252 



SEEDLESS PLANTS 



except for their color, met with 

 everywhere on wet rocks and 

 banks around shady water courses. 



Mosses are one of the best de- 

 nned of botanical orders, and are 

 too well known 

 to need further 

 specification 

 here. 



Bryophytes 

 form a connect- 



ing link, or rath- 



475- Scapania, a liverwort er a chain of 

 with leafy thallus, approaching . . . 



the form of mosses and lyco- Connecting links 



podiums (from COULTER'S between the next 



"Plant Structures"). 



group, ptendo- 



phytes, and thallophytes. The liverworts 

 represent the more 

 primitive division of 

 the group, and in some 

 of their forms ap- 

 proach so near the 

 thallophytes that it 

 does not take a bot- 

 anist to recognize the 

 relationship. 



477. A common fern 



359. III. Pterido- 

 phytes, or fern plants, 

 include the three divi- 476. A common 



- r , moss plant, with parts 



SlOnS Of ferns, horse- apparently divided into 



tails, and club mosses. root - stem - and leaves - 



_, ,. but with no true dif- 



They differ greatly in f er enti a tion of tis- 



structure, but all pos- sues ( from COULTER'S 

 "Plant Structures"). 



sess a vascular sys- 

 tem, a well-organized system of root, 

 stem, and leaves, and rank next to the 

 spermatophytes in the order of develop- 



