THF DRVONIAN AQB. 



103 



lopJiyton, but of grander dimensions, and with the 

 branches covered with linear leaves, and sometimes 

 terminated by cones. These are Lepidodendra, gigan- 



Fig. 12.— VEGBIATICN OF THB IBVOirUir. 



To the left are Calamites ; next to these, LeftophUum ; in the centre are 

 Lcpidodendron, Sigillaria, and a Pine. Below are FsilopKyion, Cordaiies, Ferns, 

 and Asterophyllites. 



