AN ENUMERATION OP CULTIVATED FEENS. 79 



Var. Cambricum, Willd. ; Bolt. Fil. Brit. t. 2, /. 

 5 A ; Lindl. and Moore, Nat. Print. Ferns, t. 3, /. A. 

 P. Cambricum, Linn. 



Va/r. semilacerum, Link. ; Lindl. and Moore, Nat. 

 Print. Ferns, t. 2 A (bis). P. vulgare, var. Hiber- 

 nicum, Sowerby, Ferns of Or. Brit. t. 10. 



Var. acutum, Lindl. and Moore, Nat. Print. Ferns, 

 t.lE. 



Var. serratum, Willd.; Lindl. and Moore, Nat. 

 Print. Ferns, t.2 B (bis). 



Var. crenatum, Lindl. and Moore, Nat. Print. 

 Ferns, t. 3 B. 



Var. bifidum, Lindl. and Moore, Nat. Print. Ferns, 

 t.l F. 



Var. cristatum, Linn. ; Lowe's New Ferns, t. 26 B. 



6. P. plebejum, Schlecht. ; Hook. Gard. Ferns, t. 48 ; Lowe's 



New Ferns, t. 33. P. Karwinskianum, A. Braun ; 

 J. 8m. Gat. Cult. Ferns, 1857. Tropical America. T. 



** Fronds pinnate. 



7. P. Henchmanii, /. 8m. ; Moore and Houlst. in Mag. of 



Bot. ; Lowe's Ferns, 1, t. 30. P. fraternum, J. Sm. Cat. 

 Cult. Ferns, 1857 (? Schlecht.). Mexico. 



8. P. subpetiolatum, HooJc. Ic. PI. t. 391, 392. P. biser- 



ratum, Mart, et Gal. Fil. Mex. t. 9, /. 1. Mexico. 



9. P. sororium, H. B. IT. West Indies and Tropical America. 



6. LEPICYSTIS, /. 8m. 



Rhizome short and rigid, or slender and surculose. Fronds 

 pinnatifid, 6 18 inches high, densely covered with round or 

 elongated ciliated scales. Veins pinnately forked, anastomosing, 



Genus 6. Portion of fertile frond, under side. No. 3. 



