488 



PAL^OBOTANY. 



had no true wood and bark, but only a thin external shell of 

 fibres and scalariform vessels. The Catamites grew in dense 



fig. 386. Calamites cantue/ormis. Carboniferous of Europe and North America. 



brakes on the sandy and muddy flats, subject to inundation, 

 or perhaps even in the water, and they had the power of 

 budding out from the base of the stem, so as to form clumps 



