mature 
one, the archegonia will be replaced 
by the ripe spore cases (sporangia), 
as at f, Fig. 479. 
Make enlarged drawings of the 
upper surface of a male and a female 
receptacle, and of a vertical section 
of each, passing through an anther- 
idium in the male, and an arche- 
\ gonial row in the female receptacle. 
Fic. 479. — Under sideof an T,abel the parts observed in each. 
archegonial receptacle enlarged. 2 
The archegonia are borne 391. Minute study of an arche- 
= Get elas gonium.— Place under the micro- 
view in the figure; f, a spore scope a very thin, longitudinal section 
eee through a ray of a receptacle con- 
taining a young archegonium, and observe that the latter 
consists of a lower portion, the venter, v, Fig. 480, and an 
