Hopkins: A New Species of Fern. 363 



bi-pinnate, P. aculeatum and P. ■Braunii. Its greater size, being from 

 two to three times as large, separates it from P. calif orniciim, P. 

 Lemmoni, and P. scopulinum. In its general appearance it probably 

 resembles P. Andersoni most closely, but is much larger in every way, 

 while it is densely clothed with scales on the under surface of the leaf 

 and sparsely so on the upper surface, whereas P. Andersoni is smooth. 



The specific name " Jennings V is given in honor of its collectors, 

 Dr. O. E. and Grace K. Jennings. 



At present it is only known from the type-locality. 



State Normal College, 

 Kent, O. 



