FLOEIDEJE. 



275 



Upon fertilization taking place, which is as in Nemalion, 

 the peripheral cells of the carpogonium (excepting those con- 

 stituting the tricliophore — i.e., the trichogyne-bearer) undergo 

 division, and become developed into articulated branches, 

 which lie side by side, and form a more or less spherical 



Fig. Wi.—A,LejoUsia mediierranea. r, root-like processes (rhizoids) ; a, antherid- 

 lum ; Xj sperraatozoidB ; b, carpogonium, with trichosyue, to thu apex of which two 

 spermat 'Zoids ar ■ attached ; 5, section of ripe sporocarp ; ^, ripe spore escaping. .B, 

 Jyemalion muUiJldum. a, branch with antheridia and spermatozoids ; 6, carpogo- 

 nium, with triciiogyne, the latter with spermatozoids attached to its apex. I> and .£', 

 development of the sporocarp of Nemaliort. x 150.— After Bornet. 



organ, the so-called "pericarp." In the meantime the cen- 

 tral cell of the carpogonium develops processes or outgrowths 

 which eventually become spores, occupying the cavity of the 

 "pericarp" {A, s. Pig. 185). An interesting fact in this 

 connection is that neither the trichogyne nor trichophore 

 take part in the development subsequent to fertilization ; in 

 other words, the cells which directly receive the influence of 

 the spermatozoids do not themselves undergo a subsequent 

 development, but adjoining ones do develop, on the one 

 hand, into the spores, and on the other into the filaments 

 of the pericarp. The sporocarp in this genus is thus seen 

 to be somewhat more complex than in Nemalion, including 



