18 PTERIS SEMIPINNATA. 



My thanks are due to Mr. Joseph Henderson, of Wentvvorth, 

 for a plant of this Fern, and to M. Schott, of the Imperial 

 Gardens, of Schonbriinn, for fronds. 



It is in the Catalogues of Messrs. Sim, of Foot's Cray; E. 

 G. Henderson, of St. John's Wood; A. Henderson, of Pine- 

 apple Place; Rollisson, of Tooting; and Stansfield, of Todmorden. 



The illustration is from a plant in my own collection. 



