528 



LIFE-HISTORIES 



Tn dry weather, after calyptra and lid have fallen, a strong wind 

 will shake the capsule on its slender elastic foot-stalk, and scatter 

 the spores out between the teeth. The most remarkal)le difference 

 between the sporophytes of Funaria and Sphagnum is that the 

 former like that of Anthoceros contains chlorophyll and is thus able 



Fig. 353. — Cord-moss. A, tip of a fenialo ganictophytc cut vortirally to 

 show the female gametangia (archogoiiia) surrounded by pseudo-leaves 

 (b), ^^. B, an archegonium showing the swollen lower part (b) con- 

 taining an unfertilized egg-cell, the neck (h) with its orifice (/«) still 

 closed and the axial row of cells being converted into mucilage, *?«. 

 C, orifice of an archegonium after fertilization, with its cell-walls 

 colored dark red, ^-'l^-. (Sachs.) 



Fig. 354. — Cord-moss. A, embryo of sporophyte (/,/') still within the arche- 

 gonium (h, h), cut vertically, h, Ijcing the neck, ^^-. B, C, more ad- 

 vanced stages in the tlcvelopment of the sporophyte (/) covered by the 

 old archegonium or calyptra (r) ui)on which the neck (h) still remains, 

 Y- (Sachs.) 



to manufacture a large part of its own footl while the latter is like 

 the sporophytes of Riccia and Marchantia in being entirely para- 

 sitic upon the gametophyte. Inorganic materials alasorbed by the 

 slender pseudo-roots of the gametophyte are supplied to the foot 

 of the stalk and thence conducted to the photosynthetic tissue of 

 the capsule. Conduction take places mainly through a central 



