w 



'V9 . CANADIAN FOSSILS. * 



' '■ f Trunks of Tebe Fbrns. 



103. P$aron{us Urianm, S. N. — M. D., New York. 



Trunk completely invested with cord-like aerial roots parallel to each other, 

 and either closely oppressed or arranged at regular interval*. Each 

 root consisting of an outer, probably cellular^ coat, with an axis of 

 fibres and tcalari/orm or reticulated vessels. 



C « ■ .^,^' - '^ 



' ! -M ■ ■ f'i'ilt' ■ 



Psaroniu* Eriatuu. From a Specimen from New Tork. 

 (Exterior witli aerial roots, reduced.) 





Ptaronius textilit. From a Specimen from New York 

 (Longitudinal Section.) 



