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Fic. 351.—Cord-moss. Tip of a male gametophyte cut vertically to show 
the male gametangia (antheridia) of various ages from young (a) to 
almost full-grown’ (b); also paraphyse (c), protective pseudo-leaves (d) 
and foliage pseudo-leaves (e), 22%. (Sachs.) 
Fic. 352.—Cord-moss. A, antheridium discharging its spermatozoids (a), - 
350, B,b, spermatozoid not yet escaped from its cell-wall; c, the same 
swimming freely, 29°. (Sachs.) 
delicate pseudo-roots from the lower part, pseudo-leaves arranged 
spirally along the sides, and at the tip either male or female game- 
tangia (Figs. 351-353). The gametophyte in Funaria is thus of 
somewhat simpler constitution than in Sphagnum. The cellular 
structure also shows less differentiation. On the other hand, the 
sporophyte is more complex. As shown in Figs. 354, 355 the foot 
becomes a long stalk, and the capsule develops several different 
tissues. The calyptra ruptures transversely at the base and is car- 
ried up on the capsule as a hood which falls off after the capsule is 
mature. A cylindrical spore-layer surrounds an inner mass of cells 
and certain inner cells of the lid break so as to leave behind on the 
capsule after dehiscence a fringe of teeth, called the peristome.1 
Its function is to protect the spores and keep them from being blown 
out by a light breeze which would carry them only a short distance. | 
1 Per’i-stome < Gr. peri, around; stoma, mouth. 
