FLORmJ^JE 



■213 



apidal Cell, which divides by septa; the 

 resulting cells do not divide further, but 

 elongate and swell somewhat at each' end 

 into a borje-shaped form, producing the 

 whorled branches. From the basal cells of 

 these branches secondary branches grow 

 vertically downwards over the toain axis, pro- 

 ducing the pseudo-cortex. According to 

 Sirodot, absorption takes place only in special 

 thin - walled cells ; the resting-cells, with 

 thicker walls, Often display continuity of, pro- 

 toplasm. In Nemalion and Batrachospernium 

 the procarp is .unicellular, and bears at its 

 apex the long thin-walled trichogyne. The 

 antherids a^e scattered in groups ^ at the end 

 of peculiar ovoid cells. After fertilisation 

 the carpogone divides by longitudinal' walls 

 into a multicellular glomerule enclosed in a 

 gelatinous, envelope ; the terminal cells of 

 the branches of the glomerule produce the 

 spores. The cystocarps are external in the 

 axils of the branches in Chantransia, and 



Fig, . igo.^~Cka»transiii virga- 



'• tula Thur. with tetrasporanges 



( X IOC?). (After Kiitzuig.) 



Fig. 191. — C. corymhosa Thur. /, unicellular procarp; h^ 

 with pollinoid attached. Il-V, stages in the branching of 

 the procarp after impregnation (x 400). , fV, cystocarp- 

 ( X 250). (After Thuret.) ~ " 



